# MTP Callsign Trainer vs Cadenza

The clearest difference is in-app purchases: MTP Callsign Trainer at none against Cadenza's 3. MTP Callsign Trainer also leads on device support (3 vs 1). Cadenza's advantage is update cadence (every 2 weeks vs every 6 weeks). On price, ads 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. MTP Callsign Trainer asks for nothing beyond the download.

MTP Callsign Trainer ships an update every 6 weeks, Cadenza every 2 weeks. Both last shipped on September 26, 2026.

## The numbers

| Metric | MTP Callsign Trainer | Cadenza |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Size | 49 MB | 73 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Oliver Bross](https://appshunter.io/developer/1859081127) | [Ivan Terekhin](https://appshunter.io/developer/888645337) |

## What reviewers say

### MTP Callsign Trainer

[App page](https://appshunter.io/ios/app/mtp-callsign-trainer/id6758036106)

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

**In-app purchases:** none


### Cadenza

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

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cadenza Pro | $6.99 | per month |
| Cadenza Pro | $24.99 | per year |
| Cadenza Pro Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is MTP Callsign Trainer free?

MTP Callsign Trainer is free to download, with no in-app purchases.

### Is Cadenza free?

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

### Do MTP Callsign Trainer or Cadenza have ads?

Neither MTP Callsign Trainer nor Cadenza shows ads.

### Which is updated more often, MTP Callsign Trainer or Cadenza?

MTP Callsign Trainer ships an update every 6 weeks, and Cadenza every 2 weeks. Most recently, MTP Callsign Trainer was updated on September 26, 2026 and Cadenza on September 26, 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.*