# Roulette Dozens Calculator

> Roulette dozens and columns tracker with betting suggestions. (iPhone/iPad app by Gerard Grundy.)

- Source: https://appshunter.io/ios/app/roulette-dozens-calculator/id714855554 (this page in markdown: same URL + `.md`)
- Developer: [Gerard Grundy](https://appshunter.io/developer/714855075)
- Category: Utilities, Entertainment
- Price: $4.99
- Rating: 3.50/5 from 2 App Store ratings · 3 written reviews indexed
- Age rating: 17+
- Requires: iOS 8.0 · 8 MB
- Languages: American English, Danish, Dutch, Finnish, French (France), German (Germany), Greek, Indonesian, Italian, Japanese and 12 more
- Released: 2013-10-01
- Data updated: 2026-06-25
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/roulette-dozens-calculator/id714855554/reviews.md

## What is Roulette Dozens Calculator?

Track the dozens and columns with just a tap!

To run the system all you need is a bankroll of $200. Though there are a lot of online casinos that will match your deposit amount.  So you can just deposit $100 and they will give you $100 for free!  

The Roulette Dozens Calculator tracks the numbers that are hit on each spin and logs how many times a dozen has not appeared. If a dozen has not appeared after five spins, chips will be displayed on the screen and you’ll be informed how much money to place on the next dozen. It’s a really easy system to use, has great winning odds and is a really fun way to play roulette!

Disclaimer: By buying this app you agree the developer is not responsible for any circumstances or any losses incurred.

Tested and works on IOS 8.0 and up
Click on app support to see how it works with the new undo and restart button. :)

Check out my other app Roulette Calc 41 Spins if you'd like to track how many times a number has been missed.  Here's the demo: http://www.youtube.com/watch?v=w0ArwEFJzoE

## Key features

- Tracks dozens and columns
- Logs unappeared dozens
- Suggests bet amounts
- Easy-to-use system
- Works on iOS 8.0+
- Undo and restart button

## Chart rankings

- #180 in Top Paid · Utilities (US App Store)

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/roulette-dozens-calculator/id714855554/reviews.md

### 5/5 — Fantastic

*2021-08-08, version 2.3.1*

This app is exactly what I was looking for. Matches my playing strategy. 👍

### 5/5 — It just needs American Roulette as an option.

*2020-08-06*

Cool app

### 5/5 — Good system made easier

*2015-08-11, version 2.1*

Was playing roulette using my memory & spreadsheets to employ similar betting system; wished something like this existed. It does, & it makes betting a whole lot easier....& profitable. Just go steady, little bets, stick to the system.

## Frequently asked questions about Roulette Dozens Calculator

### What is Roulette Dozens Calculator?

Roulette Dozens Calculator is a utility app designed to help roulette players track the dozens and columns that appear during a game. It logs how many times a dozen has not appeared and suggests betting amounts to potentially improve winning odds.

### How much does Roulette Dozens Calculator cost?

Roulette Dozens Calculator is a paid app priced at $4.99. This one-time purchase grants you access to its features for tracking roulette spins and betting strategies.

### Does Roulette Dozens Calculator have ads?

No, Roulette Dozens Calculator does not contain advertisements. As a paid application, it offers an ad-free experience for users focused on tracking their roulette games.

### What devices is Roulette Dozens Calculator compatible with?

Roulette Dozens Calculator is tested and works on iOS 8.0 and up. It is supported on iPhone and iPod devices.

### How often is Roulette Dozens Calculator updated?

The latest version of Roulette Dozens Calculator is 2.3.1, last updated on March 20, 2017. While it has not been updated recently, the app is functional on supported iOS versions.

### What is the age rating for Roulette Dozens Calculator?

Roulette Dozens Calculator has an age rating of 17+. This is likely due to its association with casino games and gambling-related activities.

### What do users think of Roulette Dozens Calculator?

Based on the available data, Roulette Dozens Calculator has a rating of 3.5 stars from 2 ratings. This suggests a mixed reception from its user base.

### Can Roulette Dozens Calculator be used offline?

The description does not explicitly state offline functionality, but as a tracking utility for a casino game, it is likely designed to be used without an active internet connection once installed.

## Version history (last 5 releases)

### 2.3.1 — 2017-03-20

This app has been updated by Apple to display the Apple Watch app icon.

Added Languages - French, Chinese (Simplified), Danish, Dutch, German

### 2.3 — 2017-03-15

Added Languages - French, Chinese (Simplified), Danish, Dutch, German

### 2.2 — 2016-12-14

Checked compatibility with IOS 8 and up.

### 2.1 — 2014-01-11

Updates:
- Changed Rows to Columns
- Added Tutorial screens when first launched and they are also accessed from the setting menu
- typo corrected in warning

### 2.0 — 2013-12-31

Massive Update!!!
-swipe to right to change settings
-ability to change the amount of spins you miss before betting
-Now tracks rows missed
-Displays the last 6 numbers played
-Restart button has an alert to check you meant to restart the system
-Bigger display so number are easier to press.
-Spin Counter to count how many spins played

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## More apps by Gerard Grundy

- [Metronome Step](https://appshunter.io/ios/app/metronome-step/id789603886)
- [Minute Chords](https://appshunter.io/ios/app/minute-chords/id847867010)
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- [Guitar Note Blast](https://appshunter.io/ios/app/guitar-note-blast/id949445911)
- [Note Blast Lite](https://appshunter.io/ios/app/note-blast-lite/id954161497)

All apps by Gerard Grundy: https://appshunter.io/developer/714855075

## Related topics

[dozenal calc](https://appshunter.io/ios/topics/dozenal-calc)

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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 2026-06-25.*