# One Big Thing — The simplest todo app

> The simplest todo app (iPhone/iPad app by Thomas Chatting.)

- Source: https://appshunter.io/ios/app/one-big-thing/id6745229950 (this page in markdown: same URL + `.md`)
- Developer: [Thomas Chatting](https://appshunter.io/developer/1811425476)
- Category: Productivity, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 17.6 · 1 MB
- Languages: American English
- Released: 2025-05-01
- Data updated: 2026-02-23
- User reviews in markdown: https://appshunter.io/ios/app/one-big-thing/id6745229950/reviews.md

## What is One Big Thing?

A Todo app with ONE big difference. Set an intention for your day with one big thing.
Review your previous Big Things.
Receive notifications to remind you to check in on your big thing, and mark it as complete if you've done it.


## Version history (last 3 releases)

### 1.2 — 2025-09-22

Compiled for iOS26

### 1.1 — 2025-05-02

Emptying today's Thing now deletes it from the history.
Corrects share link after completing your thing.
Fixes a bug where yesterday's thing persists after midnight.

### 1.0 — 2025-05-01

No release notes.

## Apps similar to One Big Thing

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Just One Thing](https://appshunter.io/ios/app/just-one-thing/id6747953045) | — | Free | Productivity |
| [Visual Countdown Pixel Timer](https://appshunter.io/ios/app/visual-countdown-pixel-timer/id6460258766) | 5.0 (2) | Free | Productivity |
| [RGUC Connect](https://appshunter.io/ios/app/rguc-connect/id1392929303) | — | Free | Productivity |
| [Futureland – Goal Tracker](https://appshunter.io/ios/app/futureland/id6738955445) | 5.0 (12) | Free | Productivity |
| [MindMap - MindMapper](https://appshunter.io/ios/app/mindmap/id6736729888) | — | Free | Productivity |
| [Rocket 135: To-Do List & Tasks](https://appshunter.io/ios/app/rocket-135/id1505492374) | 5.0 (12) | Free | Productivity |

## More apps by Thomas Chatting

- [Watch Hydration](https://appshunter.io/ios/app/watch-hydration/id6745416167)
- [Eat Aware](https://appshunter.io/ios/app/eat-aware/id6758560897)

All apps by Thomas Chatting: https://appshunter.io/developer/1811425476

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-02-23.*