# PhosphorRTTY vs SimpleFT8

The clearest difference is price: SimpleFT8 at Free against PhosphorRTTY's $0.99. SimpleFT8 also leads on device support (3 vs 1) and iOS requirement (17.0 vs 26.2). PhosphorRTTY's advantage is in-app purchases (none vs 1). On review sentiment and ads there is nothing between them.

SimpleFT8 is free to download; PhosphorRTTY costs $0.99 up front. SimpleFT8 sells 1 one-off in-app purchase. PhosphorRTTY asks for nothing beyond the download.

## The numbers

| Metric | PhosphorRTTY | SimpleFT8 |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 days |
| Monetization | Paid | **Free** |
| Size | 3 MB | 6 MB |
| Requires iOS | 26.2 | **17.0** |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Stuart Woolley](https://appshunter.io/developer/315697638) | [Jeroen Rombouts](https://appshunter.io/developer/1863358112) |

## What reviewers say

### PhosphorRTTY

[App page](https://appshunter.io/ios/app/phosphorrtty/id6760180586)

Decode Radio Teletype (RTTY) signals in real time using your iPhone's microphone. Listen to shortwave radio transmissions and see the text appear on an authentic phosphor CRT display. No internet or external hardware needed.

**Highlights:** Real-time RTTY signal decoding, Authentic phosphor CRT display, Automatic signal detection (AFC, baud, shift), Manual tuning options, Live signal analysis (FFT, waterfall), Session logging and sharing, Customizable display themes

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

**In-app purchases:** none


### SimpleFT8

[App page](https://appshunter.io/ios/app/simpleft8/id6768739415)

This app enables ham radio operators to send and receive digital signals using FT8 and FT4 modes. It facilitates long-distance communication even in challenging conditions, allowing for local logging and optional global propagation mapping.

**Highlights:** Live decode table, Slot-aligned transmitter with QSO composer, Built-in waterfall display, Local QSO logbook with ADIF export, Map of decoded stations, Optional PSK Reporter integration

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SimpleFT8 Pro | $3.99 | one-time |


## Frequently asked questions

### Is PhosphorRTTY free?

PhosphorRTTY costs $0.99, with no in-app purchases.

### Is SimpleFT8 free?

SimpleFT8 is free to download, with in-app purchases available.

### Do PhosphorRTTY or SimpleFT8 have ads?

Neither PhosphorRTTY nor SimpleFT8 shows ads.

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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.*