Racing Start Simulator vs Sprint Start Trainer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Racing Start Simulator
This app helps you train for various sports by simulating race starts. It measures your reaction time and performance, allowing you to track progress and improve your speed. Choose from multiple sports and control methods to optimize your training.
- Pro Mode with voice control
- Multiple sports simulations (BMX, Sprint, Ski Cross, etc.)
- Measures reaction time and race time
- Tracks previous results
- False start detection
- Adjustable delay and sensitivity
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1. In Pro Mode, choose your sport (Sprint is Free by Default), button or voice control (Pro Mode only), delay and sensitivity. 2. Press "Ready To Race". 3. Start the App with your voice(Pro Mode) or by pressing "Start". 4. When you hear the main signal, do your thing as fast as you can and then press Stop (or Say Stop in Voice Pro Mode), when your racing is done to see what time you've achieved, and reaction time. 5. When you hear the signal of departure, move the phone in any direction, to see how fast you react. If you move the phone before the signal you will have a false start detected and shown on screen. 6.See your 10 previous Results all the time. 5. Look at your time, and try to beat it by restarting. The time between the warning and the signal depends on the sport selected. The time itself always have a max coresponding to the sport: Ice Cross (in between 2 to 5 seconds) Snowboard Cross (in between 2 to 5 seconds) Ski Cross (in between 1 to 3 seconds) Horse Racing (in between 2 to 5 seconds) Sprint (in between 0.8 to 1.5 second) Swim (in between 0.5 to 3 second) Rowing (in between 1.5 to 3 second) Kayak (in between 1.5 to 3 second) Motocross (in between 1.5 to 3 second) BMX (in between 0.1 to 2.7 second) Speed Skating (in between 0.8 to 1.5 second)
Sprint Start Trainer
This app provides tools for solo athletic training, offering customizable interval settings for voice cues like "on your marks," "set," and a pistol sound. It features random timing starts with detailed configuration options to simulate various race scenarios.
- Customizable interval settings
- Voice cues (on your marks, set, pistol)
- Random timing start
- Detailed timing configuration
- Simulates various race scenarios
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Practice track sprint and swimming starts with just one phone. Starter Kit is a start-training app for sprinters, swimmers, and coaches. It does more than play start signals: it lets you measure reaction time on video and review start technique. In Timing and Random modes, each video frame displays the time relative to the moment the start sound plays, with that moment set to zero. Read the displayed time on the frame where the athlete first moves to measure reaction time, then review technique in the same video. With fixed or randomized signal intervals, you can practice track block starts and swimming dive starts on your own or with a team. WHO IS IT FOR? • 100 m and 200 m sprinters • Track athletes who want to practice block starts • Swimmers who want to practice dive starts and improve their response to the start signal • Track-and-field coaches and swimming coaches running start drills • Athletes who want to improve reaction time and start technique KEY FEATURES ■ Video reaction-time measurement and technique review In Timing and Random modes, Starter Kit adds a timer to every video frame, using the start signal as zero. Read the value displayed on the frame showing the athlete's first visible movement to measure reaction time and review start technique. Videos can be saved to Photos, and recording can continue for up to 90 seconds after the start sound finishes. With up to 90 seconds of recording, you can also use the on-video timer to measure an accurate start-to-finish time. ■ Three start signal sounds Choose a pistol sound, swimming start beep, or electronic start sound to match your sport or training session. The swimming beep makes Starter Kit useful for swimming start practice as well as track sprint starts. ■ Timing mode: fixed intervals Set the timing between “On your marks,” “Set,” and the start signal. Repeat the same start sequence for individual or team practice. ■ Random mode: randomized intervals Randomize the intervals between “On your marks,” “Set,” and the start signal. The timing varies within your chosen range so athletes can practice reacting without anticipating the signal. ■ Manual mode: individual cues Play “On your marks,” “Set,” and the start signal separately. Use it for coach-led or group drills, or play the swimming start beep on its own at the pool. ■ Automatic repeat starts In Timing and Random modes, run start sequences repeatedly at an adjustable interval for efficient practice sets. Starter Kit turns your phone into a portable start-training tool for the track or poolside—no dedicated starting system required. Automatic repeat starts and custom recording durations require an upgrade.
Screenshots
Verdict
The clearest difference is ads: Racing Start Simulator at none against Sprint Start Trainer's shown. Racing Start Simulator also leads on monetization model (free vs free with in-app purchases) and review sentiment (100% vs 90%). Sprint Start Trainer's advantage is update cadence (every 3 weeks vs every 4 months). On price 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. Racing Start Simulator sells 1 one-off in-app purchase and Sprint Start Trainer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Racing Start Simulator ships an update every 4 months, Sprint Start Trainer every 3 weeks. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.
| Parameter | Racing Start Simulator | Sprint Start Trainer |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.9 (15 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 90.0% of reviews |
| Number of ratings | — | 15 — better |
| Update frequency | Every 4 months | Every 3 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 153 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Laurent Goulet Garneau | Koki Osada |
Customer experience
Racing Start Simulator
Sprint Start Trainer
In-app purchases
Racing Start Simulator
- Unlock Pro Features$2.99
Sprint Start Trainer
- Remove Ads$4.99
Questions
Is Racing Start Simulator free?
Is Sprint Start Trainer free?
Do Racing Start Simulator or Sprint Start Trainer have ads?
Which is updated more often, Racing Start Simulator or Sprint Start Trainer?
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