# SprintLens vs Sprint Starter

The clearest difference is update cadence: SprintLens at every 6 days against Sprint Starter's every 2 weeks. Sprint Starter's advantage is iOS requirement (18.2 vs 26.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. SprintLens sells 2 one-off in-app purchases and Sprint Starter sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

SprintLens ships an update every 6 days, Sprint Starter every 2 weeks. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | SprintLens | Sprint Starter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/sprint-starter-reaction-timer/id6816114735/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 79 MB | 19 MB |
| Requires iOS | 26.0 | **18.2** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Koki Osada](https://appshunter.io/developer/1501162473) | [Omar Battan](https://appshunter.io/developer/6815993257) |

## What reviewers say

### SprintLens

[App page](https://appshunter.io/ios/app/sprintlens/id6773487217)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 6-Hour Room Pass | $0.29 | one-time |
| Lifetime Room Pass | $59.99 | one-time |


### Sprint Starter

[App page](https://appshunter.io/ios/app/sprint-starter-reaction-timer/id6816114735)

This app simulates race starting blocks with customizable delays and authentic sound cues. It precisely measures reaction times to help athletes improve their speed and avoid false starts. Track your progress with detailed logs and trend analysis.

**Highlights:** Authentic race sequence with voice commands, Randomized hold delay for training, False start detection and tracking, Millisecond precision reaction time measurement, Customizable voice engine, Historical performance logs and trend analysis

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sprint Starter PRO | $3.99 | one-time |


## Frequently asked questions

### Is SprintLens free?

SprintLens is free to download, with in-app purchases available.

### Is Sprint Starter free?

Sprint Starter is free to download, with in-app purchases available.

### Do SprintLens or Sprint Starter have ads?

Neither SprintLens nor Sprint Starter shows ads.

### Which is updated more often, SprintLens or Sprint Starter?

SprintLens ships an update every 6 days, and Sprint Starter every 2 weeks. Most recently, SprintLens was updated on November 5, 2026 and Sprint Starter on November 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*