# Image Calculator vs Dozecal

The clearest difference is update cadence: Dozecal at every 10 months against Image Calculator's every 50 months. Dozecal also leads on iOS requirement (12.0 vs 17.0). 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.

Image Calculator ships an update every 50 months, Dozecal every 10 months. The most recent releases landed on October 19, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Image Calculator | Dozecal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (4 ratings)](https://appshunter.io/ios/app/dozecal/id1521160089/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 50 months | **Every 10 months** |
| Monetization | — | Free |
| Size | 372 MB | 27 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tomoki Hagano](https://appshunter.io/developer/1508301579) | [Johan Kovacs](https://appshunter.io/developer/1486605020) |

## What reviewers say

### Image Calculator

[App page](https://appshunter.io/ios/app/image-calculator/id1508377385)

**Features:** macOS Compatibility

**In-app purchases:** none


### Dozecal

[App page](https://appshunter.io/ios/app/dozecal/id1521160089)

This educational calculator promotes the use of Base Twelve (duodecimal) in math and science. It offers standard mathematical functions in both duodecimal and decimal modes, with automatic conversion between them. It utilizes Reverse Polish Notation (RPN) for calculations.

**Highlights:** Duodecimal and Decimal modes, Automatic mode conversion, RPN (Reverse Polish Notation) input, Standard math functions, Trigonometric operations (degrees), Educational tool for Base Twelve

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Image Calculator free?

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

### Is Dozecal free?

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

### Do Image Calculator or Dozecal have ads?

Neither Image Calculator nor Dozecal shows ads.

### Which is updated more often, Image Calculator or Dozecal?

Image Calculator ships an update every 50 months, and Dozecal every 10 months. Most recently, Image Calculator was updated on October 19, 2026 and Dozecal on October 2, 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.*