Sprint Timer vs Sprint Start Trainer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sprint Timer
This app functions as a starter and stopwatch for track events. It allows users to customize starting commands and measure race times, with options for randomized timing and saving recorded data. It's ideal for practice sessions or when official starters are unavailable.
- Customizable start commands
- Randomized SET to pistol timing
- Save and view measured times
- Adjustable distance settings
- Color customization for timer and background
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Starter & stopwatch app for track. It can be used for practicing the starting race command or to help you measure your time. Please use it for club activities or when there is no one in charge of starting the race. ● Basic functions 1. Starter You can set the time from ON YOUR MARK to SET and from SET to pistol sound as you like. The time from SET to pistol sound can also be randomized. 2. Time recording Measured times can be saved. Saved times can be viewed by date. 3. Distance setting Tap the distance to change it. In the initial display, 100m is set. 4. Color settings The background color and timer color can be changed.
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 rating: Sprint Start Trainer at 4.9 against Sprint Timer's 4.3. Sprint Start Trainer also leads on review sentiment (90% vs 75%) and ratings volume (16 vs 4). Sprint Timer's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 18.0). On price, update cadence, 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. Sprint Timer sells 2 one-off in-app purchases and Sprint Start Trainer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Sprint Start Trainer holds the better App Store score, 4.9 against 4.3. Both are backed by a comparable volume of ratings — 4 and 16 respectively. Written reviews point the same way: 75% of Sprint Timer's written reviews are positive against 90% of Sprint Start Trainer's.
Sprint Timer ships an update monthly, Sprint Start Trainer every 3 weeks. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.
| Parameter | Sprint Timer | Sprint Start Trainer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (4 ratings) | 4.9 (16 ratings) — better |
| Positive reviews | 75.0% of reviews | 90.0% of reviews — better |
| Number of ratings | 4 | 16 — better |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 34 MB | 27 MB |
| Age rating | 17+ | 4+ |
| Developer | NAOYA ONO | Koki Osada |
Customer experience
Sprint Timer
Sprint Start Trainer
In-app purchases
Sprint Timer
- Support Developer$0.99
- Remove ads$9.99
Sprint Start Trainer
- Remove Ads$4.99
Questions
Is Sprint Timer free?
Is Sprint Start Trainer free?
Which has better reviews, Sprint Timer or Sprint Start Trainer?
Do Sprint Timer or Sprint Start Trainer have ads?
Which is updated more often, Sprint Timer or Sprint Start Trainer?
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