# Calculation Sheet vs Charge the Robot

The clearest difference is price: Charge the Robot at Free against Calculation Sheet's $0.99. Charge the Robot also leads on device support. Calculation Sheet's advantage is in-app purchases (none vs 4). On iOS requirement there is nothing between them.

Charge the Robot is free to download; Calculation Sheet costs $0.99 up front. Charge the Robot sells 4 in-app purchases, starting at $7.99 per month. Calculation Sheet asks for nothing beyond the download.

## The numbers

| Metric | Calculation Sheet | Charge the Robot |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.3 (63 ratings)](https://appshunter.io/ios/app/charge-the-robot/id1532398652/reviews)** |
| Number of ratings | — | **63** |
| Positive reviews | — | 70.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 4 months |
| Monetization | — | Free with in-app purchases |
| Size | 13 MB | 309 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [APP Technology Co. Ltd.](https://appshunter.io/developer/524936444) | [Learny Land](https://appshunter.io/developer/1380183676) |

## What reviewers say

### Calculation Sheet

[App page](https://appshunter.io/ios/app/calculation-sheet/id1008546965)

**In-app purchases:** none


### Charge the Robot

[App page](https://appshunter.io/ios/app/charge-the-robot/id1532398652)

Solve logic puzzles by manipulating gears, water, and steam to power a robot. Explore mechanisms and learn the basics of electricity, mechanics, and physics in a stress-free environment. Create and share your own levels.

**Highlights:** Over 100 levels, Free play, no rules or stress, Learn electricity, mechanics, physics, Develop logic and problem-solving skills, 3 distinct worlds: gears, water, steam, Create and share custom levels, Includes a theory section for expanded learning

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Learny Land Pass - Monthly | $7.99 | per month |
| Learny Land Pass - Monthly | $8.99 | per month |
| Learny Land Pass - Annual | $39.99 | per year |
| Learny Land Pass - Annual | $49.99 | per year |


## Frequently asked questions

### Is Calculation Sheet free?

Calculation Sheet costs $0.99, with no in-app purchases.

### Is Charge the Robot free?

Charge the Robot is free to download, with in-app purchases available.

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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.*