SprintLens

SprintLens

Sprint Photo Finish Timer

0 ratings
1 review
Free
In-App Purchases

Details

  • Released
  • Updated
  • June 20, 2026
  • September 14, 2026

Features

SprintLens screenshot #1 for iPhone
SprintLens screenshot #2 for iPhone
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About

This app uses two smartphones to provide accurate photo finish timing for sports like track and field and swimming. It records high-frame-rate video at the finish line, allowing for frame-by-frame review to determine precise race times without specialized equipment.

✓Two-smartphone timing setup
✓Start signal synchronization
✓High-frame-rate finish video
✓Frame-by-frame finish review
✓Accurate race time measurement
✓No dedicated equipment needed
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What's New in SprintLens

1.0.4

September 14, 2026

Improved auto start and screen readability.

2

Subscriptions & In-App Purchases

$0.29

6-Hour Room Pass

Create rooms freely for 6 hours.

User reviews

良い

すごく良いです。
ただ、自動スタートの秒数をもっと長い時間調節できるようにして欲しいです。
ランダム性もあって嬉しいのですが、全ての項目に適応されるので個別の項目で適用できるようになると嬉しいです。

追記
1人でも使えるようにゴール側の撮っている映像を全て保存できる機能も欲しいです!よろしくお願いします🙏

Response from developer

SprintLensをご利用いただきありがとうございます! 自動スタートの秒数をより長く調整できるようにすることや、ランダム設定を項目ごとに個別に適用できるようにすることについて、今後のアップデートで検討してまいります。 貴重なご意見をお寄せいただき、ありがとうございます!

Developer apps

FAQ

How does SprintLens measure race times?

SprintLens uses two smartphones: one at the start to capture the signal and another at the finish line to record high-frame-rate video. It synchronizes these to provide frame-by-frame review for precise finish time determination.

What sports is SprintLens best suited for?

SprintLens is ideal for track and field events like sprints and hurdles, as well as swimming races. It's also useful for time trials, practice sessions, and school club activities.

Can SprintLens replace official photo finish systems?

SprintLens is designed for practice and club use, offering high accuracy for its intended purpose. However, it is not guaranteed to replace official photo finish timing systems used in sanctioned competitions.

What devices does SprintLens support?

SprintLens is currently supported on iPhone devices, allowing users to leverage their existing smartphones for timing.

How often is SprintLens updated?

The app was last updated on September 14, 2026, indicating ongoing development and potential for future improvements and bug fixes.

What is the age rating for SprintLens?

SprintLens has an age rating of 4+, making it suitable for a wide range of users, including younger athletes and students.

Does SprintLens have ads?

No, SprintLens does not contain advertisements, providing an uninterrupted user experience for timing and analysis.

What are the potential factors affecting SprintLens timing accuracy?

Timing accuracy can vary depending on the device's frame rate, network environment, and recording conditions. Users should be aware of these variables when using the app.