# Function Health vs toFailure

The clearest difference is monetization model: toFailure at free against Function Health's subscription. Function Health's advantage is ratings volume (25K vs 1). 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 toFailure. That said, the two scores are not equally well evidenced: Function Health has 25K ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | Function Health | toFailure |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (25K ratings)](https://appshunter.io/ios/app/function-health/id6471280307/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tofailure/id6758894737/reviews)** |
| Number of ratings | **25K** | 1 |
| Positive reviews | 62.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | — |
| Monetization | Subscription | **Free** |
| Size | 202 MB | 26 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Function Health](https://appshunter.io/developer/1715014524) | [THOMAS CARLYLE POLAN](https://appshunter.io/developer/1875070199) |

## 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


### toFailure

[App page](https://appshunter.io/ios/app/tofailure/id6758894737)

This app helps you track your workouts by logging one set to failure per exercise. Monitor your body weight trends and review your complete workout history. All your data is stored locally, ensuring privacy.

**Highlights:** Custom workout program creation, Log one set to failure per exercise, Track body weight with trend chart, View workout history and duration, Local data storage, no account needed

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Function Health free?

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

### Is toFailure free?

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

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

toFailure is rated higher. Function Health averages 4.9 out of 5 from 25K ratings, while toFailure averages 5.0 from 1 ratings.

### Do Function Health or toFailure have ads?

Neither Function Health nor toFailure shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*