# Chain vs BRUXISM + Fix Teeth Grinding

The clearest difference is in-app purchases: Chain at none against BRUXISM + Fix Teeth Grinding's 2. Chain also leads on iOS requirement (12.0 vs 16.0). BRUXISM + Fix Teeth Grinding's advantage is update cadence (every 6 weeks vs every 9 months). On price, ads and device support there is nothing between them.

Both are free to download. BRUXISM + Fix Teeth Grinding sells 2 in-app purchases, starting at $3.99 per month. Chain asks for nothing beyond the download.

Chain ships an update every 9 months, BRUXISM + Fix Teeth Grinding every 6 weeks. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Chain | BRUXISM + Fix Teeth Grinding |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (10 ratings)](https://appshunter.io/ios/app/bruxism-plus-fix-teeth-grinding/id6677031502/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | — | 60.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 6 weeks** |
| Monetization | — | Subscription |
| Size | 32 MB | 164 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [CHU de Liege](https://appshunter.io/developer/1454207793) | [Moxyzstudio](https://appshunter.io/developer/1746910739) |

## What reviewers say

### Chain

[App page](https://appshunter.io/ios/app/chain/id6444040101)

**Features:** macOS Compatibility

**In-app purchases:** none


### BRUXISM + Fix Teeth Grinding

[App page](https://appshunter.io/ios/app/bruxism-plus-fix-teeth-grinding/id6677031502)

This app helps you reduce teeth grinding and clenching for better sleep and jaw health. It offers guided exercises, stress management techniques, and daily monitoring to track your progress. Get relief from nighttime grinding and wake up feeling refreshed.

**Highlights:** Daily monitoring and reports, Guided jaw relaxation exercises, Stress management techniques, Alerts and reminders, User-friendly interface, Evidence-based solutions

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Features | $3.99 | per month |
| Premium Features | $12.99 | per year |


## Frequently asked questions

### Is Chain free?

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

### Is BRUXISM + Fix Teeth Grinding free?

BRUXISM + Fix Teeth Grinding is free to download, with in-app purchases available.

### Do Chain or BRUXISM + Fix Teeth Grinding have ads?

Neither Chain nor BRUXISM + Fix Teeth Grinding shows ads.

### Which is updated more often, Chain or BRUXISM + Fix Teeth Grinding?

Chain ships an update every 9 months, and BRUXISM + Fix Teeth Grinding every 6 weeks. Most recently, Chain was updated on October 6, 2026 and BRUXISM + Fix Teeth Grinding on October 24, 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.*