# Function Health vs WavyFields Vitality

Function Health and WavyFields Vitality both sit at 4.9 stars, but that hides the real split: 100% of WavyFields Vitality's written reviews are positive against 62% of Function Health's. WavyFields Vitality also leads on update cadence (every 3 days vs weekly). Function Health's advantage is in-app purchases (none vs 4) and ratings volume (25K vs 2). On price, rating, ads and device support there is nothing between them.

Both are free to download. WavyFields Vitality sells 4 one-off in-app purchases. Function Health asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Function Health against 5.0 for WavyFields Vitality. 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. Written reviews are what separate them: 62% of Function Health's written reviews are positive against 100% of WavyFields Vitality's.

Function Health ships an update weekly, WavyFields Vitality every 3 days. The most recent releases landed on October 2, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Function Health | WavyFields Vitality |
| --- | --- | --- |
| 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/wavyfields-vitality/id6765754398/reviews)** |
| Number of ratings | **25K** | 2 |
| Positive reviews | 62.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 201 MB | 63 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 12+ |
| Developer | [Function Health](https://appshunter.io/developer/1715014524) | [WavyFields Inc.](https://appshunter.io/developer/1896060306) |

## 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


### WavyFields Vitality

[App page](https://appshunter.io/ios/app/wavyfields-vitality/id6765754398)

This app gamifies a wellness course, focusing on five key pillars: Mind, Digestion, Body, Breath, and Sleep. It offers science-backed lessons, daily challenges, and built-in tools like breathing exercises and mood tracking. An optional one-time purchase removes ads and provides an eBook.

**Highlights:** Gamified learning with XP and levels, Daily streaks and streak shields, Unlockable badges for mastery, Daily micro-challenges, Breathing exercises, Mood tracking with insights, Journaling with timeline view

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Coin Pack | $0.99 | one-time |
| Value Coin Pack | $1.99 | one-time |
| Power Coin Pack | $4.99 | one-time |
| Go Ad-Free + Get Ebook | $7.99 | one-time |


## Frequently asked questions

### Is Function Health free?

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

### Is WavyFields Vitality free?

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

### Which has better reviews, Function Health or WavyFields Vitality?

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

### Do Function Health or WavyFields Vitality have ads?

Neither Function Health nor WavyFields Vitality shows ads.

### Which is updated more often, Function Health or WavyFields Vitality?

Function Health ships an update weekly, and WavyFields Vitality every 3 days. Most recently, Function Health was updated on October 2, 2026 and WavyFields Vitality on September 26, 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.*