Flex3 vs LumiPin
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Flex3
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Flex3 is the go to app for all fitness trainer looking to enhance their clients' experience with classes. With over 80+ workouts with detailed instructions, Flex3 gives trainers and clients a rich set of easy to use features. Flex3 also aids progress tracking and helps solve consistency problems.Watch your clients' hard work pay off! Track their progress effortlessly through detailed metrics, and milestones. Celebrate achievements and stay focused on thier journey to a stronger and fitter.
LumiPin
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Using our smart device and the accompanying LumiPin app, you can: 1. No registration or login is required to use all application functions; the data you save will be automatically deleted when you leave. 2. The application will automatically synchronize with your phone's system time and language. 3. Mirror the camera data from your phone to your device.
Screenshots
Verdict
The clearest difference is update cadence: Flex3 at every 5 weeks against LumiPin's every 15 months. Flex3 also leads on iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
Flex3 ships an update every 5 weeks, LumiPin every 15 months. The most recent releases landed on May 28, 2026 and October 27, 2026 respectively.
| Parameter | Flex3 | LumiPin |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks — better | Every 15 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 29 MB | 131 MB |
| Age rating | 17+ | 4+ |
| Developer | Aravind Athreya | 平萍 毕 |
In-app purchases
Flex3
No in-app purchases
LumiPin
No in-app purchases
