Comparison

ADR System vs RSP App

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ADR System

Monitor and optimize strength training and jump assessments wirelessly via Bluetooth. Quickly view athlete performance data, measure key metrics like reactive strength index and estimated 1RM, and create custom load-velocity profiles. Manage multiple athletes with unlimited free storage.

Highlights
  • Wireless Bluetooth connectivity
  • Strength and jump performance monitoring
  • Reactive strength index measurement
  • Estimated daily 1RM calculation
  • Jump height and flight time tracking
  • Customizable load-velocity profiles
  • Athlete profile management
Features
Read full description

ADR System es una aplicación diseñada para conectarse de forma inalámbrica mediante Bluetooth a tus dispositivos ADR Encoder y ADR Jumping, facilitando el monitoreo y la optimización de tus entrenamientos de fuerza y valoraciones de salto. Dispón en tu teléfono móvil de toda la información sobre el rendimiento de tus deportistas de manera rápida y visual. Esta aplicación integra los datos de ADR Encoder y ADR Jumping en una única plataforma, permitiéndote medir métricas clave como el índice de fuerza reactiva, el 1RM estimado diario, el tiempo de vuelo o la altura de salto. También podrás crear perfiles carga-velocidad personalizados, guardar tus entrenamientos y gestionar múltiples atletas con facilidad. Todo esto sin límite de almacenamiento y de forma totalmente gratuita.

About

RSP App

Features
Read full description

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

Screenshots

ADR System4 screens
RSP App4 screens

Verdict

The call

The clearest difference is update cadence: RSP App at every 2 months against ADR System's every 7 months. RSP App also leads on iOS requirement (13.0 vs 17.6). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ADR System ships an update every 7 months, RSP App every 2 months. The most recent releases landed on September 7, 2026 and September 9, 2026 respectively.

Scorecard2 real differences · 6 level
ADR System versus RSP App: the parameters behind the verdict, then further details
ParameterADR SystemRSP App
PriceFreeFree
Positive reviews44.4% of reviews—
Update frequencyEvery 7 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.613.0 — better
Further details — not scored
Size18 MB23 MB
Age rating4+4+
DeveloperLucia Escobar MoralesInercial Performance Sl.

In-app purchases

None

ADR System

No in-app purchases

None

RSP App

No in-app purchases

Questions

Is ADR System free?
ADR System is free to download, with no in-app purchases.
Is RSP App free?
RSP App is free to download, with no in-app purchases.
Do ADR System or RSP App have ads?
Neither ADR System nor RSP App shows ads.
Which is updated more often, ADR System or RSP App?
ADR System ships an update every 7 months, and RSP App every 2 months. Most recently, ADR System was updated on September 7, 2026 and RSP App on September 9, 2026.

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