# ADHD Timer vs Mast

The clearest difference is iOS requirement: ADHD Timer at 15.1 against Mast's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. ADHD Timer sells 3 in-app purchases, starting at $1.99 per month and Mast sells 2 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 22, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ADHD Timer | Mast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/adhd-timer-end-time-blindness/id6762622987/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Freemium | — |
| Size | 42 MB | 81 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Maciej Planeta](https://appshunter.io/developer/1892474710) | [Thomas Bryden](https://appshunter.io/developer/6789959069) |

## What reviewers say

### ADHD Timer

[App page](https://appshunter.io/ios/app/adhd-timer-end-time-blindness/id6762622987)

This app makes time visible with a color-changing screen and vibration pulses as deadlines approach. It helps you accurately estimate task durations by tracking actual time spent versus your guesses, improving future planning.

**Highlights:** Visual countdown timer with color changes, Task mode for estimating and tracking time, Planning multiplier for estimate accuracy, Focus routines for sequential timers, Home screen widget for quick start, Colorblind-friendly palette

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Annually | $14.99 | per year |
| Lifetime | $29.99 | one-time |


### Mast

[App page](https://appshunter.io/ios/app/mast-commitment-app-blocker/id6792932756)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mast Plus - Weekly | $7.99 | per 7 days |
| Mast Plus - Yearly | $49.99 | per year |


## Frequently asked questions

### Is ADHD Timer free?

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

### Is Mast free?

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

### Do ADHD Timer or Mast have ads?

Neither ADHD Timer nor Mast shows ads.

### Which is updated more often, ADHD Timer or Mast?

ADHD Timer ships an update every 2 weeks, and Mast every 2 weeks. Most recently, ADHD Timer was updated on October 22, 2026 and Mast on October 25, 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.*