FabulaRosa vs RST Scope
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FabulaRosa
This app generates unique, high-definition passwords based on a personal image, color, and direction. It offers secure and simplified login management with support for long passwords and QR codes for touchless authentication.
- Image-based password generation
- High-definition passwords
- Up to 850 character passwords
- Time-based disguised passwords
- QR-Codes for touchless authentication
- Independence from third parties
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Description Universal authentication app – High Definition passwords are repeatedly generated at the point of drawing your image. Secure and simplify the overflow of your logins. You will be able to create many different passwords by applying one image only existing in your mind. The safest place is in your mind! With FabulaRosa you'll get •different passwords for different accounts •up to 850 characters taken from the UTF16 character set including (65,535 characters), •time-based disguised passwords •QR-Codes for touchless secure authentication You only have to do four steps: •Choose an addressee (account), which is the recipient of you logins, i.e. a worldwide booksellers or an airline. •Choose a colour. •Choose a direction. •Draw your image on a virtual compass rose. Use of the advantages: •Independence of Third Parties - Only you possess the Image in Your Mind! •Anonymity - You can change the Image in Your Mind when you want! •Individuality - The Image in Your Mind is your image only!
RST Scope
This utility app provides spectrum scope and waterfall displays for amateur radio operators. It enhances radios lacking these features by analyzing microphone input, allowing for clear distinction of Morse code and detailed audio frequency visualization.
- Spectrum scope and waterfall display
- Morse code distinction via FFT
- Adjustable waterfall speed
- Adjustable audio input level
- Switchable display band (wide/narrow)
- Display pause function
- Recording and playback of input sound
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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. Function to switch the cross hatch ON / OFF by longTap 6. Frequency resolution is fixed at 40Hz. 7. Function to switch the USB/LSB by Left/Right Swipe 8.Recording/Playback function of Input Sound RST Scope(Free) https://www.youtube.com/watch?v=1s9RvOFp52g
Screenshots
Verdict
The clearest difference is ads: FabulaRosa at none against RST Scope's shown. FabulaRosa also leads on monetization model (free vs ad-supported). RST Scope's advantage is update cadence (every 3 days vs every 6 months). On price, in-app purchases, device support and iOS requirement 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
FabulaRosa ships an update every 6 months, RST Scope every 3 days. The most recent releases landed on October 8, 2026 and October 13, 2026 respectively.
| Parameter | FabulaRosa | RST Scope |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Every 6 months | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 32 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | KikuSema GmbH | koji kamogawa |
Customer experience
FabulaRosa
RST Scope
In-app purchases
FabulaRosa
No in-app purchases
RST Scope
No in-app purchases









