# ChiroRing vs Transformula

The clearest difference is device support: Transformula at 4 against ChiroRing's 2. 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.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | ChiroRing | Transformula |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/chiroring-nervous-system-ring/id6752985942/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | — |
| Size | 65 MB | 178 MB |
| Requires iOS | **15.1** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [The Chiropractor PTE. LTD.](https://appshunter.io/developer/1497919841) | [Transformula Pty Ltd](https://appshunter.io/developer/6790902979) |

## What reviewers say

### ChiroRing

[App page](https://appshunter.io/ios/app/chiroring-nervous-system-ring/id6752985942)

This app tracks your nervous system's wellness using a smart ring, providing insights into sleep, stress, and recovery. It offers a daily NeuroAdaptive Index and personalized guidance to help you understand and manage your body's responses.

**Highlights:** Nervous system wellness tracking, NeuroAdaptive Index (0-10 scale), Recovery, Sleep, Stress, and Movement signals, Personalized guidance and insights, Log wellness activities and track responses, Community features

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Transformula

[App page](https://appshunter.io/ios/app/transformula/id6790902977)

**Features:** Apple Wallet, Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is ChiroRing free?

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

### Is Transformula free?

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

### Do ChiroRing or Transformula have ads?

Neither ChiroRing nor Transformula shows ads.

### Which is updated more often, ChiroRing or Transformula?

ChiroRing ships an update every 3 weeks, and Transformula every 3 weeks. Most recently, ChiroRing was updated on October 13, 2026 and Transformula on October 6, 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.*