# CNB Rates vs BDC.AI

The clearest difference is in-app purchases: BDC.AI at none against CNB Rates's 1. BDC.AI also leads on update cadence (every 10 days vs every 35 months). CNB Rates's advantage is iOS requirement (18.6 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. CNB Rates sells 1 one-off in-app purchase. BDC.AI asks for nothing beyond the download.

CNB Rates ships an update every 35 months, BDC.AI every 10 days. The most recent releases landed on October 11, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | CNB Rates | BDC.AI |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 35 months | **Every 10 days** |
| Monetization | Free | — |
| Size | 3 MB | 50 MB |
| Requires iOS | **18.6** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Martin Stanek](https://appshunter.io/developer/955316341) | [Noah Campbell](https://appshunter.io/developer/1852085400) |

## What reviewers say

### CNB Rates

[App page](https://appshunter.io/ios/app/cnb-rates/id963588673)

This app displays the current currency exchange rates as published by the Czech National Bank. It provides up-to-date information on foreign currency values for users interested in financial markets.

**Highlights:** Current currency exchange rates, Czech National Bank data, Foreign currency values, Up-to-date financial information

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Features | $0.99 | one-time |


### BDC.AI

[App page](https://appshunter.io/ios/app/bdcai/id6755126833)

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

**In-app purchases:** none


## Frequently asked questions

### Is CNB Rates free?

CNB Rates is free to download, with in-app purchases available.

### Is BDC.AI free?

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

### Do CNB Rates or BDC.AI have ads?

Neither CNB Rates nor BDC.AI shows ads.

### Which is updated more often, CNB Rates or BDC.AI?

CNB Rates ships an update every 35 months, and BDC.AI every 10 days. Most recently, CNB Rates was updated on October 11, 2026 and BDC.AI on October 24, 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.*