# Obius vs Tempo

Obius and Tempo are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Obius sells 4 in-app purchases, starting at $4.99 per month and Tempo sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Obius | Tempo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/obius-notes-that-evolve/id6760918821/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | — |
| Monetization | Freemium | — |
| Size | 23 MB | 19 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Demetri Hodges](https://appshunter.io/developer/1886797794) | [Fernan Ochoa Amador](https://appshunter.io/developer/1868704153) |

## What reviewers say

### Obius

[App page](https://appshunter.io/ios/app/obius-notes-that-evolve/id6760918821)

This app offers a visual workspace for organizing notes and ideas. It allows for reusable content blocks, color-coded sections for intent, and AI-powered features for content generation and semantic search. It prioritizes privacy with local-first storage and end-to-end encryption.

**Highlights:** Visual workspace for notes and ideas, Reusable content blocks (Loops), Color-coded sections by intent, AI-powered content generation and search, Version history and snapshots, Offline functionality and end-to-end encryption

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Obius Pro Founder | $4.99 | per month |
| Obius Pro Monthly | $9.99 | per month |
| Pro Annual | $79.99 | per year |
| Power Pack | $9.99 | one-time |


### Tempo

[App page](https://appshunter.io/ios/app/tempo-adhd-calendar-and-planner/id6762128596)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tempo Premium – Monthly | $9.99 | per month |
| Tempo Premium – Annual | $59.99 | per year |


## Frequently asked questions

### Is Obius free?

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

### Is Tempo free?

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

### Do Obius or Tempo have ads?

Neither Obius nor Tempo shows ads.

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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.*