RTR vs Eidetic Notes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RTR
Measure your internet connection's speed, ping, and signal strength. It also tests quality parameters like VoIP and web page loading. View results on a map and analyze historical data.
- Internet speed testing (upload, download, ping)
- Quality parameter testing (VoIP, web page)
- Signal strength measurement
- Map view of test results
- Historical data analysis
- Automatic test repetition (loop mode)
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In addition to the speed of your current Internet connection (upload, download, ping, signal strength) the RTR-NetTest (in German: RTR-Netztest) also measures a number of quality parameters (VoIP, unmodified content, web page, transparent connection, DNS, ports). The RTR-NetTest was developed by the Austrian telecom-regulator, the Regulatory Authority for Broadcasting and Telecommunications (RTR). The source code of the app is available as open source at https://github.com/rtr-nettest/open-rmbt-ios . The start page provides information about the cellular or WLAN connection. The RTR-NetTest is carried out by pressing the "START" button. If the loop mode has been activated, the "LOOP" button will appear instead of the “START” button. The loop mode enables the RTR-NetTest to be repeated automatically. The tests will start as soon as the waiting time has elapsed or the specified distance has been covered. The results of the RTR-NetTests are available as Open Data (https://www.netztest.at/en/Opendata ) and are shown in the map view as heatmap or as coloured dots. In addition, there are additional options to filter the results according to various criteria. You can tap each measuring point for more details. The RTR-NetTest app includes: · the possibility to retrieve one’s own test results and to synchronize the results of different end devices and to display them in the browser ("history") · a map view of all test results with filter options by measurement parameters, statistics, Internet providers, end device and period of time (“map”) · the option to repeat tests automatically (loop mode) · the display of the five most recent tests, statistics on the results of the Internet providers and all end devices / browsers used with filter options by quantile, measurement parameters and measurement period ("statistics") · quality parameters (e.g. signal strength, connectivity on different ports, changes in data transmission, transmission time for a reference website) · a traffic light assessment of the measurement results detailed FAQ list is available at https://www.netztest.at/redirect/de/help
Eidetic Notes
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Eidetic Notes is a focused mental math training app designed to build calculation speed and accuracy through structured, progressive challenges. **Stage Mode** 200 levels organized across 10 stages of increasing difficulty. Each stage introduces harder arithmetic operations — from single-digit addition to multi-digit mixed operations. Exam levels appear every 20 levels to validate your mastery before advancing. **Custom Practice** Configure your own training sessions. Choose from four operation types — Addition, Subtraction, Multiplication, and Division. Set the digit range, question count, and per-question time limit to match your current skill level. **Statistics** Track your progress with detailed analytics. View total questions answered, accuracy rate, practice time, streak count, and a weekly performance chart to identify areas for improvement. **Settings** Toggle sound effects and haptic feedback. Reset level progress or all data at any time. Eidetic Notes runs entirely offline with no ads, no subscriptions, and no network required. Just open the app and start practicing.
Screenshots
Verdict
The clearest difference is ads: RTR at none against Eidetic Notes's shown. Eidetic Notes's advantage is update cadence (every 2 weeks vs every 6 weeks) and iOS requirement (15.0 vs 17.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
RTR ships an update every 6 weeks, Eidetic Notes every 2 weeks. The most recent releases landed on September 27, 2026 and September 28, 2026 respectively.
| Parameter | RTR | Eidetic Notes |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 weeks | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | RTR-GmbH | 能辉 黄 |
In-app purchases
RTR
No in-app purchases
Eidetic Notes
No in-app purchases
Questions
Is RTR free?
Is Eidetic Notes free?
Do RTR or Eidetic Notes have ads?
Which is updated more often, RTR or Eidetic Notes?
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