d20 Calculator

Name: d20 Calculator
Rating: 5 (5 reviews)
Author: Lion's Den

By: Lion's Den

Productivity

Features & Capabilities

d20 Calculator is a versatile dice calculator for tabletop RPGs. Enter expressions like 3d6+2d8 or (3d100 + 5d7) x 3d2 to get instant results, so you never have to tally dice by hand.

Key features include saving frequently used rolls with labels, a dx button to roll any die you need, arithmetic operations on dice, a dice roll sound effect to let everyone know when a roll lands, and six stylish themes to tailor the look and feel.

User Growth & Download Statistics

App Games Education Developer Tools

By:

Lion's Den

Rating:

5.00

(5)

Version:

2.12 Last updated: 2020-02-21

Version code:

834808340

Creation date:

2014-02-17

Compatible devices:

Size:

12.30MB

URLs:

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-06

Compare stats and ranking:

Ranking

# 508,322 ▼ 3,720

For Developers

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Contact the developer

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Developed by:

Lion's Den

Apple Apps Store

https://apps.apple.com/mx/app/d20-calculator/id817035968?l=en-GB

User Reviews

Users praise d20 Calculator for its intuitive UI, speed, and ability to handle complex dice formulas with saved presets. The most common drawbacks are crashes during save/purchase/restore actions and iPad-specific instability. Some reviewers also wish for roll history/run totals features. Overall, it’s seen as a strong, versatile dice calculator for gaming despite stability and feature-history concerns.

Pros

Intuitive, calculator-style UI that makes entering dice formulas easy.
Fast results with visibility of individual dice results for transparency.
Powerful and flexible: supports complex dice formulas and large dice pools.
Saves and names presets/rolls for quick reuse.

Cons

Frequent crashes during key actions such as saving rolls, purchasing upgrades, and restoring purchases.
iPad-specific instability and UI constraints (full-screen requirement, landscape mode, and occasional iPad crashes).
Users request roll history/tape and running totals features that are not consistently available across reviews.