# Zero by Otto vs FileAI Diary

The clearest difference is update cadence: Zero by Otto at every 5 days against FileAI Diary's every 6 weeks. FileAI Diary's advantage is iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Zero by Otto ships an update every 5 days, FileAI Diary every 6 weeks. The most recent releases landed on June 3, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Zero by Otto | FileAI Diary |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 6 weeks |
| Monetization | Free | — |
| Size | 13 MB | 52 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ludus-Language, Inc.](https://appshunter.io/developer/1818287014) | [Ming Hei Tsui](https://appshunter.io/developer/1725437053) |

## 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


### FileAI Diary

[App page](https://appshunter.io/ios/app/fileai-diary/id6757978519)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Zero by Otto free?

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

### Is FileAI Diary free?

FileAI Diary is free to download, with no in-app purchases.

### Do Zero by Otto or FileAI Diary have ads?

Neither Zero by Otto nor FileAI Diary shows ads.

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

Zero by Otto ships an update every 5 days, and FileAI Diary every 6 weeks. Most recently, Zero by Otto was updated on June 3, 2026 and FileAI Diary on September 18, 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.*