# Calcu vs Kimsa

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

Both are free to download. Kimsa sells 2 in-app purchases, starting at $6.99 per month. Calcu asks for nothing beyond the download.

Calcu ships an update every 3 days, Kimsa every 3 weeks. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Calcu | Kimsa |
| --- | --- | --- |
| 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 3 weeks |
| Monetization | Free | — |
| Size | 3 MB | 11 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Yuri Morozov](https://appshunter.io/developer/1582368813) | [JEREMIAH LEE LAWRANCE](https://appshunter.io/developer/6788975552) |

## 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


### Kimsa

[App page](https://appshunter.io/ios/app/kimsa-math-practice/id6788975550)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Tutor | $6.99 | per month |
| AI Tutor+ | $9.99 | per month |


## Frequently asked questions

### Is Calcu free?

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

### Is Kimsa free?

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

### Do Calcu or Kimsa have ads?

Neither Calcu nor Kimsa shows ads.

### Which is updated more often, Calcu or Kimsa?

Calcu ships an update every 3 days, and Kimsa every 3 weeks. Most recently, Calcu was updated on November 4, 2026 and Kimsa on November 5, 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.*