What is BlastSim?

BlastSim is a free app for calculation of area affected by nuclear explosion based on formulae researched by Nuclear Explosion Archive. The software is intended for users who wish to know more about devastating effect of Nuclear explosion and maybe useful for evacuation planning. This app makes it easy to calculate affected area for just a few taps.

This app can be use to experiment with range of thermal radiation, radius of radio active fallout and possible number of casualties. It includes list of popular weapons in human history, such as Little boy, Fat man and Tsar Bomba.

It is also possible to input custom yield of the weapon (in kilotons)

List of formulae/reference papers used are on our website. Which can be access from the menu section in the app.

What’s New

Version 1.1

Localization: Russian, German, Chinese, Spanish, French, Portuguese, Italian, Korean, Japanese

Ratings and Reviews

5.0 out of 5
9 Ratings
9 Ratings
WCKD Pedro ,


I’ve been looking for an app like this for days! thank you so much for making one. i have a lil suggestions to make the app a lil better. if maybe you can add like 3D nuclear blast! Add like destruction after it blasts and weather changes! that’ll be so cool but the app is the best i love it so much :) definitely an app i’m going to keep👍🏽


Apikrit Panichevaluk
8.2 MB
Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, French, German, Italian, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Traditional Chinese
Age Rating
Rated 4+
© 2018 myice92


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer

You May Also Like