# Precision Performance Inst. vs Function Health

Precision Performance Inst. and Function Health both sit at 5.0 stars, but that hides the real split: 100% of Precision Performance Inst.'s written reviews are positive against 62% of Function Health's. Precision Performance Inst. also leads on monetization model (free vs subscription) and iOS requirement (13.0 vs 16.4). Function Health's advantage is update cadence (weekly vs every 12 months) and ratings volume (25K vs 4). 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 — 5.0 for Precision Performance Inst. against 4.9 for Function Health. That said, the two scores are not equally well evidenced: Function Health has 25K ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 100% of Precision Performance Inst.'s written reviews are positive against 62% of Function Health's.

Precision Performance Inst. ships an update every 12 months, Function Health weekly. The most recent releases landed on October 1, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Precision Performance Inst. | Function Health |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/precision-performance-inst/id1444768685/reviews)** | [4.9 (25K ratings)](https://appshunter.io/ios/app/function-health/id6471280307/reviews) |
| Number of ratings | 4 | **25K** |
| Positive reviews | **100.0% of reviews** | 62.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Weekly** |
| Monetization | **Free** | Subscription |
| Size | 54 MB | 202 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Taylor Lewis](https://appshunter.io/developer/1444768684) | [Function Health](https://appshunter.io/developer/1715014524) |

## What reviewers say

### Precision Performance Inst.

[App page](https://appshunter.io/ios/app/precision-performance-inst/id1444768685)

Log your workouts, view scheduled sessions, and track your progress. This app helps you maximize your training from anywhere. Get the most out of your fitness journey.

**Highlights:** Log workouts, View scheduled workouts, Track progress, Access from anywhere, Workout analysis

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Precision Performance Inst. free?

Precision Performance Inst. is free to download, with no in-app purchases.

### Is Function Health free?

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

### Which has better reviews, Precision Performance Inst. or Function Health?

Precision Performance Inst. is rated higher. Precision Performance Inst. averages 5.0 out of 5 from 4 ratings, while Function Health averages 4.9 from 25K ratings.

### Do Precision Performance Inst. or Function Health have ads?

Neither Precision Performance Inst. nor Function Health shows ads.

### Which is updated more often, Precision Performance Inst. or Function Health?

Precision Performance Inst. ships an update every 12 months, and Function Health weekly. Most recently, Precision Performance Inst. was updated on October 1, 2026 and Function Health on October 14, 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.*