# Function Health vs Endless Waves Foil Progression

The clearest difference is rating: Function Health at 4.9 against Endless Waves Foil Progression's 4.3. Function Health also leads on ratings volume (25K vs 6) and iOS requirement (16.4 vs 18.5). Endless Waves Foil Progression's advantage is review sentiment (100% vs 61%). 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 4.3. That said, the two scores are not equally well evidenced: Function Health has 25K ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 61% of Function Health's written reviews are positive against 100% of Endless Waves Foil Progression's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on November 15, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Function Health | Endless Waves Foil Progression |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (25K ratings)](https://appshunter.io/ios/app/function-health/id6471280307/reviews)** | [4.3 (6 ratings)](https://appshunter.io/ios/app/endless-waves-foil-progression/id6759779503/reviews) |
| Number of ratings | **25K** | 6 |
| Positive reviews | 61.2% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | Free | Free |
| Size | 206 MB | 462 MB |
| Requires iOS | **16.4** | 18.5 |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [Function Health](https://appshunter.io/developer/1715014524) | [Kevin Dickinson](https://appshunter.io/developer/1799111455) |

## What reviewers say

### Function Health

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

Gain deep insights into your health with over 160 lab tests annually, personalized protocols, and AI-powered chat. Understand your body's evolution, track progress, and make informed changes with advanced science and your data.

**Highlights:** 160+ annual lab tests, Personalized health protocols, AI-powered private chat, Home or office blood draws, Advanced MRI & CT scans, Connect wearables, 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


### Endless Waves Foil Progression

[App page](https://appshunter.io/ios/app/endless-waves-foil-progression/id6759779503)

Track your prone foil surfing and downwind foiling sessions with detailed metrics. View runs on a map, replay GPS tracks, and compare performance. Integrates with Apple Fitness to count towards your activity rings.

**Highlights:** GPS session tracking, Heart rate and speed metrics, Satellite map view of runs, Session history and records, Apple Fitness integration, Watch face complication for quick start

**Features:** macOS Compatibility, Apple Watch app, 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 Endless Waves Foil Progression free?

Endless Waves Foil Progression is free to download, with no in-app purchases.

### Which has better reviews, Function Health or Endless Waves Foil Progression?

Function Health is rated higher. Function Health averages 4.9 out of 5 from 25K ratings, while Endless Waves Foil Progression averages 4.3 from 6 ratings.

### Do Function Health or Endless Waves Foil Progression have ads?

Neither Function Health nor Endless Waves Foil Progression shows ads.

### Which is updated more often, Function Health or Endless Waves Foil Progression?

Function Health ships an update weekly, and Endless Waves Foil Progression weekly. Most recently, Function Health was updated on November 15, 2026 and Endless Waves Foil Progression on November 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.*