# MTP Callsign Trainer vs Longpath CW

The clearest difference is in-app purchases: MTP Callsign Trainer at none against Longpath CW's 8. MTP Callsign Trainer also leads on ads (none vs shown) and iOS requirement (15.1 vs 18.2). Longpath CW's advantage is update cadence (every 9 days vs every 6 weeks). On price and device support there is nothing between them.

Both are free to download. Longpath CW sells 8 in-app purchases, starting at $2.99 per month. MTP Callsign Trainer asks for nothing beyond the download.

MTP Callsign Trainer ships an update every 6 weeks, Longpath CW every 9 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | MTP Callsign Trainer | Longpath CW |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 9 days** |
| Monetization | — | Free with in-app purchases |
| Size | 49 MB | 49 MB |
| Requires iOS | **15.1** | 18.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Oliver Bross](https://appshunter.io/developer/1859081127) | [Tobias Wissmueller](https://appshunter.io/developer/785655742) |

## 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


### Longpath CW

[App page](https://appshunter.io/ios/app/longpath-cw/id6802228316)

Learn to recognize Morse code by sound, not by decoding letters. Practice sending with your own Morse key or an on-screen one, and connect with other learners live. Offers offline practice and detailed statistics.

**Highlights:** Morse code recognition by sound, Practice with physical Morse key via Bluetooth, Live Morse channels with other learners, Offline private practice mode, Koch method character training, Farnsworth spacing for rhythm learning, On-screen key for practice

**Features:** Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Channels (monthly) | $2.99 | per month |
| Channels (yearly) | $24.99 | per year |
| Donation: Dit | $0.99 | one-time |
| Donation: Dah | $2.99 | one-time |
| Remove Ads | $3.99 | one-time |
| Donation: QSL | $3.99 | one-time |
| Donation: 73 | $8.99 | one-time |
| BLE-Key Support | $11.99 | one-time |


## Frequently asked questions

### Is MTP Callsign Trainer free?

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

### Is Longpath CW free?

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

### Do MTP Callsign Trainer or Longpath CW have ads?

Longpath CW shows ads; MTP Callsign Trainer does not.

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

MTP Callsign Trainer ships an update every 6 weeks, and Longpath CW every 9 days. Most recently, MTP Callsign Trainer was updated on October 25, 2026 and Longpath CW on October 25, 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.*