Doomsday Trainer

6.0.8

Inefficient Code

0.00

0 reviews

500+
Downloads

Free

Calculate the day of the week for any date in history. Train your brain!

iOS version

About Doomsday Trainer

Doomsday Trainer is an educational app developed by Inefficient Code.

Download Statistics

Doomsday Trainer has been downloaded 560 times. In the last 30 days, the app was downloaded 120 times.

User Ratings

The app has no ratings yet.

App Information

Doomsday Trainer is FREE to download. The APK download size is 13.31 MB. The latest version available is 6.0.8. The last update was on April 20, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play March 2026.

Description

Can you figure out that March 15, 1937 was a Monday — in under 5 seconds?

More data about Doomsday Trainer

Price	Free to download
Total downloads	560
Recent downloads	120
Rating	No ratings
Ranking	Not ranked
Version	6.0.8
APK size	13.3 MB
Number of libraries	?
Suitable for	Everyone
Ads	NO ads

App Performance Report

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Alternative downloads for the Doomsday Trainer app

Doomsday Trainer compared with similar apps

Common keywords of similar apps

Doomsday Speed Trainer Calculation Step Full Year Memory Global Training Wollin Drill Accuracy Week History Teaches Calendar Techniques Competitive Slow Skill Correct Fast Answer Longest Fastest Average Climb Rankings Mode World Shortcut Subtract Leaps Anchors Century Leap Charts Players Matches Streak Game Day Date Build Real Clock Track Progress

Keywords missing from this app

Daily Days Time Streaks Habit App Tracker Dice Habits Start Rewards Personal Recent Life Card Age Share Friends Designed Challenge Development Play Free Counter Features Cards Personality Countdown Gameplay Math Seconds Goals Log Stay Easily Improve Miss Rolls Coins Minutes Set

Downloads over time

Doomsday Trainer has been downloaded 560 times. Over the past 30 days, it has been downloaded 120 times.

Changelog of Doomsday Trainer

Show changelog

Developer information for Inefficient Code

Inefficient Code

inefficientcode@gmail.com

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Comments on Doomsday Trainer for Android

★★★★★ Alex Montes · Mar 30, 2026

Found on reddit the other day, a few days of light practice later, and I've got it down! 11 in a row is my best streak so far. Super cool math trick and very useful app to practice with. All the updates have been welcome 👍🏼

★★★★★ Thomas Wollin · Mar 27, 2026

Not only does this tool teach you a really cool party trick, it is also an exceptional tool for drilling down basic arithmetic with an intuitive flash card system. My nephew loves the times' table feature up to 20x20! A real hidden gem with a lot of value and a fun challenge.

Google Play Rankings for Doomsday Trainer

This app is not ranked

Technologies used by Doomsday Trainer

Doomsday Trainer is requesting 9 permissions and we don't have library information (yet).

Permissions

Network communication

view network connections, full network access, Google Play license check

System tools

prevent phone from sleeping

Extra

android.permission.ACCESS_ADSERVICES_AD_ID, android.permission.ACCESS_ADSERVICES_ATTRIBUTION, com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE, com.google.android.gms.permission.AD_ID, com.inefficientcode.doomsdaytrainer.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

We haven't collected library information for this app yet. You can use the AppBrain Ad Detector app to detect libraries in apps installed on your device.

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