# Planet Quest vs Calculus

The clearest difference is in-app purchases: Calculus at none against Planet Quest's 1. Calculus also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Planet Quest sells 1 one-off in-app purchase. Calculus asks for nothing beyond the download.

## The numbers

| Metric | Planet Quest | Calculus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (303 ratings)](https://appshunter.io/ios/app/planet-quest/id922848069/reviews)** | — |
| Number of ratings | **303** | — |
| Positive reviews | 96.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 76 MB | 8 MB |
| Requires iOS | **12.0** | 12.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [OutOfTheBit Ltd](https://appshunter.io/developer/286210012) | [Giro Technology Ltd](https://appshunter.io/developer/1641128177) |

## What reviewers say

### Planet Quest

[App page](https://appshunter.io/ios/app/planet-quest/id922848069)

A new rhythm game where you tap to the beat of diverse music. Unlock new songs and climb leaderboards to become a master. Enjoy endless levels and music with a unique old-school sound tracker.

**Highlights:** Single-tap gameplay, Unlock new songs, Endless levels and music, Weekly high scores, Original music

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ads Free Planet Quest | $0.99 | one-time |

**What reviewers like**

- 👍 Fun and addictive gameplay
- 🎶 Great music and rhythms
- 🎨 Colorful and quirky visuals
- 💰 Good value for free app with optional ad removal

**What reviewers complain about**

- 🐛 Occasional performance issues and crashes
- 🔍 Lack of instructions or tutorial
- 🌺 Frustrating flower obstacles
- 📺 Too many ads before some levels

**Reported bugs**

- Unresponsive controls at times
- Compatibility issues on older devices
- Visuals causing motion sickness for some

**Requested features**

- More music levels and planets
- Difficulty settings or modes
- Ability to import custom music
- Pause/resume functionality


### Calculus

[App page](https://appshunter.io/ios/app/calculus-math-geek/id6451258362)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Planet Quest free?

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

### Is Calculus free?

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

### Do Planet Quest or Calculus have ads?

Planet Quest shows ads; Calculus does not.

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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.*