Keep Up AI vs SprintLens
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Keep Up AI
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.
- AI-powered automatic juggling count
- Real-time tracking for multiple sports
- Visual performance summaries
- Offline mode
- Lightweight and easy to use
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Juggle Counter is your personal coach to track and count your ball juggling sessions automatically using advanced AI technology. Whether you're practicing freestyle football, juggling a basketball, or working on your soccer juggling skills, Juggle Counter detects each bounce and keeps track of your progress in real time. Features: - Automatic juggling count using AI-powered camera detection. - Real-time tracking for football, soccer, basketball, and more. - Visual performance summary after each session. - Lightweight and easy to use. - Offline mode available. - Premium version to remove ads and unlock distraction-free experience. Start tracking your juggling skills today and take your practice to the next level!
SprintLens
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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SprintLens is a photo finish timing app designed to measure times with high accuracy using just two smartphones. It is ideal for track and field, swimming, and other timed sports. Perfect for team managers, coaches, and club advisors! As a runner myself, I created this app from the perspective of athletes and team managers who want precise and flexible timing tools. Place one smartphone at the start and another at the finish. SprintLens combines the start signal with high-frame-rate video recorded at the finish, allowing you to review the exact finish moment frame by frame. It is designed to make timing more accurate and easier to understand in situations where stopping a manual stopwatch is not enough, such as sprints, swimming races, time trials, practice sessions, and school club activities. 【Key Features】 ・Measure times using two smartphones placed at the start and finish ・Timing linked with the start signal ・High-frame-rate video recording at the finish ・Frame-by-frame video review to determine the finish time ・Useful for sprints, 100m races, time trials, club activities, and practice sessions ・Create a timing setup using only smartphones, without dedicated photo finish equipment 【Recommended For】 ・Track and field and swimming practice ・Accurate timing for 100m, 200m, hurdles, and other short-distance events ・Recording practice results for teams and school clubs ・Situations where manual stopwatch timing is difficult ・Reviewing the exact finish moment on video SprintLens is designed to help you check the time from start to finish using video and synchronized timing data. ※Timing accuracy may vary depending on the device, frame rate, network environment, and recording conditions. ※This app is not guaranteed to replace official photo finish timing systems used in sanctioned competitions.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Keep Up AI | SprintLens |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 — better | — |
| Update frequency | Weekly | Every 6 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 76 MB | 79 MB |
| Age rating | 4+ | 4+ |
| Developer | Anthony Lopez | Koki Osada |
Customer experience
Keep Up AI
SprintLens
In-app purchases
Keep Up AI
No in-app purchases
SprintLens
- 6-Hour Room Pass$0.29
- Lifetime Room Pass$59.99
Questions
Is Keep Up AI free?
Is SprintLens free?
Do Keep Up AI or SprintLens have ads?
Which is updated more often, Keep Up AI or SprintLens?
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