# Function Health vs KBMO

The clearest difference is monetization model: KBMO at free against Function Health's subscription. KBMO also leads on device support (3 vs 1). Function Health's advantage is ratings volume (25K vs 2) and update cadence (weekly vs every 3 weeks). On price, rating, 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.

On the App Store both sit at effectively the same score — 4.9 for Function Health against 5.0 for KBMO. That said, the two scores are not equally well evidenced: Function Health has 25K ratings behind it against 2, so its average is the more settled of the two.

Function Health ships an update weekly, KBMO every 3 weeks. The most recent releases landed on October 14, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Function Health | KBMO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (25K ratings)](https://appshunter.io/ios/app/function-health/id6471280307/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/kbmo/id6757969108/reviews)** |
| Number of ratings | **25K** | 2 |
| Positive reviews | 62.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Subscription | **Free** |
| Size | 202 MB | 36 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [Function Health](https://appshunter.io/developer/1715014524) | [KBMO Diagnostics](https://appshunter.io/developer/1117169460) |

## 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


### KBMO

[App page](https://appshunter.io/ios/app/kbmo/id6757969108)

Access your personalized Food Inflammation Test and Meal Plan results directly on your phone. This app offers an easy-to-understand and readily available presentation of your health data, replacing physical printouts. Always consult a doctor for medical advice alongside using the app.

**Highlights:** Personalized test results, Digital meal plan access, Easy-to-understand presentation, Always available on phone, Replaces printouts

**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 KBMO free?

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

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

KBMO is rated higher. Function Health averages 4.9 out of 5 from 25K ratings, while KBMO averages 5.0 from 2 ratings.

### Do Function Health or KBMO have ads?

Neither Function Health nor KBMO shows ads.

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

Function Health ships an update weekly, and KBMO every 3 weeks. Most recently, Function Health was updated on October 14, 2026 and KBMO on September 29, 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.*