# Math Zen vs Calculus & Probability Lab

The clearest difference is ads: Math Zen at none against Calculus & Probability Lab's shown. On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Math Zen sells 6 in-app purchases, starting at $3.99 per 7 days and Calculus & Probability Lab sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Math Zen | Calculus & Probability Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (6 ratings)](https://appshunter.io/ios/app/math-zen-exam-prep-and-drill/id6758208511/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 82 MB | 58 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ivan Terekhin](https://appshunter.io/developer/888645337) | [MEHMET CANKER (TR)](https://appshunter.io/developer/1565350155) |

## What reviewers say

### Math Zen

[App page](https://appshunter.io/ios/app/math-zen-exam-prep-and-drill/id6758208511)

This app provides adaptive math practice for standardized exams and university-level courses. It generates unique problems, tracks mastery, and offers offline access for focused learning. Review mistakes and visualize concepts to build long-term retention.

**Highlights:** Algorithmically generated problems, Adaptive mastery-based progression, Mistake journal for review, Visual problem explanations, Offline access, Exam-specific problem sets

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Math Zen Premium — Weekly | $3.99 | per 7 days |
| Math Zen Premium — Monthly | $6.99 | per month |
| Math Zen Premium — Annual | $29.99 | per year |
| Math Zen Premium: Lifetime | $24.99 | one-time |
| Math Zen Premium: Lifetime | $29.99 | one-time |
| Math Zen Premium — Lifetime | $39.99 | one-time |


### Calculus & Probability Lab

[App page](https://appshunter.io/ios/app/calculus-and-probability-lab/id6794595111)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CalcProb Lab Pro monthly | $4.99 | per month |
| CalcProb Lab Pro annual | $24.99 | per year |


## Frequently asked questions

### Is Math Zen free?

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

### Is Calculus & Probability Lab free?

Calculus & Probability Lab is free to download, with in-app purchases available.

### Do Math Zen or Calculus & Probability Lab have ads?

Calculus & Probability Lab shows ads; Math Zen 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.*