RST Scope Pro vs Air
Price, ratings, monetisation and update history for both apps, side by side â with what reviewers say about each.
RST Scope Pro
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This is an app for amateur radio operators with a narrow band of audio frequency, spectrum scope & waterfall display. You can get a rich display by microphone inputting the speaker output of a radio that does not have a spectrum scope or waterfall function. The FFT allows you to distinguish between the dot and dash of Morse code. [function] 1. Ability to change the speed of the waterfall 2. Ability to adjust the level of audio input 3. Function to switch the display band between wide and narrow 4. Display pause function (pause / cancel by touching the screen) 5. Display scaling for iPhone Display size. 6. Function to switch frequency resolution.(40Hz/20Hz/10Hz) 7. Function to switch between bar graph and line graph 8. Function to switch the cross hatch ON / OFF by longTap 9. Function to switch the USB/LSB by Left/Right Swipe 10.Recording/Playback function of Input Sound 11.File Listing function RST Scope(Free) https://www.youtube.com/watch?v=1s9RvOFp52g
Air
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Screenshots
Verdict
The clearest difference is price: Air at Free against RST Scope Pro's $1.99. Air also leads on iOS requirement (13.0 vs 15.6). RST Scope Pro's advantage is update cadence (every 6 days vs every 5 months). On ads, in-app purchases and device support there is nothing between them.
Scored on Price ¡ Rating ¡ Positive reviews ¡ Number of ratings ¡ Update frequency ¡ Ads ¡ In-app purchases ¡ Monetization ¡ Best chart rank ¡ Devices ¡ Requires iOS
Air is free to download; RST Scope Pro costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
RST Scope Pro ships an update every 6 days, Air every 5 months. The most recent releases landed on October 27, 2026 and October 13, 2026 respectively.
| Parameter | RST Scope Pro | Air |
|---|---|---|
| Price | $1.99 | Free â better |
| Update frequency | Every 6 days â better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod â better |
| Requires iOS | 15.6 | 13.0 â better |
| Further details â not scored | ||
| Size | 1 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | koji kamogawa | ALINCO |
In-app purchases
RST Scope Pro
No in-app purchases
Air
No in-app purchases
