# Viome vs Function Health

The clearest difference is monetization model: Viome at free with in-app purchases against Function Health's subscription. Viome also leads on device support (3 vs 1). Function Health's advantage is update cadence (weekly vs every 6 weeks) and rating (4.9 vs 4.6). On price, ads, 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 holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 5.5K and 25K respectively. Written reviews point the same way: 42% of Viome's written reviews are positive against 62% of Function Health's.

Viome ships an update every 6 weeks, Function Health weekly. The most recent releases landed on September 22, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Viome | Function Health |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (5.5K ratings)](https://appshunter.io/ios/app/viome/id1206984146/reviews) | **[4.9 (25K ratings)](https://appshunter.io/ios/app/function-health/id6471280307/reviews)** |
| Number of ratings | 5.5K | **25K** |
| Positive reviews | 41.9% of reviews | **61.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 44 MB | 199 MB |
| Requires iOS | **15.5** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 17+ |
| Developer | [Viome Life Sciences, Inc.](https://appshunter.io/developer/1206984145) | [Function Health](https://appshunter.io/developer/1715014524) |

## What reviewers say

### Viome

[App page](https://appshunter.io/ios/app/viome/id1206984146)

Gain personalized health insights based on your unique microbiome and cellular data. Receive tailored food and supplement recommendations to optimize digestion, energy, immunity, and aging. Integrates with HealthKit for a comprehensive view of your well-being.

**Highlights:** Microbiome analysis, Personalized food recommendations, Custom supplement formulation, Integrative health scores, Biological age tracking, Gut health optimization, Immune system support

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Great service
- 👍 Helpful insights
- 💡 Life-changing results
- 🚀 Comprehensive app
- 👍 Useful food recommendations

**What reviewers complain about**

- 🐛 App crashes and freezes
- 🐛 Buggy and unstable app
- 🐛 Impossible to register kit
- 🐛 App not working
- 🐛 Slow app performance

**Reported bugs**

- Registration process not working
- App crashing and freezing
- Questionnaire not loading properly
- Subscription management issues

**Requested features**

- Offline food list for shopping
- Improved app stability and performance
- Better customer support and communication


### 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


## Frequently asked questions

### Is Viome free?

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

### Is Function Health free?

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

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

Function Health is rated higher. Viome averages 4.6 out of 5 from 5.5K ratings, while Function Health averages 4.9 from 25K ratings.

### Do Viome or Function Health have ads?

Neither Viome nor Function Health shows ads.

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

Viome ships an update every 6 weeks, and Function Health weekly. Most recently, Viome was updated on September 22, 2026 and Function Health on September 24, 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.*