# MetaTimer Timeboxing for ADHD vs One & Three

The clearest difference is in-app purchases: MetaTimer Timeboxing for ADHD at none against One & Three's 4. One & Three's advantage is update cadence (daily vs every 3 weeks). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. One & Three sells 4 one-off in-app purchases. MetaTimer Timeboxing for ADHD asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for MetaTimer Timeboxing for ADHD against 5.0 for One & Three. Both are backed by a comparable volume of ratings — 3 and 5 respectively.

MetaTimer Timeboxing for ADHD ships an update every 3 weeks, One & Three daily. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | MetaTimer Timeboxing for ADHD | One & Three |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/metatimer-timeboxing-for-adhd/id6738656386/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/one-and-three/id6744300646/reviews) |
| Number of ratings | 3 | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Daily** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 43 MB | 4 MB |
| Requires iOS | **16.6** | 17.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Oleh Pavliv](https://appshunter.io/developer/1777478481) | [Scott Curry](https://appshunter.io/developer/1214356980) |

## What reviewers say

### MetaTimer Timeboxing for ADHD

[App page](https://appshunter.io/ios/app/metatimer-timeboxing-for-adhd/id6738656386)

This app helps individuals with time blindness and task initiation challenges by providing a flexible timeboxing system. It allows users to plan their day with visual timelines and focus on tasks with distraction-free sessions, offering gentle guidance for better productivity.

**Highlights:** Flexible timeboxing, Visual timeline view, Distraction-free focus timer, Task estimation vs. actual time tracking, Routine creation, Finish by prediction, Calendar and Reminders integration

**In-app purchases:** none


### One & Three

[App page](https://appshunter.io/ios/app/one-and-three/id6744300646)

This productivity app helps you focus on your most important tasks with a simple, minimalist design. It limits your daily focus to one main task and up to three supporting tasks, reducing overwhelm and decision fatigue.

**Highlights:** Focus on one main task daily, Add up to three supporting tasks, Minimalist and calming design, Quick entry with no distractions, Simple gestures and intuitive flow, Reduces decision fatigue

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small | $1.99 | one-time |
| Medium | $4.99 | one-time |
| Large | $9.99 | one-time |
| Extra-Large | $24.99 | one-time |


## Frequently asked questions

### Is MetaTimer Timeboxing for ADHD free?

MetaTimer Timeboxing for ADHD is free to download, with no in-app purchases.

### Is One & Three free?

One & Three is free to download, with in-app purchases available.

### Which has better reviews, MetaTimer Timeboxing for ADHD or One & Three?

MetaTimer Timeboxing for ADHD and One & Three are both rated 5.0 out of 5 on the App Store, from 3 and 5 ratings respectively.

### Do MetaTimer Timeboxing for ADHD or One & Three have ads?

Neither MetaTimer Timeboxing for ADHD nor One & Three shows ads.

### Which is updated more often, MetaTimer Timeboxing for ADHD or One & Three?

MetaTimer Timeboxing for ADHD ships an update every 3 weeks, and One & Three daily. Most recently, MetaTimer Timeboxing for ADHD was updated on November 4, 2026 and One & Three on October 30, 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.*