# Dozecal vs Sun Focus

The clearest difference is price: Dozecal at Free against Sun Focus's $1.99. Dozecal also leads on iOS requirement (12.0 vs 17.0). Sun Focus's advantage is update cadence (every 4 weeks vs every 10 months) and review sentiment (100% vs 75%). On ads, in-app purchases and device support there is nothing between them.

Dozecal is free to download; Sun Focus costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Dozecal ships an update every 10 months, Sun Focus every 4 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Dozecal | Sun Focus |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/dozecal/id1521160089/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 4 weeks** |
| Monetization | **Free** | Paid |
| Size | 27 MB | 3 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Johan Kovacs](https://appshunter.io/developer/1486605020) | [Alventir Ltd](https://appshunter.io/developer/1527058758) |

## What reviewers say

### 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


### Sun Focus

[App page](https://appshunter.io/ios/app/sun-focus/id1527058756)

Visualize the sun's path, sunrise, and sunset times for any location and date. Utilize augmented reality and interactive maps to plan photography, assess sun exposure, or explore celestial phenomena.

**Highlights:** Augmented reality (AR) sun path visualization, Interactive plot and map, Sunrise and sunset time calculation, Save and bookmark locations, Customizable widgets, Location lookup by coordinates or name

**In-app purchases:** none


## Frequently asked questions

### Is Dozecal free?

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

### Is Sun Focus free?

Sun Focus costs $1.99, with no in-app purchases.

### Do Dozecal or Sun Focus have ads?

Neither Dozecal nor Sun Focus shows ads.

### Which is updated more often, Dozecal or Sun Focus?

Dozecal ships an update every 10 months, and Sun Focus every 4 weeks. Most recently, Dozecal was updated on October 24, 2026 and Sun Focus 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.*