# On vs ADHD Timer

The clearest difference is in-app purchases: On at none against ADHD Timer's 3. ADHD Timer's advantage is update cadence (every 8 days vs every 6 weeks) and device support. On price there is nothing between them.

Both are free to download. ADHD Timer sells 3 in-app purchases, starting at $1.99 per month. On asks for nothing beyond the download.

On ships an update every 6 weeks, ADHD Timer every 8 days. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | On | ADHD Timer |
| --- | --- | --- |
| 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 | **No** | Yes |
| Ads | — | No |
| Update frequency | Every 6 weeks | **Every 8 days** |
| Monetization | — | Freemium |
| Size | 13 MB | 42 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | — | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Digital Advisory Limited](https://appshunter.io/developer/1707419200) | [Maciej Planeta](https://appshunter.io/developer/1892474710) |

## What reviewers say

### On

[App page](https://appshunter.io/ios/app/on-timer/id6505042448)

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is On free?

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

### Is ADHD Timer free?

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

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

On ships an update every 6 weeks, and ADHD Timer every 8 days. Most recently, On was updated on October 7, 2026 and ADHD Timer on October 5, 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.*