# Zero by Otto vs Prio.Space

Zero by Otto and Prio.Space both sit at 5.0 stars, but that hides the real split: 100% of Zero by Otto's written reviews are positive against 50% of Prio.Space's. Zero by Otto also leads on update cadence (every 5 days vs every 3 months). Prio.Space's advantage is iOS requirement (14.0 vs 16.0). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Zero by Otto against 5.0 for Prio.Space. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews are what separate them: 100% of Zero by Otto's written reviews are positive against 50% of Prio.Space's.

Zero by Otto ships an update every 5 days, Prio.Space every 3 months. The most recent releases landed on June 3, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Zero by Otto | Prio.Space |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/zero-by-otto/id6746745586/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/priospace/id6752712865/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 months |
| Monetization | Free | Free |
| Size | 13 MB | 7 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone, iPad, Mac | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Ludus-Language, Inc.](https://appshunter.io/developer/1818287014) | [Anoy Roy Chowdhury](https://appshunter.io/developer/1840660665) |

## 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


### Prio.Space

[App page](https://appshunter.io/ios/app/priospace/id6752712865)

This app combines task management, a Pomodoro timer, and habit tracking into a single, user-friendly interface. It aims to streamline your workflow by eliminating the need to switch between multiple productivity tools. Enjoy a completely free experience with a focus on user privacy and task sharing capabilities.

**Highlights:** Task management, Pomodoro timer, Habit tracking, Task sharing, User privacy focus, No hidden paywalls

**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 Prio.Space free?

Prio.Space is free to download, with no in-app purchases.

### Which has better reviews, Zero by Otto or Prio.Space?

Zero by Otto and Prio.Space are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Zero by Otto or Prio.Space have ads?

Neither Zero by Otto nor Prio.Space shows ads.

### Which is updated more often, Zero by Otto or Prio.Space?

Zero by Otto ships an update every 5 days, and Prio.Space every 3 months. Most recently, Zero by Otto was updated on June 3, 2026 and Prio.Space on September 10, 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.*