# Aquivalent vs Function Health

The clearest difference is rating: Function Health at 4.9 against Aquivalent's 3.5. Function Health also leads on ratings volume (25K vs 8) and update cadence (weekly vs monthly). Aquivalent's advantage is monetization model (free vs subscription) and review sentiment (80% vs 62%). On price, ads, in-app purchases and device support 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 3.5. That said, the two scores are not equally well evidenced: Function Health has 25K ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 80% of Aquivalent's written reviews are positive against 62% of Function Health's, so the app with the better star average is not the one people write more warmly about.

Aquivalent ships an update monthly, Function Health weekly. The most recent releases landed on October 9, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Aquivalent | Function Health |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (8 ratings)](https://appshunter.io/ios/app/aquivalent/id6463002022/reviews) | **[4.9 (25K ratings)](https://appshunter.io/ios/app/function-health/id6471280307/reviews)** |
| Number of ratings | 8 | **25K** |
| Positive reviews | **80.0% of reviews** | 61.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | **Free** | Subscription |
| Size | 78 MB | 203 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Aquatic clear solutions, LLC](https://appshunter.io/developer/1703763151) | [Function Health](https://appshunter.io/developer/1715014524) |

## What reviewers say

### Aquivalent

[App page](https://appshunter.io/ios/app/aquivalent/id6463002022)

This app uses AI and a specialized kit to provide accurate water testing for pools and hot tubs. Simply scan test strips for instant readings on key chemical levels, helping you maintain healthy and safe water while saving on chemical costs.

**Highlights:** AI-enabled water testing, Scan test strips for instant readings, Tests for chlorine, alkalinity, pH, and more, Durable and protective test strip kit, Cost savings on pool chemicals, Compatible with iPhone

**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 Aquivalent free?

Aquivalent 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, Aquivalent or Function Health?

Function Health is rated higher. Aquivalent averages 3.5 out of 5 from 8 ratings, while Function Health averages 4.9 from 25K ratings.

### Do Aquivalent or Function Health have ads?

Neither Aquivalent nor Function Health shows ads.

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

Aquivalent ships an update monthly, and Function Health weekly. Most recently, Aquivalent was updated on October 9, 2026 and Function Health on October 17, 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.*