# Angles Alpha vs Flexibility Tracker

The clearest difference is rating: Flexibility Tracker at 4.7 against Angles Alpha's 3.3. Flexibility Tracker also leads on update cadence (every 3 days vs weekly) and ratings volume (42 vs 8). Angles Alpha's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 16.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Angles Alpha sells 1 in-app purchase, starting at $3.99 per month and Flexibility Tracker sells 4 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

Flexibility Tracker holds the better App Store score, 4.7 against 3.3. That said, the two scores are not equally well evidenced: Flexibility Tracker has 42 ratings behind it against 8, so its average is the more settled of the two. Written reviews split almost evenly too, at 50% and 50% positive.

Angles Alpha ships an update weekly, Flexibility Tracker every 3 days. The most recent releases landed on September 26, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Angles Alpha | Flexibility Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (8 ratings)](https://appshunter.io/ios/app/angles-alpha/id1529515988/reviews) | **[4.7 (42 ratings)](https://appshunter.io/ios/app/flexibility-tracker-range/id6479176812/reviews)** |
| Number of ratings | 8 | **42** |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 6 MB | 235 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [A.I. Initiatives, LLC](https://appshunter.io/developer/1222011220) | [Daniel Wainryb](https://appshunter.io/developer/1735069118) |

## What reviewers say

### Angles Alpha

[App page](https://appshunter.io/ios/app/angles-alpha/id1529515988)

This app tracks and records the relative angles of the human body, capturing movement data. Users can share this information with trusted individuals and access a history of their data. A free trial is available.

**Highlights:** Track relative body angles, Capture movement data, Record data history, Share data with others, Free 1-week trial

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Data Collection Access | $3.99 | per month |


### Flexibility Tracker

[App page](https://appshunter.io/ios/app/flexibility-tracker-range/id6479176812)

Measure, track, and improve your physical flexibility using your phone's camera. AI-powered measurements and visual progress tracking help you achieve your stretching goals, from touching your toes to mastering the splits. Stay motivated with levels and badges.

**Highlights:** Measure joint angles with camera/photo, Track progress with pictures and data, AI-powered flexibility analysis, Compare and visualize improvements, Stay motivated with levels and badges, Tag measurements as 'Warm' or 'Cold'

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly member | $8.99 | per month |
| Monthly member | $12.99 | per month |
| Annual member | $39.99 | per year |
| Yearly member | $39.99 | per year |


## Frequently asked questions

### Is Angles Alpha free?

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

### Is Flexibility Tracker free?

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

### Which has better reviews, Angles Alpha or Flexibility Tracker?

Flexibility Tracker is rated higher. Angles Alpha averages 3.3 out of 5 from 8 ratings, while Flexibility Tracker averages 4.7 from 42 ratings.

### Do Angles Alpha or Flexibility Tracker have ads?

Neither Angles Alpha nor Flexibility Tracker shows ads.

### Which is updated more often, Angles Alpha or Flexibility Tracker?

Angles Alpha ships an update weekly, and Flexibility Tracker every 3 days. Most recently, Angles Alpha was updated on September 26, 2026 and Flexibility Tracker on October 8, 2026.

---

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