# Video Sprint Timer

> Frame-by-frame sprint timing

Canonical page: [https://chrome-stats.com/d/id6803257005](https://chrome-stats.com/d/id6803257005)

## Overview

- **ID:** `id6803257005`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Japan Running Promotion Organization
- **Category:** Sports
- **Version:** 1.2
- **Last updated:** 2026-09-02
- **First published:** 2026-09-02
- **Size:** 3.33 MB
- **Data as of:** 2026-09-19
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/video-sprint-timer/id6803257005)
- **Website:** [https://timer.jrpo.jp/](https://timer.jrpo.jp/)
- **Privacy policy:** [https://timer.jrpo.jp/privacy.html](https://timer.jrpo.jp/privacy.html)

## Description

Measure sprint split times from video you shoot on your phone. No more stopwatch reaction-time errors - step through the footage frame by frame and confirm every time with your own eyes.

- Frame-by-frame timing you can trust
Step through the video one frame at a time and mark the exact start and finish moments. Set the recording frame rate (30/60/120/240fps) and get times down to 1/240 of a second per frame.

- Two measurement modes
Photo Finish (finish times): mark the start, then record each runner's torso crossing the line. Multiple runners are ranked automatically.
Split Timing (laps/splits): add marks at each checkpoint to get split and cumulative times. Enter distance and step count to see cadence (steps/s), stride length (m/step), and section speed (m/s).

- Record right in the app
Shoot with the built-in camera and go straight to measurement. 60fps and 120fps recording is available on supported devices.

- Stopwatch for hand timing
A stopwatch with large, easy-to-press buttons for the track. Record laps and save sessions with titles on your device.

- CSV export
Export results as CSV via the share sheet to Files, email, and more. Opens directly in spreadsheet apps.

- No login, data stays on your device
No account needed. Videos and results are processed and stored only on your device and never sent to external servers.

Note: events that happen between two frames cannot be distinguished. Record at a higher frame rate for finer detail.

- Pro features (one-time purchase)
An in-app purchase unlocks tools that make measuring faster and more precise:
* Auto start-signal detection: finds the flash, smoke, or arm-drop frame automatically
* Auto crossing detection: finds finish frames automatically
* Auto Zoom: register start and finish zoom levels and the zoom changes smoothly while recording
* Tracking Zoom: tap a runner to keep them the same size on screen
* Contact and flight time: per-step timing in milliseconds
* Athlete roster and heat sheets: name suggestions and lane-number auto-fill
* Report export: share results as a single image
* Speed Curve: graphs speed by section
All basic measurement features remain free.

## Rankings

- #1,481,534 — Overall

## Similar extensions and apps

- [Explosive Sprint Timer](https://chrome-stats.com/d/id6757598032) — 1.00 / 5
- [SprintLens](https://chrome-stats.com/d/id6773487217)
- [TrackSpeed: Sprint Timer](https://chrome-stats.com/d/id6757509163) — 3.00 / 5
- [Sprint Timer: 40yd 100m Race](https://chrome-stats.com/d/id6761255021) — 5.00 / 5
- [DrivePhase - Sprint Analysis](https://chrome-stats.com/d/id6761478942) — 4.90 / 5
- [Photo Finish: Automatic Timing](https://chrome-stats.com/d/id6477607305) — 4.30 / 5
- [Sprint Start Recorder](https://chrome-stats.com/d/id6748664830) — 5.00 / 5
- [SprintTimer - Photo Finish](https://chrome-stats.com/d/id430807521) — 4.40 / 5
- [Sprint App - Automatic stopwatch](https://chrome-stats.com/d/id875840775) — 2.00 / 5
- [Sprint | Motion Trials](https://chrome-stats.com/d/id1616380802)
- [Perfect Stopwatch](https://chrome-stats.com/d/id1598567322) — 4.60 / 5
- [BolTimer](https://chrome-stats.com/d/id6785223452)

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6803257005)