# Function Health vs NockOut

Function Health and NockOut both sit at 4.9 stars, but that hides the real split: 100% of NockOut's written reviews are positive against 62% of Function Health's. NockOut also leads on monetization model (free vs subscription). Function Health's advantage is ratings volume (25K vs 6). On price, rating, update cadence and ads 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 NockOut. 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 are what separate them: 62% of Function Health's written reviews are positive against 100% of NockOut's.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Function Health | NockOut |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (25K ratings)](https://appshunter.io/ios/app/function-health/id6471280307/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/nockout/id6477323254/reviews)** |
| Number of ratings | **25K** | 6 |
| Positive reviews | 62.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | Subscription | **Free** |
| Size | 202 MB | 52 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Function Health](https://appshunter.io/developer/1715014524) | [Subramanya N](https://appshunter.io/developer/1728969822) |

## 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


### NockOut

[App page](https://appshunter.io/ios/app/nockout/id6477323254)

Connect with local athletes, discover sports venues, and manage your sports activities. Improve your game with fitness programs and track your progress. Find events and join communities to enhance your sports experience.

**Highlights:** Connect with local players and groups, Discover and book sports venues, Access fitness programs and learn from professionals, Track progress and integrate with HealthKit, Explore activities and events, Manage teams and RSVPs

**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 NockOut free?

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

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

NockOut is rated higher. Function Health averages 4.9 out of 5 from 25K ratings, while NockOut averages 5.0 from 6 ratings.

### Do Function Health or NockOut have ads?

Neither Function Health nor NockOut shows ads.

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

Function Health ships an update weekly, and NockOut weekly. Most recently, Function Health was updated on October 14, 2026 and NockOut on October 7, 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.*