# Radio Messenger vs DitDah Decoder

The clearest difference is price: Radio Messenger at Free against DitDah Decoder's $19.99. DitDah Decoder's advantage is in-app purchases (none vs 2). On update cadence, ads, device support and iOS requirement there is nothing between them.

Radio Messenger is free to download; DitDah Decoder costs $19.99 up front. Radio Messenger sells 2 in-app purchases, starting at $1.99 per month. DitDah Decoder asks for nothing beyond the download.

Radio Messenger ships an update every 3 weeks, DitDah Decoder monthly. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Radio Messenger | DitDah Decoder |
| --- | --- | --- |
| Price | **Free** | $19.99 |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/radio-messenger/id6730110865/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Freemium | — |
| Size | 39 MB | 29 MB |
| Requires iOS | 18.6 | **18.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Island Magic Co.](https://appshunter.io/developer/1529387252) | [Timothy Diehl](https://appshunter.io/developer/1859707586) |

## What reviewers say

### Radio Messenger

[App page](https://appshunter.io/ios/app/radio-messenger/id6730110865)

Communicate off-grid using amateur radio frequencies. Send messages, files, photos, and locations without cellular service. Supports APRS and enhanced direct messaging modes.

**Highlights:** Off-grid messaging, APRS messaging, Enhanced messaging, Location sharing, Offline maps, File and image sharing, Identity verification

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Radio Messenger Plus Monthly | $1.99 | per month |
| Radio Messenger Plus Yearly | $14.99 | per year |


### DitDah Decoder

[App page](https://appshunter.io/ios/app/ditdah-decoder-morse-code-cw/id6756274811)

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

**In-app purchases:** none


## Frequently asked questions

### Is Radio Messenger free?

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

### Is DitDah Decoder free?

DitDah Decoder costs $19.99, with no in-app purchases.

### Do Radio Messenger or DitDah Decoder have ads?

Neither Radio Messenger nor DitDah Decoder shows ads.

### Which is updated more often, Radio Messenger or DitDah Decoder?

Radio Messenger ships an update every 3 weeks, and DitDah Decoder monthly. Most recently, Radio Messenger was updated on October 7, 2026 and DitDah Decoder on October 2, 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.*