# DozAlarm

> DozAlarm (iPhone/iPad app by Paul Rapoport.)

- Source: https://appshunter.io/ios/app/dozalarm/id6762026397 (this page in markdown: same URL + `.md`)
- Developer: [Paul Rapoport](https://appshunter.io/developer/1892500767)
- Category: Utilities, Education
- Price: Free
- Age rating: 4+
- Requires: iOS 18.0 · 3 MB
- Languages: American English
- Released: 2026-08-05
- Data updated: 2026-09-07
- User reviews in markdown: https://appshunter.io/ios/app/dozalarm/id6762026397/reviews.md

## What is DozAlarm?

The Dozenal Suite is a set of six apps of dozenal utilities. They run on Apple’s mobiles (with iOS 18 or higher).

On any timing device, the day is divided by successive powers of 12, providing metric time reckoning based on twelves rather than tens. The leftmost digit changes every 2 hours (1/12 day), the next digit every 10 minutes, the next every 50 seconds. If displayed, the fourth digit changes every 4 1/6 seconds and the fifth digit every 25/72 second. That's much simpler and easier than the current time reckoning, which uses a mixture of bases 10, 12, 2, and 60.

In the dozenal number base, because the number 10 is one dozen, numerals ten and eleven must be single digits. They are represented by the symbols invented long ago by Isaac Pitman: rotated 2 for ten, and rotated 3 for eleven. Those are used by the two major dozenal societies, the Dozenal Society of America and the Dozenal Society of Great Britain. In plain text with dozenal numbers, ten is designated by the letter A, and eleven by the letter B.

The app will set up to six alarm times and six snooze times. When the alarm fires, the chosen music or chime plays for about 7 trices (about 29[d] seconds). On the home screen, the set alarm time is displayed as three dozenal digits of diurnal time or in the traditional time format, HH:mm.


## Version history (last 5 releases)

### 1.7 (1) — 2026-09-03

Change of one default value

### 1.6 (1) — 2026-09-02

Minor fix to the persistence of alarm settings

### 1.5 (1) — 2026-08-28

Minor bug fix in the snooze display

### 1.3 (1) — 2026-08-20

Minor fix, adding back the link to the guide to the app

### 1.2 (4) — 2026-08-05

No release notes.

## More apps by Paul Rapoport

- [DozClock](https://appshunter.io/ios/app/dozclock/id6762022445)
- [DozWeather](https://appshunter.io/ios/app/dozweather/id6762027706)
- [DozStopwatch](https://appshunter.io/ios/app/dozstopwatch/id6762029322)
- [DozTimer](https://appshunter.io/ios/app/doztimer/id6762030620)
- [DozWeatherPlus](https://appshunter.io/ios/app/dozweatherplus/id6764728955)

All apps by Paul Rapoport: https://appshunter.io/developer/1892500767

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-07.*