# iColorfulCalculator vs Octodecuple Calc

The clearest difference is update cadence: Octodecuple Calc at every 2 weeks against iColorfulCalculator's every 7 months. On price, ads, 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.

iColorfulCalculator ships an update every 7 months, Octodecuple Calc every 2 weeks. The most recent releases landed on October 17, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | iColorfulCalculator | Octodecuple Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/icolorfulcalculator/id945613076/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 7 months | **Every 2 weeks** |
| Monetization | Ad-supported | — |
| Size | 7 MB | 36 MB |
| Requires iOS | **15.0** | 15.8.3 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tsung-Liang Chen](https://appshunter.io/developer/888174947) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### iColorfulCalculator

[App page](https://appshunter.io/ios/app/icolorfulcalculator/id945613076)

This calculator app allows you to personalize its appearance with various color themes and button skins. It offers features like drop-down history, customizable button feedback, and automatic font resizing for a tailored user experience.

**Highlights:** Color themes, Button skins, Drop-down history, Vibrate/beep feedback, Adjustable font size

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

**In-app purchases:** none


### Octodecuple Calc

[App page](https://appshunter.io/ios/app/octodecuple-calc/id6742386286)

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

**In-app purchases:** none


## Frequently asked questions

### Is iColorfulCalculator free?

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

### Is Octodecuple Calc free?

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

### Do iColorfulCalculator or Octodecuple Calc have ads?

Both iColorfulCalculator and Octodecuple Calc show ads.

### Which is updated more often, iColorfulCalculator or Octodecuple Calc?

iColorfulCalculator ships an update every 7 months, and Octodecuple Calc every 2 weeks. Most recently, iColorfulCalculator was updated on October 17, 2026 and Octodecuple Calc on October 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*