# Function Health vs Thrive HealthOS

The clearest difference is ratings volume: Function Health at 25K against Thrive HealthOS's 1. On price, rating, update cadence and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.9 for Function Health against 5.0 for Thrive HealthOS. That said, the two scores are not equally well evidenced: Function Health has 25K ratings behind it against 1, so its average is the more settled of the two.

Function Health ships an update weekly, Thrive HealthOS every 11 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Function Health | Thrive HealthOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (25K ratings)](https://appshunter.io/ios/app/function-health/id6471280307/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/thrive-healthos/id6775635574/reviews)** |
| Number of ratings | **25K** | 1 |
| Positive reviews | 61.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 11 days |
| Monetization | Free | Free |
| Size | 205 MB | 301 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 12+ |
| Developer | [Function Health](https://appshunter.io/developer/1715014524) | [Thrive Global](https://appshunter.io/developer/1412847892) |

## What reviewers say

### Function Health

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

Gain deep insights into your health with advanced lab testing, personalized protocols, and AI-powered chat. Understand your body's evolution and make informed changes with data-backed guidance. Includes options for advanced imaging and convenient blood draws.

**Highlights:** 160+ lab tests annually, Personalized health protocols, Private AI Chat for results, Advanced MRI & CT scan options, Home or office blood draws, 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


### Thrive HealthOS

[App page](https://appshunter.io/ios/app/thrive-healthos/id6775635574)

This health companion proactively monitors your personal health signals to provide personalized guidance. It offers daily summaries, real-time microsteps, and stress relief exercises based on your unique data.

**Highlights:** Personalized Microsteps, Real-time Health Signal Analysis, Daily Health Briefings, Dynamic Homepage, Stress Relief Exercises

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

**In-app purchases:** none


## Frequently asked questions

### Is Function Health free?

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

### Is Thrive HealthOS free?

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

### Which has better reviews, Function Health or Thrive HealthOS?

Thrive HealthOS is rated higher. Function Health averages 4.9 out of 5 from 25K ratings, while Thrive HealthOS averages 5.0 from 1 ratings.

### Do Function Health or Thrive HealthOS have ads?

Neither Function Health nor Thrive HealthOS shows ads.

### Which is updated more often, Function Health or Thrive HealthOS?

Function Health ships an update weekly, and Thrive HealthOS every 11 days. Most recently, Function Health was updated on November 4, 2026 and Thrive HealthOS on October 31, 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.*