# 4ToDo vs Due Again

The clearest difference is price: Due Again at Free against 4ToDo's $1.99. 4ToDo's advantage is in-app purchases (none vs 3). On update cadence, ads, device support and iOS requirement there is nothing between them.

Due Again is free to download; 4ToDo costs $1.99 up front. Due Again sells 3 in-app purchases, starting at $2.99 per month. 4ToDo asks for nothing beyond the download.

4ToDo ships an update every 6 months, Due Again every 3 months. The most recent releases landed on October 19, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 4ToDo | Due Again |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 months** |
| Size | 6 MB | 19 MB |
| Requires iOS | 26.0 | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Robert Poetzsch](https://appshunter.io/developer/1860642630) | [Peer Assembly](https://appshunter.io/developer/331884363) |

## What reviewers say

### 4ToDo

[App page](https://appshunter.io/ios/app/4todo/id6760901710)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Due Again

[App page](https://appshunter.io/ios/app/due-again-recurring-tasks/id6779137593)

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Due Again Pro Monthly | $2.99 | per month |
| Due Again Pro Annual | $19.99 | per year |
| Due Again Pro Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is 4ToDo free?

4ToDo costs $1.99, with no in-app purchases.

### Is Due Again free?

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

### Do 4ToDo or Due Again have ads?

Neither 4ToDo nor Due Again shows ads.

### Which is updated more often, 4ToDo or Due Again?

4ToDo ships an update every 6 months, and Due Again every 3 months. Most recently, 4ToDo was updated on October 19, 2026 and Due Again on October 25, 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.*