# Dogl Calculus vs Complex(Math Drills)

The clearest difference is in-app purchases: Complex(Math Drills) at none against Dogl Calculus's 3. Complex(Math Drills) also leads on update cadence (every 2 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Dogl Calculus sells 3 one-off in-app purchases. Complex(Math Drills) asks for nothing beyond the download.

Dogl Calculus ships an update every 2 months, Complex(Math Drills) every 2 weeks. The most recent releases landed on September 29, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Dogl Calculus | Complex(Math Drills) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (147 ratings)](https://appshunter.io/ios/app/dogl-calculus/id1554140181/reviews)** | — |
| Number of ratings | **147** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 39 MB | 20 MB |
| Requires iOS | **15.0** | 15.2 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dogl](https://appshunter.io/developer/1554140183) | [郷 田村](https://appshunter.io/developer/1574588679) |

## What reviewers say

### Dogl Calculus

[App page](https://appshunter.io/ios/app/dogl-calculus/id1554140181)

Master calculus with this mobile app designed by university professors. It offers bite-sized problem-solving, personalized learning paths, and hints to guide you through challenging concepts. Start with free practice problems and unlock more weekly.

**Highlights:** Bite-sized problem-solving, Personalized learning paths, Weekly free problems, Teacher's Eye™ hints, Ad-free experience, Expert-designed content

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Plan - 1 month | $4.99 | one-time |
| Unlimited Plan - 4 months | $14.99 | one-time |
| Unlimited Plan - 1 year | $24.99 | 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 Dogl Calculus free?

Dogl 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 Dogl Calculus or Complex(Math Drills) have ads?

Neither Dogl Calculus nor Complex(Math Drills) shows ads.

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

Dogl Calculus ships an update every 2 months, and Complex(Math Drills) every 2 weeks. Most recently, Dogl Calculus was updated on September 29, 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.*