Roll and Keep Helper 2.0

Free Trial
524.29 KB

Publisher Description

Die roller and probability calculator for role playing games using the roll & keep dice system.

Set a number of 10-sided dice to roll, and a subset of these to be kept. For each roll, the total is compared to a target number.

The Roll and Keep Helper can simulate die rolls and calculate the probability of hitting a target number. It also calculates the probability of successfully calling 1, 2 or 3 raises (hitting increased target numbers).

You can enter the number of dice to roll and keep, the target number, and an optional static bonus using either the + and - keys or you can use a numeric keypad by tapping the number you want to change. Use the tab controls at the bottom to switch between die rolling mode and probability mode. While in die rolling mode, you can shake the phone or press the button to roll the dice.

By default the 10-sided dice will explode on 10s (causing another die to be rolled and added to the total), but the Roll and Keep Helper can be also be set to explode on 9s and 10s, to have no explosions, and/or to reroll 1s once.

No ads or in-game purchases.

Estimating the chance of succeeding on roll & keep die rolls, and how many raises you can safely call, is tricky and I wrote this utility to help. Hope you enjoy it!

Requires iOSĀ 7.1 or later. Compatible with iPhone, iPad, and iPod touch.

Roll and Keep Helper is a free trial software application from the Action subcategory, part of the Games & Entertainment category. The app is currently available in English and it was last updated on 2014-10-05. The program can be installed on iOS.

Roll and Keep Helper (version 2.0) has a file size of 524.29 KB and is available for download from our website. Just click the green Download button above to start. Until now the program was downloaded 0 times. We already checked that the download link to be safe, however for your own protection we recommend that you scan the downloaded software with your antivirus.

Program Details


Publisher Jay Luo
Released Date 2014-10-05
Languages English


Category Games & Entertainment
Subcategory Action

System requirements

Operating systems ios

Download information

File size 524.29 KB
Total downloads 0


License model Free Trial
Price $0.99

Version History

Here you can find the changelog of Roll and Keep Helper since it was posted on our website on 2016-11-04. The latest version is 2.0 and it was updated on on 2017-06-29. See below the changes in each version:

version 2.0

posted on 2014-10-05

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Release Date: 2014-10-05
Publisher: Jay Luo
Operating System: ios
Type: Free Trial