# Stop Nail Biting vs Scull.fit

The clearest difference is in-app purchases: Scull.fit at none against Stop Nail Biting's 5. Scull.fit also leads on iOS requirement (16.0 vs 18.2). On price there is nothing between them.

Both are free to download. Stop Nail Biting sells 5 in-app purchases, starting at $3.99 per month. Scull.fit asks for nothing beyond the download.

## The numbers

| Metric | Stop Nail Biting | Scull.fit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (10 ratings)](https://appshunter.io/ios/app/stop-nail-biting-calmnails/id6746272768/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Monthly | — |
| Monetization | Free with in-app purchases | — |
| Size | 24 MB | 7 MB |
| Requires iOS | 18.2 | **16.0** |
| Devices | **iPhone** | — |
| Age rating | +4 | 4+ |
| Developer | [Phil Starkovich](https://appshunter.io/developer/1737048219) | [ScatterLab (Pty) Ltd](https://appshunter.io/developer/1857989209) |

## What reviewers say

### Stop Nail Biting

[App page](https://appshunter.io/ios/app/stop-nail-biting-calmnails/id6746272768)

This app helps you quit nail biting through guided awareness exercises. It focuses on noticing sensations to reduce automatic urges, requiring just one minute of practice twice daily. Track your progress with streaks and build a healthier relationship with your hands.

**Highlights:** Guided curiosity sessions, Daily awareness practice, Supportive reminders, Streak tracking, No guilt or shame approach, Science-inspired habit rewiring

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Commit to Quit - Monthly | $3.99 | per month |
| Commit to Quit - Monthly w/ Trial | $3.99 | per month |
| Commit to Quit (Annual) | $19.99 | per year |
| Commit to Quit - Lifetime (Special) | $9.99 | one-time |
| Commit to Quit (Lifetime) | $19.99 | one-time |


### Scull.fit

[App page](https://appshunter.io/ios/app/scullfit/id6760979137)

**In-app purchases:** none


## Frequently asked questions

### Is Stop Nail Biting free?

Stop Nail Biting is free to download, with in-app purchases available.

### Is Scull.fit free?

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

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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.*