# FLEX Stronger vs RepOne Personal

The clearest difference is review sentiment: FLEX Stronger at 71% against RepOne Personal's 25%. FLEX Stronger also leads on rating (4.4 vs 3.6) and update cadence (monthly vs every 2 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

FLEX Stronger holds the better App Store score, 4.4 against 3.6. Both are backed by a comparable volume of ratings — 8 and 16 respectively. Written reviews point the same way: 71% of FLEX Stronger's written reviews are positive against 25% of RepOne Personal's.

FLEX Stronger ships an update monthly, RepOne Personal every 2 months. The most recent releases landed on October 4, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | FLEX Stronger | RepOne Personal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (8 ratings)](https://appshunter.io/ios/app/flex-stronger/id1452436164/reviews)** | [3.6 (16 ratings)](https://appshunter.io/ios/app/repone-personal/id1496454046/reviews) |
| Number of ratings | 8 | **16** |
| Positive reviews | **71.4% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | Free |
| Size | 83 MB | 29 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Kinetic Performance](https://appshunter.io/developer/343232407) | [Squats & Science Labs, LLC](https://appshunter.io/developer/1166057818) |

## What reviewers say

### FLEX Stronger

[App page](https://appshunter.io/ios/app/flex-stronger/id1452436164)

This app revolutionizes weight training by syncing with a sensor to provide real-time performance feedback. Track, manage, and review your training like elite athletes, with automated workouts and group training options. It offers detailed metrics, video recording with data overlay, and a community feature for sharing and downloading workouts.

**Highlights:** Real-time performance feedback, Velocity-based training (VBT), Automated workouts, Group training for up to three people, Video recording with synced data, 1RM prediction, Workout creation and sharing

**Features:** macOS Compatibility

**In-app purchases:** none


### RepOne Personal

[App page](https://appshunter.io/ios/app/repone-personal/id1496454046)

This app provides real-time velocity feedback for training when connected to a specific motion tracker. It captures detailed workout data, allows for video logging, and offers advanced metrics for performance analysis. Users can customize displayed metrics and download their data.

**Highlights:** Real-time velocity feedback, Capture dozens of data points, Save training videos, Auto-track sets and reps, Generate load/velocity curve, Downloadable data, Detailed training history

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FLEX Stronger free?

FLEX Stronger is free to download, with no in-app purchases.

### Is RepOne Personal free?

RepOne Personal is free to download, with no in-app purchases.

### Which has better reviews, FLEX Stronger or RepOne Personal?

FLEX Stronger is rated higher. FLEX Stronger averages 4.4 out of 5 from 8 ratings, while RepOne Personal averages 3.6 from 16 ratings.

### Do FLEX Stronger or RepOne Personal have ads?

Neither FLEX Stronger nor RepOne Personal shows ads.

### Which is updated more often, FLEX Stronger or RepOne Personal?

FLEX Stronger ships an update monthly, and RepOne Personal every 2 months. Most recently, FLEX Stronger was updated on October 4, 2026 and RepOne Personal on October 5, 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.*