# 发令助手pro vs SprintLens

The clearest difference is in-app purchases: 发令助手pro at none against SprintLens's 2. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SprintLens sells 2 one-off in-app purchases. 发令助手pro asks for nothing beyond the download.

## The numbers

| Metric | 发令助手pro | SprintLens |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 6 days |
| Monetization | — | Free with in-app purchases |
| Size | 5 MB | 79 MB |
| Requires iOS | 26.0 | 26.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [小赫 莫](https://appshunter.io/developer/1887912193) | [Koki Osada](https://appshunter.io/developer/1501162473) |

## What reviewers say

### 发令助手pro

[App page](https://appshunter.io/ios/app/pro/id6761249702)

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is 发令助手pro free?

发令助手pro is free to download, with no in-app purchases.

### Is SprintLens free?

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

### Do 发令助手pro or SprintLens have ads?

Neither 发令助手pro nor SprintLens shows ads.

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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.*