# Calta vs らくらく電卓

The clearest difference is ads: らくらく電卓 at none against Calta's shown. らくらく電卓 also leads on monetization model (free vs ad-supported). Calta's advantage is update cadence (every 3 days vs weekly) and iOS requirement (11.0 vs 15.6). On price, review sentiment, in-app purchases and device support 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, らくらく電卓 weekly. Both last shipped on November 3, 2026.

## The numbers

| Metric | Calta | らくらく電卓 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Weekly |
| Monetization | Ad-supported | **Free** |
| Size | 23 MB | 1 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hiroki Oka](https://appshunter.io/developer/1464653539) | [noboru hizukuri](https://appshunter.io/developer/1537565548) |

## 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


### らくらく電卓

[App page](https://appshunter.io/ios/app/id1540765465)

This simple calculator app keeps a history of your calculations and allows you to edit input formulas. It also features a comparison tool for shopping to easily determine the best value between two items.

**Highlights:** Calculation history and results, Editable input formulas, Copy and paste past calculations, Two-item price comparison, Offline functionality, No internet or account required

**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 らくらく電卓 free?

らくらく電卓 is free to download, with no in-app purchases.

### Do Calta or らくらく電卓 have ads?

Calta shows ads; らくらく電卓 does not.

### Which is updated more often, Calta or らくらく電卓?

Calta ships an update every 3 days, and らくらく電卓 weekly. Most recently, Calta was updated on November 3, 2026 and らくらく電卓 on November 3, 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.*