# iCalculator vs Customizable calculator

The clearest difference is price: Customizable calculator at Free against iCalculator's $1.99. Customizable calculator also leads on in-app purchases (none vs 1) and update cadence (every 2 days vs every 9 days). iCalculator's advantage is ads (none vs shown). On device support and iOS requirement there is nothing between them.

Customizable calculator is free to download; iCalculator costs $1.99 up front. iCalculator sells 1 in-app purchase, starting at $0.49 per month. Customizable calculator asks for nothing beyond the download.

iCalculator ships an update every 9 days, Customizable calculator every 2 days. The most recent releases landed on November 2, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | iCalculator | Customizable calculator |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/icalculator-keyboard-calc/id1176527512/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 76.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 9 days | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 202 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nan Chao](https://appshunter.io/developer/965680403) | [Hisashi Yoshizawa](https://appshunter.io/developer/1770019728) |

## What reviewers say

### iCalculator

[App page](https://appshunter.io/ios/app/icalculator-keyboard-calc/id1176527512)

This app offers a powerful and intuitive calculator experience, featuring both basic and scientific functions. It calculates results instantly as you type and allows for easy editing and history management. Customize your experience with themes and integrate it seamlessly as a keyboard or Today Widget.

**Highlights:** Instant calculation without '=' button, Basic & Scientific Calculator, Fraction & Expression Calculator, History List with iCloud sync, Customizable themes, Keyboard extension for any app, Today Widget support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.49 | per month |


### Customizable calculator

[App page](https://appshunter.io/ios/app/customizable-calculator/id6740001661)

**In-app purchases:** none


## Frequently asked questions

### Is iCalculator free?

iCalculator costs $1.99, and also offers in-app purchases.

### Is Customizable calculator free?

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

### Do iCalculator or Customizable calculator have ads?

Customizable calculator shows ads; iCalculator does not.

### Which is updated more often, iCalculator or Customizable calculator?

iCalculator ships an update every 9 days, and Customizable calculator every 2 days. Most recently, iCalculator was updated on November 2, 2026 and Customizable calculator on October 25, 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.*