# Dual up down timer vs Dozecal

The clearest difference is rating: Dual up down timer at 4.8 against Dozecal's 4.2. Dual up down timer also leads on review sentiment (100% vs 75%) and update cadence (every 4 months vs every 10 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Dual up down timer holds the better App Store score, 4.8 against 4.2. Both are backed by a comparable volume of ratings — 4 and 5 respectively. Written reviews point the same way: 100% of Dual up down timer's written reviews are positive against 75% of Dozecal's.

Dual up down timer ships an update every 4 months, Dozecal every 10 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Dual up down timer | Dozecal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/dual-up-down-timer/id1294165793/reviews)** | [4.2 (5 ratings)](https://appshunter.io/ios/app/dozecal/id1521160089/reviews) |
| Number of ratings | 4 | **5** |
| Positive reviews | **100.0% of reviews** | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 10 months |
| Monetization | Free | Free |
| Size | 10 MB | 27 MB |
| Requires iOS | **11.2** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [RD Concepts](https://appshunter.io/developer/1293498470) | [Johan Kovacs](https://appshunter.io/developer/1486605020) |

## What reviewers say

### Dual up down timer

[App page](https://appshunter.io/ios/app/dual-up-down-timer/id1294165793)

This utility app provides a straightforward heat-up and cool-down timer. It features a simple interface and visual cues, with screen flashes indicating the end of each interval.

**Highlights:** Heat up and cool down timer, Simple user interface, Screen flash alerts, Interval timing

**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 Dual up down timer free?

Dual up down timer is free to download, with no in-app purchases.

### Is Dozecal free?

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

### Which has better reviews, Dual up down timer or Dozecal?

Dual up down timer is rated higher. Dual up down timer averages 4.8 out of 5 from 4 ratings, while Dozecal averages 4.2 from 5 ratings.

### Do Dual up down timer or Dozecal have ads?

Neither Dual up down timer nor Dozecal shows ads.

### Which is updated more often, Dual up down timer or Dozecal?

Dual up down timer ships an update every 4 months, and Dozecal every 10 months. Most recently, Dual up down timer was updated on November 3, 2026 and Dozecal on November 3, 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.*