CONTACT CIRCUIT vs RST Scope
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CONTACT CIRCUIT
This app provides a comprehensive solution for managing contacts, ensuring information is up-to-date and complete. It features unique identifiers and a public directory to enhance professional and business visibility and growth.
- Eliminates outdated contact information
- Unique Career Footprint CID#
- Public Circuit Directory
- Business Dashboard for administration
- Increases professional visibility
- Facilitates business growth
Read full descriptionHide full description
CONTACT CIRCUIT offers a definitive solution for social, professional and business-critical challenges of currently available contact management tools by eliminating; outdated, polluted and incomplete contact information. With innovative facilities such as the career footprint “Unique CID#”, the public source “Circuit Directory” and administrative “Business Dashboard”; it offers sustainable contact management solutions and helps professionals and businesses increase their visibility and grow their business…
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
Read full descriptionHide full description
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: CONTACT CIRCUIT at none against RST Scope's shown. CONTACT CIRCUIT also leads on monetization model (free vs ad-supported) and iOS requirement (13.0 vs 15.6). RST Scope's advantage is update cadence (every 3 days vs every 2 months). On price, rating, ratings volume and in-app purchases 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.
On the App Store both sit at effectively the same score — 5.0 for CONTACT CIRCUIT against 5.0 for RST Scope. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
CONTACT CIRCUIT ships an update every 2 months, RST Scope every 3 days. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.
| Parameter | CONTACT CIRCUIT | RST Scope |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 2 months | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 89 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | CONTACT CIRCUIT | koji kamogawa |
Customer experience
CONTACT CIRCUIT
RST Scope
In-app purchases
CONTACT CIRCUIT
No in-app purchases
RST Scope
No in-app purchases
