# ENDO1000 vs Primal Physique

The clearest difference is in-app purchases: ENDO1000 at none against Primal Physique's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Primal Physique sells 3 in-app purchases, starting at $99.99 per month. ENDO1000 asks for nothing beyond the download.

ENDO1000 ships an update every 8 days, Primal Physique fortnightly. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | ENDO1000 | Primal Physique |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Fortnightly |
| Monetization | Free | — |
| Size | 42 MB | 75 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [The University of Edinburgh](https://appshunter.io/developer/428517240) | [John Boon](https://appshunter.io/developer/1552551690) |

## What reviewers say

### ENDO1000

[App page](https://appshunter.io/ios/app/endo1000/id6752020204)

This app supports endometriosis research by allowing participants to track symptoms and complete study tasks. It also offers educational resources and community insights for anyone seeking information about the condition.

**Highlights:** Symptom and pain tracking, Study questionnaires, Progress tracking, Educational content, Research updates, Secure data handling

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

**In-app purchases:** none


### Primal Physique

[App page](https://appshunter.io/ios/app/primal-physique/id6809341808)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Accelerator Plan | $99.99 | per month |
| Precision Plan | $249.99 | per month |
| Request New Plan | $29.99 | one-time |


## Frequently asked questions

### Is ENDO1000 free?

ENDO1000 is free to download, with no in-app purchases.

### Is Primal Physique free?

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

### Do ENDO1000 or Primal Physique have ads?

Neither ENDO1000 nor Primal Physique shows ads.

### Which is updated more often, ENDO1000 or Primal Physique?

ENDO1000 ships an update every 8 days, and Primal Physique fortnightly. Most recently, ENDO1000 was updated on October 9, 2026 and Primal Physique on October 7, 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.*