# Calcu vs Pure Math Pro

The clearest difference is in-app purchases: Calcu at none against Pure Math Pro's 10. Calcu also leads on update cadence (every 3 days vs every 11 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Pure Math Pro sells 10 one-off in-app purchases. Calcu asks for nothing beyond the download.

Calcu ships an update every 3 days, Pure Math Pro every 11 months. The most recent releases landed on June 8, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Calcu | Pure Math Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/calcu-logarithm/id6698852208/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 11 months |
| Monetization | Free | — |
| Size | 3 MB | 40 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yuri Morozov](https://appshunter.io/developer/1582368813) | [Richard Ssenyonjo](https://appshunter.io/developer/1528776742) |

## What reviewers say

### Calcu

[App page](https://appshunter.io/ios/app/calcu-logarithm/id6698852208)

This app provides advanced logarithmic calculations and explanations, covering equation solving, Taylor series, digit-by-digit computation, and integral definitions. It also simplifies expressions, solves complex logarithmic equations, and includes a virtual slide rule.

**Highlights:** Solves logarithmic equations for y, x, and a, Explains Taylor series for log_e(x), Illustrates digit-by-digit log_10(x) computation, Explains log_e definition via integrals, Simplifies logarithmic expressions, Calculates and graphs complex logarithms, Includes virtual slide rule

**Features:** macOS Compatibility

**In-app purchases:** none


### Pure Math Pro

[App page](https://appshunter.io/ios/app/pure-math-pro/id6740227640)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get 1,000 Coins | $0.99 | one-time |
| Get 5,000 Coins | $1.99 | one-time |
| Algebra 2 | $2.99 | one-time |
| Series | $2.99 | one-time |
| Trigonometry 1 | $2.99 | one-time |
| Coordinate Geometry | $2.99 | one-time |
| Coordinate Geometry 2 | $2.99 | one-time |
| Complex Numbers | $2.99 | one-time |
| Vectors in 3D | $2.99 | one-time |
| Get 10,000 Coins | $2.99 | one-time |


## Frequently asked questions

### Is Calcu free?

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

### Is Pure Math Pro free?

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

### Do Calcu or Pure Math Pro have ads?

Neither Calcu nor Pure Math Pro shows ads.

### Which is updated more often, Calcu or Pure Math Pro?

Calcu ships an update every 3 days, and Pure Math Pro every 11 months. Most recently, Calcu was updated on June 8, 2026 and Pure Math Pro on September 14, 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.*