# Function Health vs Phoenix APOE4

The clearest difference is update cadence: Function Health at weekly against Phoenix APOE4's monthly. On price, ads, in-app purchases and device support 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, Phoenix APOE4 monthly. The most recent releases landed on September 26, 2026 and September 4, 2026 respectively.

## The numbers

| Metric | Function Health | Phoenix APOE4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (25K ratings)](https://appshunter.io/ios/app/function-health/id6471280307/reviews)** | — |
| Number of ratings | **25K** | — |
| Positive reviews | 61.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Monetization | Subscription | — |
| Size | 201 MB | 45 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Function Health](https://appshunter.io/developer/1715014524) | [The Phoenix Protocol Pte. Ltd.](https://appshunter.io/developer/1873146387) |

## 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


### Phoenix APOE4

[App page](https://appshunter.io/ios/app/phoenix-apoe4/id6758485269)

**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 Phoenix APOE4 free?

Phoenix APOE4 is free to download, with no in-app purchases.

### Do Function Health or Phoenix APOE4 have ads?

Neither Function Health nor Phoenix APOE4 shows ads.

### Which is updated more often, Function Health or Phoenix APOE4?

Function Health ships an update weekly, and Phoenix APOE4 monthly. Most recently, Function Health was updated on September 26, 2026 and Phoenix APOE4 on September 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.*