RSP App vs RPLab Coach
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RSP App
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RSP APP: High-Performance Training Application The digital extension of the Isoinertial (Eccentric) machines manufactured by einercial.com. RSP APP measures training performance in real-time via a Bluetooth streaming data connection. Performance is measured in power output (watts) and work cycles. Using these two indicators, the app provides users with valuable insights into their machine usage and performance. Users can save and review their training history. The app includes presets for each of the three machines that feature the hardware connection terminal. HOW DOES IT WORK? The system consists of a hardware component connected to the machine (compatible with any model from the manufacturer). This hardware is a rotary encoder, a high-tech device capable of registering up to 1,000 points per rotation of the yo-yo. On the other end, the app receives and processes this data. Let’s dive into the details: THE ROTARY ENCODER • Completely wireless: The RSP encoder is designed with ergonomics and usability in mind. • Long-lasting battery: It features a rechargeable battery with a standard female mini USB connector for charging with any standard mobile charger. EASY INSTALLATION ON RSP MACHINES: JUST CONNECT AND GO The encoder fits all RSP machines. It attaches using three small standard screws. DATA TRANSMISSION VIA BLUETOOTH The connection to the app is through Bluetooth, ensuring a fast and reliable link. The encoder sends data to the app, allowing you to move up to 15 meters away—ideal for trainers. BASIC WORKFLOW WITH THE APP 1. CONNECT THE APP TO A MACHINE Once the encoder is turned on and Bluetooth is enabled on your phone, the app will detect the signal and prompt you to select a machine. It will also request mass (weight) configuration. Once both are confirmed, you can start training. 2. START TRAINING: COACH MODE Another option, particularly useful for personal trainers or gym instructors, is to register multiple athletes in the same session. You can add as many as needed, recording the strength values for each individual and creating a comprehensive session history. 3. REAL-TIME PERFORMANCE MONITORING The app displays the machine and its selected mass configuration on the screen. It also shows real-time performance data, including power per cycle, time, power output, and other session details—all live on your screen. OTHER TRAINING MODES FOR HIGH-PERFORMANCE CIRCUITS Once familiar with the machine and its limitations, you can choose a training mode based on power ranges. The app leverages session history to provide data on strength ratios, best performances, and their correlation with lower scores. With this information, you can select training modes based on maximum and minimum power ranges, challenging yourself to stay within the interval. RSP Inertial Performance | Tools for Athletes
RPLab Coach
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RPLab Coach is a precision stopwatch and split tracking tool built for coaches working with race pace targets. Designed for real training environments — gives you instant feedback of actual race pace (RP) splits, stroke rate (SR) & deviations WORK WITH TARGET SPLITS Load race pace targets and monitor performance in real time. • Track actual vs target splits • Instant deviation feedback • Lap and cumulative split tracking • Clear, structured split overview PURPOSE-BUILT STOPWATCH A stopwatch designed for coaching workflows — not generic timing. • Large, daylight-readable display • One-tap split recording • Automatic target progression • Time Trial session history PERFORMANCE INSIGHT Capture key data during sessions. • Stroke rate (SR) logging • Split-by-split breakdown • Deviation analysis SESSION MANAGEMENT Organize and reuse your sessions. • Save and review sessions • Load past sessions as new targets • Copy and export sessions (PDF) • Add notes, conditions, and context BUILT FOR RPLAB APP RPLab Coach integrates seamlessly with RPLab app. • Import targets via clipboard • Designed as a complete coaching workflow • No setup, no accounts PRIVATE BY DESIGN • No accounts • No tracking • No data collection Everything stays on your device. Developed by Gergely Gyertyános — World Champion athlete and high performance coach.
Screenshots
Verdict
The clearest difference is update cadence: RSP App at every 2 months against RPLab Coach's every 5 months. RSP App also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.6). On price, ads 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.
RSP App ships an update every 2 months, RPLab Coach every 5 months. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.
| Parameter | RSP App | RPLab Coach |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 23 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Inercial Performance Sl. | Gergely Gyertyanos |
In-app purchases
RSP App
No in-app purchases
RPLab Coach
No in-app purchases









