# SprintStart — Sprint Block Performance

> Sprint and race start training tool with reaction time measurement and iCloud sync. (iPhone/iPad app by warmwinds software.)

- Source: https://appshunter.io/ios/app/sprintstart/id6451347398 (this page in markdown: same URL + `.md`)
- Developer: [warmwinds software](https://appshunter.io/developer/360264313)
- Category: Health & Fitness, Sports
- Price: $2.99
- Age rating: 4+
- Requires: iOS 26.0 · 3 MB
- Languages: American English
- Released: 2023-09-18
- Data updated: 2026-08-24
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/sprintstart/id6451347398/reviews.md

## What is SprintStart?

SprintStart for Sprint Block Performance is the leading tool for your sprint and race start training. Using our sprinting start optimized app, your iPhone and Apple Watch can call the starting sequence and start your race. Record, sync, and share your start training sessions.

WIth our reaction time measurement, your response to the starting sound helps you track your performance out of the blocks and off the line. Using your device's acceleration sensors, your reaction time is recorded and displayed, and synchronized via iCloud to all your devices using SprintStart.

Trigger a start from the app, from Siri, a shortcut, and your Apple Watch Ultra's Action button.

SprintStart - Designed and built by a USATF Level 1 Coach and Masters-level sprint competitor, SprintStart has been track-tested from block, 3-point, and standing starts. You cannot get more convenient, or useful, than SprintStart. See you at the blocks!

Features:
- Clear voice calling of the starting sequence.
- Customized intervals between start commands to model the race environment.
- Start from the "bang" or a clear starting tone as your "go" sound.
- Uses your device's accelerometer to detect reaction time to the "go" command - and adjustable sensitivity helps ensure you get accurate reaction measurements no matter which device or how you might be carrying or wearing it.
- Optionally, display your reaction time at end of each start - your reaction time is always saved.
- Export reaction times, dates, and heart rate (available on Apple Watch app) as a CSV to track your training performance over time.
- Chart your reaction times for your sprint session right on your device - iPhone or Watch!
- Synchronizes start & reaction information via iCloud, accessible on all your devices using SprintStart.
- Apple Watch app uses haptic taps along with the voice commands.
- Works GREAT with AirPods (especially the Watch app) - eliminate distractions and focus on your training!

## Key features

- Initiate starting sequences via app, Siri, or Apple Watch
- Measure reaction time using device accelerometers
- Record, sync, and share training sessions
- Customizable intervals and starting tones
- Export reaction times and heart rate data
- Visualize reaction times with charts

## Chart rankings

- #170 in Top Paid · Health & Fitness (US App Store)

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/sprintstart/id6451347398/reviews.md

### 5/5 — Good app

*2024-06-10*

Good app however maybe there could be more customisation. I also despise the robot voice maybe you could’ve used the Olympic voice? And make the get set say just set. Other from that good app.

**Developer response:** My apologies for the long delay in responding.

Thank you so much for your feedback! I'd love to know more about the customizations you'd like to see. Please reach out here or at https://www.warmwindssoftware.com/contact.

I will address the "Set" call - thank you for mentioning that; I will honor the standard.

And regarding the voices - I'm at the mercy of iOS and watchOS's built-in speech synthesizer.

Again, thank you!

## Frequently asked questions about SprintStart

### What is SprintStart used for?

SprintStart is used for training sprint and race starts. It helps athletes measure their reaction time to starting commands and track their performance over time.

### How does SprintStart measure reaction time?

SprintStart uses your device's accelerometer to detect your reaction to the 'go' command. The sensitivity can be adjusted for accurate measurements.

### What devices does SprintStart support?

SprintStart is available for iPhone and iPad, and includes an Apple Watch app for enhanced functionality.

### Can I share my training data with SprintStart?

Yes, you can export your reaction times, dates, and heart rate data as a CSV file to track your progress and share with coaches or training partners.

### How often is SprintStart updated?

The latest version of SprintStart is 1.7.0, and it was last updated on August 25, 2025. Updates typically include performance improvements and new features.

### What is the price of SprintStart?

SprintStart is a paid application and costs $2.99. There are no in-app purchases or subscriptions required.

### Does SprintStart have ads?

No, SprintStart does not contain advertisements. It is a completely ad-free experience designed for focused training.

### How does SprintStart sync data across devices?

SprintStart utilizes iCloud to synchronize your start and reaction information across all your Apple devices where the app is installed.

## Version history (last 5 releases)

### 1.7.1 — 2026-06-17

Minor tweaks, and the starting sequence uses "Set" instead of "Get Set".

### 1.7.0 — 2025-08-25

• New watchOS and iOS Widgets!
Put SprintStart on your watch face and home screens for instant access and see your most recent reaction time

• Performance improvements!

### 1.6.0 — 2024-10-13

1.6.0 October 2024

See your current or most recent session in a snap, with your average reaction time and average heart rate, from the handy toolbar button.

Also:

- Fixed a crash when tapping the Sessions button.

### 1.5.0 — 2024-07-18

In celebration of the start of the USATF Masters Outdoor Championship meet this week, we're releasing a big update to SprintStart - with Charting!

For your start sessions, tap the chart button to see a handy graph representing your start reaction times. On iPhone, you can see a chart of any day (session). On Apple Watch, you'll see the chart from the latest session.

Also:

- False start (less than .1s reaction) tracking and alerts
- Better management of audio sessions

### 1.0.2 — 2024-04-23

New Sharing Options
- Share all, or just latest session
- Share individual sessions

Fixes
- Fixed a silent crash when data is synchronized with iCloud
- Fixed an issue with the "Show Reaction Time" setting not saving correctly
- Fixed case where if there was no start recorded, the workout tracking heart rate was not stopped

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## More apps by warmwinds software

- [TapeTime](https://appshunter.io/ios/app/tapetime/id1555762469)

All apps by warmwinds software: https://appshunter.io/developer/360264313

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*