# ThreeForMe vs Calibrate

The clearest difference is price: Calibrate at Free against ThreeForMe's $0.99. ThreeForMe's advantage is in-app purchases (none vs 2) and update cadence (every 5 days vs every 2 weeks). On ads, device support and iOS requirement there is nothing between them.

Calibrate is free to download; ThreeForMe costs $0.99 up front. Calibrate sells 2 in-app purchases, starting at $8.99 per month. ThreeForMe asks for nothing beyond the download.

ThreeForMe ships an update every 5 days, Calibrate every 2 weeks. The most recent releases landed on October 7, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | ThreeForMe | Calibrate |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 weeks |
| Size | 1 MB | 41 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Sven Rothsching](https://appshunter.io/developer/1850819630) | [Mads Borg Hundahl](https://appshunter.io/developer/1882736185) |

## What reviewers say

### ThreeForMe

[App page](https://appshunter.io/ios/app/threeforme-mindfulness/id6756029800)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Calibrate

[App page](https://appshunter.io/ios/app/calibrate-adhd-med-tracker/id6766873101)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $8.99 | per month |
| Yearly | $49.99 | per year |


## Frequently asked questions

### Is ThreeForMe free?

ThreeForMe costs $0.99, with no in-app purchases.

### Is Calibrate free?

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

### Do ThreeForMe or Calibrate have ads?

Neither ThreeForMe nor Calibrate shows ads.

### Which is updated more often, ThreeForMe or Calibrate?

ThreeForMe ships an update every 5 days, and Calibrate every 2 weeks. Most recently, ThreeForMe was updated on October 7, 2026 and Calibrate on October 19, 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.*