# Function Health vs ON Health

The clearest difference is update cadence: Function Health at weekly against ON Health's every 12 months. 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, ON Health every 12 months. The most recent releases landed on November 11, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Function Health | ON Health |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (25K ratings)](https://appshunter.io/ios/app/function-health/id6471280307/reviews)** | — |
| Number of ratings | **25K** | — |
| Positive reviews | 61.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | **Weekly** | Every 12 months |
| Monetization | Free | — |
| Size | 206 MB | 90 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | **iPhone** | — |
| Age rating | 17+ | 17+ |
| Developer | [Function Health](https://appshunter.io/developer/1715014524) | [Concierge Administrative Services LLC.](https://appshunter.io/developer/1760484681) |

## What reviewers say

### Function Health

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

Gain deep insights into your health with over 160 lab tests annually, personalized protocols, and AI-powered chat. Understand your body's evolution, track progress, and make informed changes with advanced science and your data.

**Highlights:** 160+ annual lab tests, Personalized health protocols, AI-powered private chat, Home or office blood draws, Advanced MRI & CT scans, Connect wearables, 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


### ON Health

[App page](https://appshunter.io/ios/app/on-health/id6596744143)

**In-app purchases:** none


## Frequently asked questions

### Is Function Health free?

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

### Is ON Health free?

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

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

Function Health ships an update weekly, and ON Health every 12 months. Most recently, Function Health was updated on November 11, 2026 and ON Health on November 4, 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.*