# Function Health vs Oxynergy2

The clearest difference is ads: Function Health at none against Oxynergy2's shown. Function Health also leads on update cadence (weekly vs every 4 months). Oxynergy2's advantage is device support (3 vs 1). On price, in-app purchases and iOS requirement there is nothing between them.

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

Function Health ships an update weekly, Oxynergy2 every 4 months. The most recent releases landed on October 14, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Function Health | Oxynergy2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (25K ratings)](https://appshunter.io/ios/app/function-health/id6471280307/reviews)** | — |
| Number of ratings | **25K** | — |
| Positive reviews | 62.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 4 months |
| Monetization | Subscription | — |
| Size | 202 MB | 49 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Function Health](https://appshunter.io/developer/1715014524) | [Health Supply Group LLC](https://appshunter.io/developer/1800980837) |

## What reviewers say

### Function Health

[App page](https://appshunter.io/ios/app/function-health/id6471280307)

Take control of your health with comprehensive lab testing, personalized protocols, and AI-powered insights. Understand your body's data, track changes over time, and make informed decisions for long-term wellness. Connect wearables and upload records for a complete health picture.

**Highlights:** 160+ lab tests annually, Personalized health protocols, Private AI Chat for results, Connect health wearables, Advanced MRI & CT scans, Upload health records

**Features:** Apple Wallet

**In-app purchases:** none

**What reviewers like**

- 🚀 Seamless process for blood tests and results
- 📊 Comprehensive health insights and tracking
- 🧠 Helpful clinician notes and recommendations
- 👍 User-friendly and visually appealing app
- 💰 Affordable compared to other options

**What reviewers complain about**

- 🔍 Lack of communication and support responsiveness
- 🐛 Some bugs and usability issues in the app

**Reported bugs**

- App sometimes redirects back to the home screen when trying to view results
- Occasional typos and formatting issues in the app

**Requested features**

- More customization options in the app settings
- Ability to print or export test results and recommendations
- Specific supplement recommendations rather than broad suggestions


### Oxynergy2

[App page](https://appshunter.io/ios/app/oxynergy2/id6743040878)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Function Health free?

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

### Is Oxynergy2 free?

Oxynergy2 is free to download, with no in-app purchases.

### Do Function Health or Oxynergy2 have ads?

Oxynergy2 shows ads; Function Health does not.

### Which is updated more often, Function Health or Oxynergy2?

Function Health ships an update weekly, and Oxynergy2 every 4 months. Most recently, Function Health was updated on October 14, 2026 and Oxynergy2 on September 25, 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.*