# Function Health vs DrBrewerAI

The clearest difference is rating: Function Health at 4.9 against DrBrewerAI's 4.0. Function Health also leads on ratings volume (25K vs 1) and chart position (#177 vs unranked). DrBrewerAI's advantage is monetization model (free vs subscription). On price, update cadence, ads and in-app purchases 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 holds the better App Store score, 4.9 against 4.0. 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.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 18, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Function Health | DrBrewerAI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (25K ratings)](https://appshunter.io/ios/app/function-health/id6471280307/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/drbrewerai/id6760274854/reviews) |
| Number of ratings | **25K** | 1 |
| Positive reviews | 61.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | Subscription | **Free** |
| Best chart rank | **#177** | — |
| Size | 203 MB | 34 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 17+ |
| Developer | [Function Health](https://appshunter.io/developer/1715014524) | [PrevMed Health](https://appshunter.io/developer/1883113754) |

## What reviewers say

### Function Health

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

**Currently charting:** #177 Top Free · Health & Fitness (US App Store)

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


### DrBrewerAI

[App page](https://appshunter.io/ios/app/drbrewerai/id6760274854)

This app helps you manage metabolic health by connecting you with your healthcare provider. It offers risk assessments, health history tracking, lab result integration, and personalized goal setting. An AI companion provides general health information between appointments.

**Highlights:** Metabolic Risk Assessment, Health History Tracking, Lab Result Integration, Personalized Goal Setting, AI Health Companion, Secure Communication with Care Team

**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 DrBrewerAI free?

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

### Which has better reviews, Function Health or DrBrewerAI?

Function Health is rated higher. Function Health averages 4.9 out of 5 from 25K ratings, while DrBrewerAI averages 4.0 from 1 ratings.

### Do Function Health or DrBrewerAI have ads?

Neither Function Health nor DrBrewerAI shows ads.

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

Function Health ships an update weekly, and DrBrewerAI weekly. Most recently, Function Health was updated on October 18, 2026 and DrBrewerAI on October 11, 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.*