# Calta vs KuCalc

The clearest difference is ads: KuCalc at none against Calta's shown. Calta's advantage is update cadence (every 3 days vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Calta ships an update every 3 days, KuCalc every 3 months. The most recent releases landed on June 4, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Calta | KuCalc |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 3 months |
| Monetization | Ad-supported | — |
| Size | 23 MB | 1 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Hiroki Oka](https://appshunter.io/developer/1464653539) | [Mineaki Sakatoku](https://appshunter.io/developer/1674976728) |

## What reviewers say

### Calta

[App page](https://appshunter.io/ios/app/calta/id1499265833)

This calculator app offers advanced features like equation display, calculation history, and redo/undo functionality for easier use. Customize backgrounds and button shapes, and perform tax calculations with adjustable rates. It supports up to 20 digits and respects order of operations.

**Highlights:** Equation display, Calculation history, Redo and Undo functions, Customizable background, Customizable button shape, Tax calculation, Order of operations support

**Features:** macOS Compatibility

**In-app purchases:** none


### KuCalc

[App page](https://appshunter.io/ios/app/kucalc/id6445941447)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calta free?

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

### Is KuCalc free?

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

### Do Calta or KuCalc have ads?

Calta shows ads; KuCalc does not.

### Which is updated more often, Calta or KuCalc?

Calta ships an update every 3 days, and KuCalc every 3 months. Most recently, Calta was updated on June 4, 2026 and KuCalc on September 20, 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.*