You have three app listings open. One takes 25% of whatever it wins back. One costs a flat $19 a month. One says "free to install" and then, in smaller print, "additional charges may apply." They all promise to fight your chargebacks, and none of them makes it easy to see what you will actually pay.
The flat fee vs percentage chargeback app question comes down to one number: how much money you recover each month. A percentage fee costs nothing in a month with no wins and gets expensive as your recoveries grow. A flat fee costs the same every month and wins once your recoveries pass a few hundred dollars. For a store with three disputes a month the two are close. For a store with fifty, the gap is in the hundreds.
This guide is for you if:
- You are comparing chargeback apps and the pricing pages do not line up, so you cannot tell which is cheaper.
- You lose a handful of disputes a month and wonder whether a percentage fee is a better deal than a subscription.
- You sell higher-priced items and want to know how fee caps change the math.
Last updated: 30 October 2026. Written by the ChargeFix team. Reviewed against sources on 30 October 2026.
The 30-second answer (TL;DR)
- A percentage fee (also called a success fee) takes a share of every dispute the app wins back. You pay nothing when it wins nothing.
- A flat fee is a monthly subscription, usually with a cap on how many disputes it covers. You pay it even in a month with no wins.
- Percentage rates in the market cluster between 15% and 25% of the recovered amount. Some have a cap per case, which matters on large orders.
- Flat fees beat a 25% success fee once you recover more than about $76 a month with a $19 plan. At 15% the break-even is about $127.
- Below that, a percentage fee is fine and a free plan can be better still.
- Always ask three things: what counts as recovered, whether there is a cap, and what else is billed on top.
- Prices change. The figures in this guide come from listings checked on 30 October 2026.
Quick note: "Free to install" on the Shopify App Store only means there is no fixed monthly charge. Most of the listings we read add "additional charges may apply." The real price is the usage fee.
Flat fee vs percentage chargeback app at a glance
| Model | How you pay | Good when | Watch out for |
|---|---|---|---|
| Success fee | A share of each recovered dispute | Few disputes, uncertain wins | Cost grows with every win |
| Success fee with a cap | A share, capped per case | High-priced orders | The cap only helps on big cases |
| Flat monthly fee | A set price per month | Steady dispute volume | Pay even when nothing is won |
| Hybrid | Small subscription plus a share | Medium volume | Two meters running |
| Per-alert fee | A fee per prevented dispute | Alert-based prevention | Fees stack with other fees |
| Free or sponsored | No fee to you | Any size, if the terms hold | Read who funds it and why |
How does a percentage chargeback app fee work?
The app takes a cut of the money it gets back for you. If it wins a $100 dispute and the rate is 20%, you pay $20 and keep $80. If it loses, you owe nothing for that case. This is also called a success fee or a pay-for-performance model.
The appeal is obvious. You carry no risk, and the app only gets paid when you do. A percentage of recovered money is also the easiest chargeback app pricing model to explain in one line. For a new store or a store that has never fought a chargeback, that makes trying a tool feel safe.
The details are where the cost hides. Here are the four questions that decide what a percentage fee really costs.
What counts as "recovered"? Most apps charge on the disputed amount you win back. Chargeflow's pricing page, for example, says its 25% applies to each recovered chargeback and that the fee excludes the dispute fee. Other apps are less clear. Check whether the fee is calculated on the disputed amount alone, or on the amount plus the chargeback fee Shopify returns when you win.
Is there a cap? A cap limits the fee on any single case. Paidback's listing says 15% of the recovered amount, capped at $250 per dispute. Redo's July 2026 pricing comparison lists Disputifier at 20% of recovered revenue, capped at $250 per won case. Caps only matter on large orders. On an $85 order, 20% is $17 and the cap never comes into play.
What about partial wins? A bank can decide a case in part. Ask whether the fee applies to the partial amount you recover. Most do, but few spell it out on the listing.
What is billed besides the percentage? Some apps run several meters at once. Chargeflow's page lists a $29 fee per deflected chargeback for alerts and a scan fee for its prevention product after 1,000 free scans, alongside the 25% automation fee. Redo's pricing article walks through a made-up store with 20,000 orders and 120 disputes where the combined bill reaches $7,460 in a month. That is an illustration by a competitor, not a quote, but it shows how the meters add up.
How does a flat fee chargeback app work?
You pay a set price each month, and the plan includes a fixed number of disputes, filings or evidence packs. Wins do not change the bill.
Flat pricing comes in a few shapes in the current market:
- Tiers by dispute count. DisputeDesk's listing has a free plan with 5 evidence packs, then $29 a month for 20 packs, $129 for 100 and $299 for 400. Its listing says there is no success fee.
- Tiers tied to your Shopify plan. ChargePay's listing prices four plans from $19.99 to $99.99 a month, each matched to a Shopify plan. Alerts cost extra, at $29 per Ethoca alert and $19 per RDR or CDRN alert.
- Tiers by filings. ChargeFix has a free plan with 2 filings a month, a $19 plan with 25, a $49 plan with 100 and a $99 plan with unlimited filings. A dispute counts as one filing the first time its evidence is saved or filed, and usage resets on the 1st of the month. Yearly plans are listed as 2 months free, and billing goes through Shopify. There is never a cut of what you win.
The appeal is predictability. You know your bill before the month starts, and a good month does not cost you more.
The weakness is just as clear. You pay whether or not the app wins anything. If your disputes are rare, or most of them are not winnable, a subscription can cost more than a success fee would have.
What does the market charge today?
Here is a snapshot from the Shopify App Store listings and vendor pricing pages we read on 30 October 2026. Prices change, so confirm before you decide.
| App | Model | What the listing says |
|---|---|---|
| Chargeflow | Success fee plus add-ons | 25% of recovered for Automation, $29 per deflected chargeback for Alerts, Prevent at $0.10 per scan after 1,000 free |
| ChargebackWiz | Success fee | 18% of recovered, no monthly fee |
| Paidback | Success fee with cap | 15% of recovered, capped at $250 per dispute |
| Disputifier | Success fee, plus alerts | Share of recovered revenue and a per-alert fee on the listing; Redo reports 20% capped at $250 per won case |
| Chargeback Dispute Specialist | Hybrid | $4.99 plus 15%, $14.99 plus 13%, $29.99 plus 10%, or $499 flat |
| DisputeDesk | Flat tiers | Free (5 packs), $29, $129, $299 a month |
| ChargePay | Flat, tied to Shopify plan | $19.99 to $99.99 a month, plus alert fees |
| ChargeFix | Flat tiers | Free (2 filings), $19, $49, $99 a month |
| Redo Reclaim | No fee, per Redo | $0 to you, funded by Redo, according to Redo's own article |
Two notes on that table. First, the last row comes from the vendor's own article, so treat the claim as theirs. Second, the number of reviews varies widely, from over 400 on Chargeflow's listing to none on several newer apps. Price is one factor. Track record is another.
Flat fee vs percentage chargeback app: what does each cost at 3, 10 and 50 disputes?
Numbers settle chargeback app pricing questions faster than opinions. These three examples are illustrations with assumed figures, not forecasts. We apply each percentage to the disputed amount you win back and ignore the returned $15 Shopify fee, since that is how most listings read.
Illustration 1: a small store, 3 disputes a month. Average disputed order is $60, and the app wins 2 of the 3. Recovered amount: $120.
| Option | Monthly cost |
|---|---|
| 25% success fee | $30.00 |
| 20% success fee | $24.00 |
| 18% success fee | $21.60 |
| 15% success fee | $18.00 |
| Flat $19 plan | $19.00 |
At this size the models are close. A 15% fee is a dollar cheaper than the flat plan, and a 25% fee costs $11 more. If you have one or two disputes a month, a free plan is the cheapest option of all. ChargeFix's free plan covers 2 filings a month at $0.
Illustration 2: a growing store, 10 disputes a month. Average disputed order is $90, and the app wins 5 of the 10. Recovered amount: $450.
| Option | Monthly cost | Per year |
|---|---|---|
| 25% success fee | $112.50 | $1,350 |
| 20% success fee | $90.00 | $1,080 |
| 18% success fee | $81.00 | $972 |
| 15% success fee | $67.50 | $810 |
| Flat $19 plan | $19.00 | $228 |
| Flat $29 plan | $29.00 | $348 |
Now the gap is real. Against a 25% success fee, a flat $19 plan saves $93.50 a month, or $1,122 a year.
Illustration 3: a busy store, 50 disputes a month. Average disputed order is $200, and the app wins 30 of the 50. Recovered amount: $6,000.
| Option | Monthly cost |
|---|---|
| 25% success fee | $1,500 |
| 20% success fee | $1,200 |
| 18% success fee | $1,080 |
| 15% success fee | $900 |
| Flat $49 plan (100 filings) | $49 |
| Flat $129 plan (100 packs) | $129 |
At this scale the percentage fees cost between $900 and $1,500 a month for the same work. The $250 per-case caps never apply, because 20% of $200 is only $40.
The pattern is simple. Percentage fees scale with your success. Flat fees scale with your volume, and volume costs less than success does.
What about the hybrid plans with a small subscription and a smaller percentage?
Some apps split the difference. Chargeback Dispute Specialist's listing is the clearest example we found. It sells four plans: Auto at $4.99 a month plus 15% of disputes won, Pro at $14.99 plus 13%, Expert at $29.99 plus 10%, and a VIP plan at a flat $499 with no revenue share.
The idea is that you pay more upfront to pay a lower percentage later. Run it against our two earlier examples, using the percentage of recovered amount.
| Plan | At $450 recovered | At $6,000 recovered |
|---|---|---|
| Auto ($4.99 + 15%) | $72.49 | $904.99 |
| Pro ($14.99 + 13%) | $73.49 | $794.99 |
| Expert ($29.99 + 10%) | $74.99 | $629.99 |
| VIP ($499 flat) | $499.00 | $499.00 |
For a store recovering $450 a month, the three tiers cost almost the same, about $72 to $75, so the choice barely matters. At $6,000 the Expert plan saves about $275 a month against Auto. The VIP plan only makes sense above roughly $4,700 in monthly recoveries, because at lower volumes its $499 is more than any of the percentage tiers. Note also that the Expert and VIP plans bundle human review and an account manager, so you are paying for service, not only for software.
Hybrid plans are not wrong. They are just two meters, and you need to add them together before you compare.
Why a bad month and a good month look so different
Disputes are lumpy. A calm month can have one dispute. The month after a holiday sale can have twenty. That lumpiness is the real argument between the two models, so it is worth following one store through a year.
Illustration 5: a seasonal store over twelve months. Assume the app recovers $150 a month for nine ordinary months, $800 in November, $1,100 in December and $400 in January from holiday returns. The year's total recovered is $3,650.
| Option | Cost for the year |
|---|---|
| 25% success fee | $912.50 |
| 20% success fee | $730.00 |
| 18% success fee | $657.00 |
| 15% success fee | $547.50 |
| Flat $19 plan all year | $228.00 |
| Flat $49 plan all year | $588.00 |
The $19 plan wins by a distance, if your busiest months stay inside its 25 filings. If December pushes you past that and you stay on the $49 plan all year to be safe, you still spend $588, which beats a 25%, 20% and 18% fee. It loses to a 15% fee by $40.50. So flat does not always win. It wins here because the store has a few big months, and percentage fees punish big months.
Now look at the worst and best month side by side.
| Month | Recovered | 25% fee | Flat $19 plan |
|---|---|---|---|
| A quiet month with no wins | $0 | $0 | $19 |
| An ordinary month | $150 | $37.50 | $19 |
| December | $1,100 | $275 | $19 |
The percentage model is cheaper in exactly one case: the month where you win nothing. In every other month, the flat plan costs less. That is the trade in plain terms. You accept a small certain cost in quiet months to avoid a large variable cost in good ones.
When does a cap change the answer?
Caps help on high-priced orders and do nothing on cheap ones.
Illustration 4: one big win. A customer disputes a $2,000 order, and the app wins it.
| Option | Fee on this one case |
|---|---|
| 25% success fee, no cap | $500 |
| 20% success fee, capped at $250 | $250 (20% would be $400) |
| 18% success fee, no cap | $360 |
| 15% success fee, capped at $250 | $250 (15% would be $300) |
| Flat $19 plan | $19 |
Caps blunt the worst of it, but a $250 fee on one case is still thirteen times the monthly flat fee. If your average order is above $500, a cap is a reason to prefer a capped percentage model over an uncapped one, and a flat plan is still cheaper than both.
If your orders are $40 to $120, ignore caps entirely. They are marketing for a problem you do not have.
Where is the break-even between flat and percentage?
Divide the flat monthly fee by the percentage rate. The result is the monthly recovered amount where the two cost the same. Above it, the flat fee wins. Below it, the percentage fee wins.
| Flat fee | vs 25% | vs 20% | vs 18% | vs 15% |
|---|---|---|---|---|
| $19 a month | $76 | $95 | $106 | $127 |
| $49 a month | $196 | $245 | $272 | $327 |
Read it like this: if you recover $76 or less each month, a 25% success fee costs less than a $19 plan. Anything above $76 and the plan is cheaper. Recovering $76 means winning about one $76 dispute in a month. Most stores that fight chargebacks regularly pass that line without trying.
To find your own number, take your last three months of disputes, add up what you won or would have won with good evidence, and divide by three. Our chargeback recovery and ROI calculator estimates the extra sales and time a tool could save you, and our chargeback cost calculator shows what disputes cost you today. For a deeper look at measuring your own results, see our guide on how to measure your own recovery rate. It is written for Canadian stores, and the method works the same way for US stores.
What do percentage fees do better?
A fair comparison has to give the other side its due. Percentage pricing has real strengths.
No risk in a bad month. If you have no disputes, or none you can win, you pay nothing. A flat plan charges you regardless.
Easy to try. There is no commitment, so a new store can test an app without budgeting for it.
The app is paid when you are. Some merchants like that alignment. If the tool does well, it earns more.
There is a counterpoint worth knowing. Redo's comparison notes that revenue-share vendors can have reason to favor high-value cases, so a higher win rate may recover less money overall. We cannot say that every app behaves that way, but it is a fair question to ask: does the tool work the $40 disputes as hard as the $400 ones?
Percentage pricing also tends to hide its cost. Paying 25% of $450 feels small in the month. Paying $1,350 across a year does not.
What do flat fees do better?
The cost stays put as you grow. Your bill does not climb when your recoveries climb. For a store scaling its ad spend, which tends to grow disputes with it, that matters.
No conflict over what counts. There is no argument about whether a partial win, a returned fee or a late bank decision was "recovered."
It is easy to budget. You know the number before the month starts.
It encourages you to use the tool on small cases. With a percentage fee, a $25 dispute may not be worth the app's cut and your time. With a flat plan, the marginal cost of one more filing is zero, so you can file cases a percentage model would make marginal.
Flat plans have their own cost: the subscription runs even in quiet months, and the filings cap can bind in busy ones. ChargeFix's $19 plan, for instance, includes 25 filings a month. If you regularly pass that, you move up a tier.
Where our own flat pricing is weaker
We would rather you hear this from us. ChargeFix's flat plans are a good deal at most volumes, and they have limits.
You pay in months with no wins. The $19 plan costs $19 whether you win five disputes or none. If your store sees a dispute every other month, the free plan is the better fit, and it is why a free plan exists.
There is a filing cap. The $19 plan includes 25 filings a month and the free plan includes 2. A very busy month can push you into a higher tier.
It reads Shopify Payments disputes only. If you process cards through another gateway, ChargeFix does not see those disputes. Several competing tools support more processors, and for those stores they are the better choice.
It does not promise wins. The letter is written from your real records and leaves out claims your records cannot support. That is honest, and it also means a case with no tracking is a weak case.
It does not prevent disputes. It files evidence after a chargeback exists. It does not lower your dispute count.
If those limits rule us out, you will be better served elsewhere, and we would rather you know now.
What other charges hide behind "free to install"?
Read the whole listing, then the pricing page. These are the extras we saw across the apps we read.
- Per-alert fees. Alerts that stop a dispute before it becomes a chargeback are billed per event, at $14 to $29 in the listings we saw. They are a different product from fighting disputes, and some bundles combine them.
- Per-scan fees. One prevention product charges per order screened after a free allowance.
- Minimum or Shopify-plan-tied pricing. Some subscriptions depend on which Shopify plan you are on, so your price rises when your store plan rises.
- Top-up packs. One tiered plan sells extra evidence packs once you pass your monthly quota.
- Trials that become charges. Check what happens on the day a trial ends.
And one more thing to check: how the app counts usage. ChargeFix counts a dispute as one filing the first time its evidence is saved or filed. Another app may count each draft. Know the unit before you compare prices.
What about win rates? Can I compare apps on those?
Not reliably. Apps advertise win-rate claims, but they are not measured the same way. Redo's comparison points out that Chargeflow advertises a 300% increase in win rate on average and that Disputifier cites about 60%, and that the two figures are not measured comparably. One compares against an earlier baseline. The other is an absolute rate.
What you can measure is your own result. Track three numbers for each month: disputes filed, disputes won, and dollars recovered. Divide dollars recovered by dollars disputed. That is your recovery rate, and it is the only number that tells you whether a tool is paying for itself.
No honest app can promise you a win. The bank decides, and the decision is final. The factors that you control are the quality of your evidence and whether you file on time. Both depend on your records. A tool that says it will fight for you without good records behind it is promising something it cannot deliver.
How do you choose? A quick guide by store type
| Your situation | Likely best fit | Why |
|---|---|---|
| 0 to 2 disputes a month | A free plan | Nothing to optimize yet |
| 3 to 5 disputes, small orders | Free plan or low flat plan | Percentage and flat are close |
| 6 to 25 disputes a month | Flat plan | Savings are already clear |
| 25+ disputes a month | Flat plan with a higher cap | Percentage fees become large |
| Orders over $500 | Flat plan, or a capped percentage plan | One win can trigger a big fee |
| Seasonal spikes (holidays) | Flat plan with room to scale up | Percentage costs spike with success |
| Very unsure about the tool | Free plan or a plan with a trial | Test before you commit |
Remember that price is only one criterion. Check which payment processors the app supports, whether it fits your workflow, and how honest its claims are.
Eight questions to ask before you install anything
- What exactly is the fee calculated on, and does it include the returned chargeback fee?
- Is there a cap per case, and does it apply to partial wins?
- What else is billed: alerts, scans, add-ons or top-up packs?
- What happens on the day the free trial ends?
- Is there a monthly minimum or contract term?
- What is the unit of a filing, and what counts toward my quota?
- Which payment processors does it read, and does my store qualify?
- Does it work every dispute, or only the high-value ones?
If an app cannot answer these in a sentence each, the pricing is more complicated than it looks.
Common mistakes
Picking the lowest percentage. A 15% fee on $6,000 is still $900. Compare dollars at your volume, not percentages.
Ignoring caps because they sound generous. A cap of $250 only helps if you have cases worth over $1,250. Check your average order first.
Paying for features you do not use. An alert product, a scan product and a recovery product are three different things. Buy the one you need.
Judging a tool by a month. Disputes arrive in lumps. Compare over a quarter.
Forgetting the unit of use. Quotas on filings or packs matter in busy months. Confirm how your usage is counted.
Expecting a tool to lower your dispute ratio. Winning returns money. It does not remove disputes from your monitoring count. Prevention does that, and apps that file evidence do not do it.
Treating "free to install" as the price. Read the line after it.
What we checked, and what you should check
We read each Shopify App Store listing and each vendor pricing page named above on 30 October 2026, and we quoted the figures as listed. Four things are worth confirming yourself before you decide.
- Current prices. Listings change. Check the page the day you install.
- What the fee is calculated on. Ask the vendor in writing if the listing is vague.
- Whether your store qualifies. Several listings say they work only with stores that meet certain criteria.
- Your own numbers. Use your last three months of disputes, not our examples.
Frequently asked questions
Is a flat fee or a percentage fee cheaper for a chargeback app?
It depends on how much you recover each month. A percentage fee is cheaper when you recover very little, since you pay nothing on no wins. A flat fee is cheaper once your recoveries pass a few hundred dollars a month. With a $19 plan against a 25% fee, the break-even is $76 recovered.
What is a success fee on a chargeback app?
A success fee is a share of each dispute the app wins back for you. If the rate is 20% and the app recovers $100, you pay $20. You pay nothing for lost cases. Rates in the listings we read ranged from 15% to 25%, sometimes with a cap per case.
Do chargeback apps charge on top of the percentage?
Some do. Alerts, which try to stop a dispute before it becomes a chargeback, are often billed per event at $14 to $29. Prevention scans can be billed per order after a free allowance. Read the whole pricing page, not just the headline rate, and add up every meter that applies to you.
Is there a chargeback app with no fees at all?
One vendor says its recovery product charges merchants nothing and is funded by the vendor, according to its own article. Read its terms before you rely on that. Some apps also have free plans with a small monthly quota, such as 2 or 5 filings. Free tiers suit stores with very few disputes.
Does a fee cap protect me on large orders?
Partly. A cap of $250 per case limits the fee on a $2,000 win to $250, instead of $400 at 20%. That still costs far more than a flat plan. Caps do nothing for orders under about $1,250, because the percentage is already below the cap.
How do I work out my break-even point?
Divide the flat monthly fee by the percentage rate. For a $19 plan and a 25% fee, that is $19 divided by 0.25, which is $76. If you recover more than $76 a month, the flat plan costs less. Use your last three months of results as the input.
Can a chargeback app guarantee wins?
No. The card issuer makes the final decision and there is no appeal. Win-rate claims also vary in how they are measured, so they cannot be compared across apps. What a tool can do is organize your evidence and file on time. Judge it on your own recovery rate.
Should I pay a percentage when I only have one or two disputes a month?
Probably not, if a free plan covers you. At one or two disputes, a percentage fee costs a few dollars to a few tens of dollars. A free plan with a small quota costs nothing. Move to a paid plan when your volume outgrows the free allowance.
Do chargeback apps lower my dispute rate?
Apps that file evidence recover money after a dispute exists. They do not remove the dispute from the count that card networks watch. Lowering the rate takes prevention: clear billing descriptors, accurate delivery promises, fast refunds and good order confirmations.
Start free trial with ChargeFix
ChargeFix charges a flat monthly fee and never takes a cut of what you win. You can start on the free plan, and paid plans include a 14-day free trial, so you can see the evidence checks and letters on your own disputes before you pay anything.
Sources
- Chargeflow pricing
- Chargeflow on the Shopify App Store
- ChargebackWiz
- Paidback on the Shopify App Store
- Disputifier on the Shopify App Store
- Chargeback Dispute Specialist on the Shopify App Store
- DisputeDesk on the Shopify App Store
- ChargePay on the Shopify App Store
- Redo: chargeback representment pricing, line by line
- Redo: Chargeflow pricing
- Redo: best chargeback management software
- Shopify Help Center: chargeback process
01Choosing a tool
02Fees and money
03Fees and money
04Choosing a tool
05Choosing a tool
06Choosing a tool