# Zero by Otto vs Boxday

The clearest difference is in-app purchases: Zero by Otto at none against Boxday's 2. Zero by Otto also leads on ads (none vs shown) and device support (3 vs 1). On price, update cadence and iOS requirement there is nothing between them.

Both are free to download. Boxday sells 2 in-app purchases, starting at $2.99 per month. Zero by Otto asks for nothing beyond the download.

Zero by Otto ships an update every 5 days, Boxday weekly. Both last shipped on October 6, 2026.

## The numbers

| Metric | Zero by Otto | Boxday |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/zero-by-otto/id6746745586/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Weekly |
| Monetization | Free | — |
| Size | 13 MB | 9 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ludus-Language, Inc.](https://appshunter.io/developer/1818287014) | [HYUNWOO LEE](https://appshunter.io/developer/1896516002) |

## What reviewers say

### Zero by Otto

[App page](https://appshunter.io/ios/app/zero-by-otto/id6746745586)

This task management app offers a minimalist approach to productivity. Unfinished tasks automatically roll over to the next day, ensuring nothing gets lost. Organize tasks into projects, create reusable lists, and collaborate with others.

**Highlights:** Automatic task rollover, Today view, Drag and drop rescheduling, Project organization, Shared projects for collaboration, Reusable checklists, Desktop widget

**In-app purchases:** none


### Boxday

[App page](https://appshunter.io/ios/app/boxday/id6773940806)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Boxday Monthly | $2.99 | per month |
| Boxday Annual | $15.99 | per year |


## Frequently asked questions

### Is Zero by Otto free?

Zero by Otto is free to download, with no in-app purchases.

### Is Boxday free?

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

### Do Zero by Otto or Boxday have ads?

Boxday shows ads; Zero by Otto does not.

### Which is updated more often, Zero by Otto or Boxday?

Zero by Otto ships an update every 5 days, and Boxday weekly. Most recently, Zero by Otto was updated on October 6, 2026 and Boxday on October 6, 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.*