# Operation Calculus vs Math for Kids

The clearest difference is in-app purchases: Operation Calculus at none against Math for Kids's 7. Operation Calculus also leads on iOS requirement (8.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Math for Kids sells 7 in-app purchases, starting at $3.99 per 7 days. Operation Calculus asks for nothing beyond the download.

## The numbers

| Metric | Operation Calculus | Math for Kids |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/math-for-kids-learning-games/id6759191290/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Monetization | — | Freemium |
| Size | 27 MB | 12 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [RX Labz](https://appshunter.io/developer/1223459761) | [Youssef Ziat](https://appshunter.io/developer/1871790298) |

## What reviewers say

### Operation Calculus

[App page](https://appshunter.io/ios/app/operation-calculus/id1461707284)

**Features:** macOS Compatibility

**In-app purchases:** none


### Math for Kids

[App page](https://appshunter.io/ios/app/math-for-kids-learning-games/id6759191290)

This app provides daily math practice for children aged 5-8, focusing on addition, subtraction, multiplication, and division. It features adaptive sessions, mistake review, and progress tracking for parents. Premium access offers enhanced personalization and detailed insights.

**Highlights:** Adaptive daily math sessions, Addition, subtraction, multiplication, division practice, Smart mistake review, Progress dashboard, Kid-friendly learning feedback, Premium personalized practice

**Features:** Family Sharing

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kids Math Weekly | $3.99 | per 7 days |
| Kids Math Monthly | $5.99 | per month |
| Kids Math Monthly | $9.99 | per month |
| Kids Math Yearly | $19.99 | per year |
| Kids Math Yearly | $29.99 | per year |
| Lifetime Access | $39.99 | one-time |
| Lifetime Access | $44.99 | one-time |


## Frequently asked questions

### Is Operation Calculus free?

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

### Is Math for Kids free?

Math for Kids is free to download, with in-app purchases available.

### Do Operation Calculus or Math for Kids have ads?

Neither Operation Calculus nor Math for Kids shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*