# Calculus vs Complex(Math Drills)

The clearest difference is in-app purchases: Complex(Math Drills) at none against Calculus's 13. Complex(Math Drills) also leads on update cadence (every 2 weeks vs every 16 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Calculus sells 13 one-off in-app purchases. Complex(Math Drills) asks for nothing beyond the download.

Calculus ships an update every 16 months, Complex(Math Drills) every 2 weeks. The most recent releases landed on July 19, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Calculus | Complex(Math Drills) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (4 ratings)](https://appshunter.io/ios/app/calculus-pro/id1638196645/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 40 MB | 20 MB |
| Requires iOS | **15.0** | 15.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Richard Ssenyonjo](https://appshunter.io/developer/1528776742) | [郷 田村](https://appshunter.io/developer/1574588679) |

## What reviewers say

### Calculus

[App page](https://appshunter.io/ios/app/calculus-pro/id1638196645)

Learn calculus comprehensively through 10 chapters and reinforce your understanding with an interactive quiz game. This app caters to both beginners and advanced learners, offering hints and challenging problems. Enjoy a clear, adaptable interface with font size adjustments and light/dark mode support.

**Highlights:** 10-chapter calculus curriculum, Interactive calculus quiz game, Beginner to advanced learning paths, Adjustable font size, Light and dark mode support, Covers differentiation, integration, and differential equations

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get 1,000 Coins | $0.99 | one-time |
| Get 5,000 Coins | $1.99 | one-time |
| Get 10,000 Coins | $2.99 | one-time |
| Unlock Calculus 1 | $2.99 | one-time |
| Unlock Calculus 2 | $2.99 | one-time |
| Unlock Calculus 3 | $2.99 | one-time |
| Unlock Chapter 5 | $2.99 | one-time |
| Unlock Calculus 8 | $2.99 | one-time |
| Unlock Calculus 9 | $2.99 | one-time |
| Unlock Calculus 4 | $2.99 | one-time |
| Unlock Calculus 6 | $2.99 | one-time |
| Unlock Calculus 7 | $2.99 | one-time |
| Unlock Calculus 10 | $2.99 | one-time |


### Complex(Math Drills)

[App page](https://appshunter.io/ios/app/complexmath-drills/id6443714418)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calculus free?

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

### Is Complex(Math Drills) free?

Complex(Math Drills) is free to download, with no in-app purchases.

### Do Calculus or Complex(Math Drills) have ads?

Neither Calculus nor Complex(Math Drills) shows ads.

### Which is updated more often, Calculus or Complex(Math Drills)?

Calculus ships an update every 16 months, and Complex(Math Drills) every 2 weeks. Most recently, Calculus was updated on July 19, 2026 and Complex(Math Drills) on September 11, 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.*