# Achy vs UNTETHER

The clearest difference is in-app purchases: UNTETHER at none against Achy's 6. UNTETHER also leads on update cadence (every 5 weeks vs every 5 months). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Achy sells 6 in-app purchases, starting at $4.99 per year. UNTETHER asks for nothing beyond the download.

Achy ships an update every 5 months, UNTETHER every 5 weeks. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Achy | UNTETHER |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (19 ratings)](https://appshunter.io/ios/app/achy-headache-tracker/id6550894097/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 5 weeks** |
| Monetization | Freemium | **Free** |
| Size | 69 MB | 28 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Atom Spark Software, LLC.](https://appshunter.io/developer/1757755518) | [Harry West](https://appshunter.io/developer/1860170534) |

## What reviewers say

### Achy

[App page](https://appshunter.io/ios/app/achy-headache-tracker/id6550894097)

Easily track headache occurrences, symptoms, and potential triggers. Visualize your data with charts and graphs, and generate PDF reports for your healthcare provider. Customize the app to suit your needs and maintain a detailed headache log.

**Highlights:** Headache tracking and logging, Customizable variables, Data visualization with charts, PDF report generation, Calendar view, Data import and export

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Wellness Warrior | $4.99 | per year |
| Migraine Maverick | $9.99 | per year |
| Headache Hero | $19.99 | per year |
| Relief Supporter | $0.99 | one-time |
| Comfort Contributor | $2.99 | one-time |
| Pain Relief Partner | $4.99 | one-time |


### UNTETHER

[App page](https://appshunter.io/ios/app/untether-resist-the-pull/id6757411764)

This app helps you resist the impulse to constantly check your phone. It uses a timer and a 'kill switch' to encourage you to stay present and disconnect from your device. Compete individually or with teams on leaderboards.

**Highlights:** Timer-based phone disconnection, Kill switch for integrity, Syndicates for team competition, Global leaderboards, Ranking system with titles, Offline functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is Achy free?

Achy is free to download, with in-app purchases available.

### Is UNTETHER free?

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

### Do Achy or UNTETHER have ads?

Neither Achy nor UNTETHER shows ads.

### Which is updated more often, Achy or UNTETHER?

Achy ships an update every 5 months, and UNTETHER every 5 weeks. Most recently, Achy was updated on November 4, 2026 and UNTETHER on October 31, 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.*