# SimpleSSTV vs PhosphorSSTV

The clearest difference is review sentiment: SimpleSSTV at 73% against PhosphorSSTV's 0%. SimpleSSTV also leads on price (Free vs $0.99) and update cadence (monthly vs every 5 months). PhosphorSSTV's advantage is in-app purchases (none vs 6). On ads and iOS requirement there is nothing between them.

SimpleSSTV is free to download; PhosphorSSTV costs $0.99 up front. SimpleSSTV sells 6 one-off in-app purchases. PhosphorSSTV asks for nothing beyond the download.

SimpleSSTV ships an update monthly, PhosphorSSTV every 5 months. The most recent releases landed on September 21, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | SimpleSSTV | PhosphorSSTV |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/simplesstv/id6756872709/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | **73.3% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 months |
| Monetization | **Free** | Paid |
| Size | 5 MB | 3 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jeroen Rombouts](https://appshunter.io/developer/1863358112) | [Stuart Woolley](https://appshunter.io/developer/315697638) |

## What reviewers say

### SimpleSSTV

[App page](https://appshunter.io/ios/app/simplesstv/id6756872709)

This app allows ham radio operators to encode images into audio signals for transmission and decode received audio back into images. It supports various SSTV modes, live camera feeds, and even AI-generated QSL cards. Receive alerts for International Space Station SSTV events.

**Highlights:** Encode images to SSTV audio, Decode SSTV audio to images, Live camera feed with trigger modes, Support for 14 SSTV modes, AI-generated QSL calling cards, ISS SSTV event notifications, Audio setup and troubleshooting tips

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Listening Station Mode | $1.99 | one-time |
| 10 AI Card Credits | $1.99 | one-time |
| Remove or change encoder watermark | $2.99 | one-time |
| SimpleSSTV Pro | $3.99 | one-time |
| 30 AI Card Credits | $3.99 | one-time |
| 120 AI Card Credits | $8.99 | one-time |


### PhosphorSSTV

[App page](https://appshunter.io/ios/app/phosphorsstv/id6761005542)

Decode Slow Scan Television (SSTV) signals in real time using your iPhone's microphone. This app transforms audio tones into images, recreating the retro aesthetic of vintage monitors. It supports ten SSTV modes and offers advanced signal analysis tools.

**Highlights:** Real-time SSTV signal decoding, Supports ten SSTV modes, Authentic CRT display aesthetic, Live FFT spectrum analysis, Automatic VIS code detection, Image logging with metadata

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

**In-app purchases:** none


## Frequently asked questions

### Is SimpleSSTV free?

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

### Is PhosphorSSTV free?

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

### Do SimpleSSTV or PhosphorSSTV have ads?

Neither SimpleSSTV nor PhosphorSSTV shows ads.

### Which is updated more often, SimpleSSTV or PhosphorSSTV?

SimpleSSTV ships an update monthly, and PhosphorSSTV every 5 months. Most recently, SimpleSSTV was updated on September 21, 2026 and PhosphorSSTV on September 5, 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.*