# Causality vs Ouros

The clearest difference is rating: Ouros at 4.9 against Causality's 4.4. Ouros also leads on review sentiment (90% vs 70%). Causality's advantage is price ($1.99 vs $2.99) and iOS requirement (11.0 vs 13.0). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

Causality costs $1.99 and Ouros $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Ouros holds the better App Store score, 4.9 against 4.4. Both are backed by a comparable volume of ratings — 185 and 82 respectively. Written reviews point the same way: 70% of Causality's written reviews are positive against 90% of Ouros's.

Causality ships an update every 3 months, Ouros every 5 months. The most recent releases landed on October 1, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Causality | Ouros |
| --- | --- | --- |
| Price | **$1.99** | $2.99 |
| Rating | [4.4 (185 ratings)](https://appshunter.io/ios/app/causality/id928945016/reviews) | **[4.9 (82 ratings)](https://appshunter.io/ios/app/ouros/id6475737476/reviews)** |
| Number of ratings | **185** | 82 |
| Positive reviews | 69.8% of reviews | **90.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Paid | Paid |
| Size | 166 MB | 138 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Loju LTD](https://appshunter.io/developer/928945015) | [Michael Kamm](https://appshunter.io/developer/1504129596) |

## What reviewers say

### Causality

[App page](https://appshunter.io/ios/app/causality/id928945016)

Manipulate time to solve intricate puzzles and guide stranded astronauts to safety. Work with your past selves across alien landscapes to overcome paradoxes and complete hazardous levels within a time limit.

**Highlights:** Manipulate time to change level outcomes, Work with past selves, Solve paradoxes, Guide astronauts to safety, 60 challenging levels, Unlock achievements

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Unique and challenging puzzles
- 👍 Intuitive and easy-to-use UI
- 🎨 Beautiful graphics and sound design
- 💡 Innovative time travel mechanics
- 🧠 Mind-bending gameplay

**What reviewers complain about**

- 🐛 Bugs and glitches in certain levels
- 🤔 Lack of clear instructions or tutorials
- 🕹️ Unintuitive controls on some devices
- 🔁 Repetitive gameplay after a while

**Reported bugs**

- Certain levels (e.g. 307, 407, 410) not working as expected
- Game crashing or freezing on some devices
- Issues with achievements not unlocking properly

**Requested features**

- More levels and content
- Ability to replay completed levels
- Cloud save/sync support
- Difficulty settings or options


### Ouros

[App page](https://appshunter.io/ios/app/ouros/id6475737476)

A relaxing puzzle game where you manipulate curves to match targets in a serene environment. Discover the mathematical beauty of shapes with over 120 handcrafted levels. Enjoy a fluid, stress-free experience with intuitive controls and dynamic visuals.

**Highlights:** Original spline-based control scheme, Lush visuals and dynamic soundscapes, Flexible level progression and hint system, Intuitive multi-touch controls, Fluid gameplay without timers or scores

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

**In-app purchases:** none

**What reviewers like**

- 🎨 Gorgeous visuals and art direction
- 🎶 Beautiful music and sound design
- 🧠 Intellectually challenging and clever puzzles
- 🧘 Relaxing and calming gameplay experience
- 👍 Smooth introduction of new concepts and mechanics

**What reviewers complain about**

- ⏳ Too short for the price
- 📱 Landscape mode only (inconvenient for some)
- 🔊 Sound/SFX not working for some users
- ❓ Lack of clear instructions for some
- 🎛️ Constant 'bongs' can be distracting

**Reported bugs**

- Sound/SFX not working on iPhone
- Numbers are sideways in portrait mode
- Issue getting into corners with no running room on iPad

**Requested features**

- Add more levels
- Add Watch support
- Allow playing own music in the background
- Option to change orientation to portrait mode
- iCloud sync for progress across devices


## Frequently asked questions

### Is Causality free?

Causality costs $1.99, with no in-app purchases.

### Is Ouros free?

Ouros costs $2.99, with no in-app purchases.

### Which has better reviews, Causality or Ouros?

Ouros is rated higher. Causality averages 4.4 out of 5 from 185 ratings, while Ouros averages 4.9 from 82 ratings.

### Do Causality or Ouros have ads?

Neither Causality nor Ouros shows ads.

### Which is updated more often, Causality or Ouros?

Causality ships an update every 3 months, and Ouros every 5 months. Most recently, Causality was updated on October 1, 2026 and Ouros on September 29, 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.*