# ProstoPay vs KLASS

The clearest difference is rating: ProstoPay at 3.7 against KLASS's 2.7. KLASS's advantage is update cadence (every 3 weeks vs every 2 months). On price, review sentiment, ratings volume and ads there is nothing between them.

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

ProstoPay holds the better App Store score, 3.7 against 2.7. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews point the same way: 20% of ProstoPay's written reviews are positive against 14% of KLASS's.

ProstoPay ships an update every 2 months, KLASS every 3 weeks. The most recent releases landed on October 15, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | ProstoPay | KLASS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/prostopay/id1377010486/reviews)** | [2.7 (3 ratings)](https://appshunter.io/ios/app/klass-market/id1471519663/reviews) |
| Number of ratings | 3 | 3 |
| Positive reviews | **20.4% of reviews** | 13.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 34 MB | 30 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Prostopay LLC](https://appshunter.io/developer/1377010485) | [UKR-TRADE,TOV](https://appshunter.io/developer/1471519662) |

## What reviewers say

### ProstoPay

[App page](https://appshunter.io/ios/app/prostopay/id1377010486)

Easily purchase coffee and snacks from vending machines and coffee makers. Pay securely using Apple Pay or Masterpass. Simply scan a QR code or enter the machine's code to select and pay for your items.

**Highlights:** Purchase coffee and snacks, Vending machine and coffee maker integration, Apple Pay support, Masterpass mobile wallet payment, QR code scanning for payment, Automated retail point purchases

**Features:** macOS Compatibility

**In-app purchases:** none


### KLASS

[App page](https://appshunter.io/ios/app/klass-market/id1471519663)

Manage your purchases and loyalty programs with this app. Access virtual cards, track spending, create shopping lists, and discover special offers. Earn and exchange bonuses for discounts and purchases.

**Highlights:** Virtual loyalty cards, Common account for family bonuses, Product catalog and special offers, Shopping check-lists, Purchase history and budget planning, Recipe integration for shopping lists, Bonus exchange for purchases and discounts

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ProstoPay free?

ProstoPay is free to download, with no in-app purchases.

### Is KLASS free?

KLASS is free to download, with no in-app purchases.

### Which has better reviews, ProstoPay or KLASS?

ProstoPay is rated higher. ProstoPay averages 3.7 out of 5 from 3 ratings, while KLASS averages 2.7 from 3 ratings.

### Do ProstoPay or KLASS have ads?

Neither ProstoPay nor KLASS shows ads.

### Which is updated more often, ProstoPay or KLASS?

ProstoPay ships an update every 2 months, and KLASS every 3 weeks. Most recently, ProstoPay was updated on October 15, 2026 and KLASS on October 20, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*