# One Great Thing vs ADHD Tool

The clearest difference is price: One Great Thing at Free against ADHD Tool's $3.99. ADHD Tool's advantage is chart position (#187 vs unranked). On update cadence, ads, in-app purchases and device support there is nothing between them.

One Great Thing is free to download; ADHD Tool costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

One Great Thing ships an update every 8 months, ADHD Tool every 10 months. The most recent releases landed on August 9, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | One Great Thing | ADHD Tool |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/adhd-tool-do-this/id6563141268/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 10 months |
| Monetization | — | Paid |
| Best chart rank | — | **#187** |
| Size | 1 MB | 2 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Finite Fractal Studios, LLC](https://appshunter.io/developer/1746186301) | [Edward Prokopik](https://appshunter.io/developer/1077587110) |

## What reviewers say

### One Great Thing

[App page](https://appshunter.io/ios/app/one-great-thing/id6502617972)

**In-app purchases:** none


### ADHD Tool

[App page](https://appshunter.io/ios/app/adhd-tool-do-this/id6563141268)

**Currently charting:** #187 Top Paid · Productivity (US App Store)

This minimalist task tracker helps you focus on a single priority at a time. It encourages completing one task before moving to the next, moving away from overwhelming to-do lists. Features include Live Activities, widgets, and an Apple Watch app for on-the-go management.

**Highlights:** Single task focus, Live Activities integration, Widget support, Apple Watch app, Minimalist interface

**In-app purchases:** none


## Frequently asked questions

### Is One Great Thing free?

One Great Thing is free to download, with no in-app purchases.

### Is ADHD Tool free?

ADHD Tool costs $3.99, with no in-app purchases.

### Do One Great Thing or ADHD Tool have ads?

Neither One Great Thing nor ADHD Tool shows ads.

### Which is updated more often, One Great Thing or ADHD Tool?

One Great Thing ships an update every 8 months, and ADHD Tool every 10 months. Most recently, One Great Thing was updated on August 9, 2026 and ADHD Tool on September 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*