# Function Health vs MoldAI

The clearest difference is in-app purchases: Function Health at none against MoldAI's 3. Function Health also leads on review sentiment (62% vs 33%) and update cadence (weekly vs every 6 weeks). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. MoldAI sells 3 in-app purchases, starting at $9.99 per 7 days. Function Health asks for nothing beyond the download.

Function Health holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: Function Health has 25K ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 62% of Function Health's written reviews are positive against 33% of MoldAI's.

Function Health ships an update weekly, MoldAI every 6 weeks. The most recent releases landed on October 23, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Function Health | MoldAI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (25K ratings)](https://appshunter.io/ios/app/function-health/id6471280307/reviews)** | [4.6 (16 ratings)](https://appshunter.io/ios/app/moldai-mold-identifier/id6752491972/reviews) |
| Number of ratings | **25K** | 16 |
| Positive reviews | **61.8% of reviews** | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 6 weeks |
| Monetization | Subscription | Subscription |
| Best chart rank | **#208** | — |
| Size | 203 MB | 40 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Function Health](https://appshunter.io/developer/1715014524) | [Zirconia Labs LLC](https://appshunter.io/developer/1826663498) |

## What reviewers say

### Function Health

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

**Currently charting:** #208 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


### MoldAI

[App page](https://appshunter.io/ios/app/moldai-mold-identifier/id6752491972)

Scan your home for mold using your camera. This AI-powered tool analyzes images to identify mold presence, type, and potential severity. Track your findings over time in a personal dashboard to stay proactive about your living environment.

**Highlights:** AI-powered mold scanning, Detailed mold reports, Type and severity likelihood, Personal scan dashboard, Proactive monitoring, Secure on-device storage

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MoldAI Premium Weekly | $9.99 | per 7 days |
| MoldAI Premium Weekly | $9.99 | per 7 days |
| MoldAI Premium Annual | $19.99 | per year |


## Frequently asked questions

### Is Function Health free?

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

### Is MoldAI free?

MoldAI is free to download, with in-app purchases available.

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

Function Health is rated higher. Function Health averages 4.9 out of 5 from 25K ratings, while MoldAI averages 4.6 from 16 ratings.

### Do Function Health or MoldAI have ads?

Neither Function Health nor MoldAI shows ads.

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

Function Health ships an update weekly, and MoldAI every 6 weeks. Most recently, Function Health was updated on October 23, 2026 and MoldAI on October 9, 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.*