# Keep Up AI vs SprintLens

The clearest difference is in-app purchases: Keep Up AI at none against SprintLens's 2. Keep Up AI also leads on device support (3 vs 1) and iOS requirement (13.0 vs 26.0). SprintLens's advantage is ads (none vs shown). On price, update cadence and monetization model there is nothing between them.

Both are free to download. SprintLens sells 2 one-off in-app purchases. Keep Up AI asks for nothing beyond the download.

Keep Up AI ships an update weekly, SprintLens every 6 days. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Keep Up AI | SprintLens |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/keep-up-ai/id6745725619/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Weekly | **Every 6 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 76 MB | 79 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Anthony Lopez](https://appshunter.io/developer/1813536489) | [Koki Osada](https://appshunter.io/developer/1501162473) |

## What reviewers say

### Keep Up AI

[App page](https://appshunter.io/ios/app/keep-up-ai/id6745725619)

This app uses AI-powered camera detection to automatically count ball juggling sessions in real-time. It supports various sports like football, soccer, and basketball, providing visual performance summaries after each practice. An offline mode is available for uninterrupted training.

**Highlights:** AI-powered automatic juggling count, Real-time tracking for multiple sports, Visual performance summaries, Offline mode, Lightweight and easy to use

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

**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 Keep Up AI free?

Keep Up AI is free to download, with no in-app purchases.

### Is SprintLens free?

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

### Do Keep Up AI or SprintLens have ads?

Keep Up AI shows ads; SprintLens does not.

### Which is updated more often, Keep Up AI or SprintLens?

Keep Up AI ships an update weekly, and SprintLens every 6 days. Most recently, Keep Up AI was updated on October 19, 2026 and SprintLens on October 24, 2026.

---

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