# BKBI vs Cadenza

The clearest difference is in-app purchases: BKBI at none against Cadenza's 3. Cadenza's advantage is update cadence (every 4 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Cadenza sells 3 in-app purchases, starting at $6.99 per month. BKBI asks for nothing beyond the download.

BKBI ships an update every 2 weeks, Cadenza every 4 days. Both last shipped on October 28, 2026.

## The numbers

| Metric | BKBI | Cadenza |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cadenza-morse-code-trainer/id6785429210/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 111 MB | 72 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Atulkumar Patel](https://appshunter.io/developer/1853478524) | [Ivan Terekhin](https://appshunter.io/developer/888645337) |

## What reviewers say

### BKBI

[App page](https://appshunter.io/ios/app/bkbi/id6755414724)

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

**In-app purchases:** none


### Cadenza

[App page](https://appshunter.io/ios/app/cadenza-morse-code-trainer/id6785429210)

Learn Morse code by ear using the Koch method with adaptive learning. Practice characters, decode messages, and improve your skills with various tools. Offers offline functionality and no ads.

**Highlights:** Learn Morse code by ear, Adaptive Koch method training, Character, number, and punctuation trainer, Morse code decoder and translator, Offline functionality, Progress tracking and achievements

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cadenza Pro | $6.99 | per month |
| Cadenza Pro | $29.99 | per year |
| Cadenza Pro Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is BKBI free?

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

### Is Cadenza free?

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

### Do BKBI or Cadenza have ads?

Neither BKBI nor Cadenza shows ads.

### Which is updated more often, BKBI or Cadenza?

BKBI ships an update every 2 weeks, and Cadenza every 4 days. Most recently, BKBI was updated on October 28, 2026 and Cadenza on October 28, 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.*