# Roll one/two Die/Dice — The statistics of rolling dice

> Statistical exploration of dice rolling probabilities and outcomes. (iPhone/iPad app by Frank Wolfs.)

- Source: https://appshunter.io/ios/app/roll-onetwo-diedice/id6443637558 (this page in markdown: same URL + `.md`)
- Developer: [Frank Wolfs](https://appshunter.io/developer/1125755408)
- Category: Education
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 16.0 · 10 MB
- Languages: English
- Released: 2022-10-02
- Data updated: 2026-06-12
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/roll-onetwo-diedice/id6443637558/reviews.md

## What is Roll one/two Die/Dice?

This App was developed to explore the statistics of rolling one die or two dice.  When the number of rolls is low, it appears that not all numbers occur at the same rate.  But remember, this is a statistical process.  As you roll the die more times, the relative difference between the different numbers decrease, and the probabiliy of seeing a particular number approaches 1/6.  When you roll two dice, the sum of the numbers of die 1 and die 2, which varies between 2 and 12, is not evenly distributed.  In this case, the distribution is dominated by the number of ways in which you can roll a specific sum.  What is the most likely sum you expect to see?  Try it out to see if you are correct.  This App was inspired by an App developed by S. Yamacli in Beginner's Guide to iOS 14.

## Key features

- Simulate rolling one die
- Simulate rolling two dice
- Analyze outcome probabilities
- Observe statistical convergence
- Explore sum distributions for two dice


## Frequently asked questions about Roll one/two Die/Dice

### What is the most likely sum when rolling two dice in Roll one/two Die/Dice?

The most likely sum when rolling two dice is 7. This is because there are more combinations of individual die rolls that add up to 7 than any other sum.

### Does Roll one/two Die/Dice have ads?

No, Roll one/two Die/Dice does not contain advertisements. It is a completely ad-free experience for users.

### How does Roll one/two Die/Dice show statistical convergence?

As you increase the number of rolls in Roll one/two Die/Dice, the observed frequency of each number on a single die will get closer to the theoretical probability of 1/6.

### What devices does Roll one/two Die/Dice support?

Roll one/two Die/Dice is available for iPhone and iPad devices, offering a consistent experience across Apple's mobile platforms.

### What is the age rating for Roll one/two Die/Dice?

Roll one/two Die/Dice has an age rating of 4+, making it suitable for young learners and general audiences interested in basic probability concepts.

### How often is Roll one/two Die/Dice updated?

The app was last updated on October 10, 2022, with version 2.5. While specific update frequency isn't detailed, this indicates recent maintenance and potential for future improvements.

### Can I use Roll one/two Die/Dice offline?

Yes, Roll one/two Die/Dice functions as a simulation tool and does not require an internet connection to operate, allowing for offline use.

## Version history (last 5 releases)

### 2.5 — 2022-10-10

Updated text and added theoretical predictions to the graphs showing the number of counts for each rolled number.

### 2.1 — 2022-10-10

Added information about the theoretical probability distribution for both the one die rolls and the two dice rolls

### 2.0 — 2022-10-07

Added the option to look at the probabilities of each number rolled (in addition to the number of times a number was rolled that was previously already available in the app).

### 1.7 — 2022-10-06

Adjusted the font sizes to ensure that the x-axis label of the graph is visible on the smallest screens.

### 1.6 — 2022-10-03

Added a reset button to each page.

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## More apps by Frank Wolfs

- [My3BioRhythms](https://appshunter.io/ios/app/my3biorhythms/id1125755409)

All apps by Frank Wolfs: https://appshunter.io/developer/1125755408

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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 2026-06-12.*