# C vs Dozecal

The clearest difference is in-app purchases: Dozecal at none against C's 1. Dozecal also leads on review sentiment (75% vs 64%) and device support (3 vs 1). C's advantage is update cadence (every 3 weeks vs every 10 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. C sells 1 one-off in-app purchase. Dozecal asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.0 for C against 4.0 for Dozecal. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews are what separate them: 64% of C's written reviews are positive against 75% of Dozecal's.

C ships an update every 3 weeks, Dozecal every 10 months. The most recent releases landed on October 13, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | C | Dozecal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/c-time-lite/id615668212/reviews) | [4.0 (4 ratings)](https://appshunter.io/ios/app/dozecal/id1521160089/reviews) |
| Number of ratings | 2 | **4** |
| Positive reviews | 63.6% of reviews | **75.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 10 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 3 MB | 27 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Siegware](https://appshunter.io/developer/443908611) | [Johan Kovacs](https://appshunter.io/developer/1486605020) |

## What reviewers say

### C

[App page](https://appshunter.io/ios/app/c-time-lite/id615668212)

Automatically track the time you spend at specific locations like work or school. The app uses geofencing to record your entries and exits, providing daily, monthly, and yearly summaries. You can also manually start/stop tracking and edit recorded times.

**Highlights:** Automatic time registration at places, Arrival/departure notifications, Manual start/stop tracking, Edit recorded times, Social media sharing

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| C-Time Pro Upgrade | $4.99 | one-time |


### 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 C free?

C is free to download, with in-app purchases available.

### Is Dozecal free?

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

### Which has better reviews, C or Dozecal?

C and Dozecal are both rated 4.0 out of 5 on the App Store, from 2 and 4 ratings respectively.

### Do C or Dozecal have ads?

Neither C nor Dozecal shows ads.

### Which is updated more often, C or Dozecal?

C ships an update every 3 weeks, and Dozecal every 10 months. Most recently, C was updated on October 13, 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.*