Comparison

Qerko vs Diamond Fish

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Qerko

Effortlessly pay your restaurant bills without waiting. Scan a QR code, pay with a swipe, and receive your receipt instantly. Earn rewards through the loyalty program just for using the app.

Highlights
  • Scan QR codes to pay bills
  • Pay bills with a swipe
  • Instant digital receipts
  • Split bills with friends
  • Loyalty program rewards
  • Multiple payment methods
Features
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Qerko was born from our desire to make paying in restaurants, bistros and cafés easier. We didn’t want to spend any more time waiting in the queue at the bar or complicatedly separate the bill with our friends at one table. And we pursued this smart payment system beyond gastronomy borders! Download the app, scan the QR code and easily pay with just a swipe. You will get your receipt right after payment in your e-mail and in the profile in app, too. Registration and adding the payment method can be done in less than a minute. Qerko app represents revolution in payment, so let yourself be part of it and decide on your own, when and how you are going to pay. What is more, with Qerko, you can get rewards in the loyalty program too. Benefits of the app: • Easy pay your bill or its part in a restaurant. • No more wasting time waiting till the waiter comes. • Comfy payment via QR code in a restaurant or at your TV screen. • You need only your mobile phone to pay. • You get rewards in the loyalty program just for paying. • Many payment methods so everyone can choose - Visa, Mastercard, meal voucher cards Edenred, Sodexo or Benefit Plus or Apple Pay

About

Diamond Fish

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Diamond Fish - Znáte chuť opravdu kvalitních ryb? S Diamond Fish získáte čerstvost, jako byste si rybu právě ulovili sami. Chováme ryby tak, aby byly nejen zdravé a chutné, ale především udržitelné v Naší Rybí Farmě Senica na Slovensku. Naše farma je o lidech, vášni pro ryby a hlubokém respektu k přírodě. Hlavní misí je „Naučit Česko a Slovensko jíst kvalitní ryby!“

Screenshots

Qerko4 screens
Diamond Fish4 screens

Verdict

The call

The clearest difference is update cadence: Qerko at every 3 weeks against Diamond Fish's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Qerko ships an update every 3 weeks, Diamond Fish every 3 months. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.

Scorecard1 real difference · 9 level
Qerko versus Diamond Fish: the parameters behind the verdict, then further details
ParameterQerkoDiamond Fish
PriceFreeFree
Rating4.7 (98 ratings) — better—
Positive reviews69.7% of reviews—
Number of ratings98 — better—
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPod — betteriPhone
Requires iOS15.6 — better16.0
Further details — not scored
Size36 MB76 MB
Age rating4+4+
DeveloperPiano Payments s.r.o.Digitalni panely s.r.o.

In-app purchases

None

Qerko

No in-app purchases

None

Diamond Fish

No in-app purchases

Questions

Is Qerko free?
Qerko is free to download, with no in-app purchases.
Is Diamond Fish free?
Diamond Fish is free to download, with no in-app purchases.
Do Qerko or Diamond Fish have ads?
Neither Qerko nor Diamond Fish shows ads.
Which is updated more often, Qerko or Diamond Fish?
Qerko ships an update every 3 weeks, and Diamond Fish every 3 months. Most recently, Qerko was updated on October 24, 2026 and Diamond Fish on October 14, 2026.

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