# Three Todo vs Didly

The clearest difference is price: Didly at Free against Three Todo's $0.99. Didly also leads on update cadence (every 4 days vs every 12 months). Three Todo's advantage is in-app purchases (none vs 1). On review sentiment, ads, device support and iOS requirement there is nothing between them.

Didly is free to download; Three Todo costs $0.99 up front. Didly sells 1 in-app purchase, starting at $4.99 per year. Three Todo asks for nothing beyond the download.

Three Todo ships an update every 12 months, Didly every 4 days. The most recent releases landed on October 2, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Three Todo | Didly |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.9 (16 ratings)](https://appshunter.io/ios/app/three-todo/id882164264/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 4 days** |
| Monetization | Paid | **Freemium** |
| Size | 9 MB | 14 MB |
| Requires iOS | **17.6** | 18.1 |
| Devices | iPhone, Apple Watch | **iPhone, iPad, Mac** |
| Age rating | 9+ | 4+ |
| Developer | [Jeffrey Lai](https://appshunter.io/developer/1630879658) | [rakTech LLC](https://appshunter.io/developer/1506245082) |

## What reviewers say

### Three Todo

[App page](https://appshunter.io/ios/app/three-todo/id882164264)

This task management app focuses on simplicity by presenting only three tasks at a time. It offers three actions: Done, Defer, or Drop, to help users manage their to-do list without added stress or complexity.

**Highlights:** Focus on 3 tasks at a time, Stress-free task management, Action tasks: Done, Defer, or Drop, Minimalist and non-intrusive design, Prioritizes tasks based on user actions

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


### Didly

[App page](https://appshunter.io/ios/app/didly-hack-your-productivity/id6503087781)

Focus on your accomplishments to build momentum and boost your mood. Log completed tasks, track time, and visualize your progress with insightful charts. Seamlessly integrate with Apple Reminders and export your data in multiple formats.

**Highlights:** Log completed tasks, Automatic time logging, Customizable tagging system, Visual activity charts, Data export (CSV, JSON, Text), Apple Reminders integration, iCloud support

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Annual Plan | $4.99 | per year |


## Frequently asked questions

### Is Three Todo free?

Three Todo costs $0.99, with no in-app purchases.

### Is Didly free?

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

### Do Three Todo or Didly have ads?

Neither Three Todo nor Didly shows ads.

### Which is updated more often, Three Todo or Didly?

Three Todo ships an update every 12 months, and Didly every 4 days. Most recently, Three Todo was updated on October 2, 2026 and Didly on October 8, 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.*