# Определитель купюр vs Kelyo

The clearest difference is update cadence: Kelyo at weekly against Определитель купюр's every 2 months. Определитель купюр's advantage is review sentiment (69% vs 50%) and iOS requirement (11.0 vs 18.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Определитель купюр ships an update every 2 months, Kelyo weekly. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Определитель купюр | Kelyo |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **69.2% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free | Free |
| Size | 31 MB | 2 MB |
| Requires iOS | **11.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [LABORATORY SENSOR-TECH](https://appshunter.io/developer/1439044582) | [Aleksei Gubarev](https://appshunter.io/developer/1842659871) |

## What reviewers say

### Определитель купюр

[App page](https://appshunter.io/ios/app/id1439044583)

This app helps visually impaired users quickly identify banknotes using their smartphone camera. It employs intelligent algorithms to provide results through visual cues, voice output, and distinct vibrations. It is not designed for counterfeit detection.

**Highlights:** Banknote recognition via smartphone camera, Visual, auditory, and tactile feedback, Voice assistant integration, Braille display support, Intelligent algorithmic processing

**Features:** macOS Compatibility

**In-app purchases:** none


### Kelyo

[App page](https://appshunter.io/ios/app/kelyo/id6753136196)

Track currency and precious metal prices from the Central Bank of Russia. Features a currency converter, metal calculator with assay support, and a customizable home screen widget. Works offline with cached data.

**Highlights:** Currency and metal rates from CBRF, Precious metal calculator with assay support, Currency converter with custom rates, Offline access with cached data, Customizable home screen widget, Automatic data updates

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Определитель купюр free?

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

### Is Kelyo free?

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

### Do Определитель купюр or Kelyo have ads?

Neither Определитель купюр nor Kelyo shows ads.

### Which is updated more often, Определитель купюр or Kelyo?

Определитель купюр ships an update every 2 months, and Kelyo weekly. Most recently, Определитель купюр was updated on November 2, 2026 and Kelyo on October 30, 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.*