OtterDay: Calendar Logic Game

1.2.1

Ascending Otters

0.00

0 reviews

100+
Downloads

Free

Train calendar logic and learn to name weekdays in seconds.

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iOS version

About OtterDay: Calendar Logic Game

OtterDay: Calendar Logic Game is an educational app developed by Ascending Otters.

Download Statistics

OtterDay: Calendar Logic Game has been downloaded 110 times. In the last 30 days, the app was downloaded 7 times.

User Ratings

The app has no ratings yet.

App Information

OtterDay: Calendar Logic Game is FREE to download. The APK download size is 102.99 MB. The latest version available is 1.2.1. The last update was on July 17, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play August 2025.

Description

Can you name the weekday of any date?

OtterDay turns calendar calculation into a fast, satisfying logic game. Learn a reliable mental method step by step, then practice until you can find the right weekday in seconds, without checking a calendar.

Every round challenges logic, memory, number sense, and mental math. Futuristic otter guides teach the method one piece at a time. Start with recent dates, unlock wider ranges across centuries, and train for speed and precision.

Why you'll keep playing:
• Guided lessons for the calendar method
• Written and spoken-date challenges
• Speed and precision training
• Personal statistics and progress tracking
• Achievements for accuracy, endurance, and fast answers
• Flexible difficulty for quick practice or serious mastery

Made for curious minds who enjoy Sudoku, logic puzzles, mental math, number games, brain training, and clever systems. The method is related to John Conway's Doomsday Algorithm, presented as a focused puzzle adventure instead of a dry lesson.

Recent changes:
This version includes several bug fixes.

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More data about OtterDay: Calendar Logic Game

Price	Free to download
Total downloads	110
Recent downloads	7
Rating	No ratings
Ranking	Not ranked
Version	1.2.1
APK size	103.0 MB
Number of libraries	?
Suitable for	Everyone
Ads	Contains ads

App Performance Report

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OtterDay: Calendar Logic Game compared with similar apps

Common keywords of similar apps

Calendar Method Otterday Seconds Weekday Date Step Recent Precision Logic Mental Game Train Learn Fast Practice Challenges Number Math Speed Training

Keywords missing from this app

Brain Games Fun Puzzles Skills Arithmetic Improve Thinking Multiplication Puzzle Solving App Learning Time Tables Quick Exercises Solve Logical Kids Problem Mind Free Times Memory Adults Designed Calculation Interactive Numbers Exciting Engaging Enjoy Riddles Play Challenging Test Master

Downloads over time

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OtterDay: Calendar Logic Game has been downloaded 110 times. Over the past 30 days, it has been downloaded 7 times.

Changelog of OtterDay: Calendar Logic Game

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Developer information for Ascending Otters

Ascending Otters

felix.digitallabs@proton.me

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Comments on OtterDay: Calendar Logic Game for Android

★★★★★ Madhu · Aug 12, 2025

I was a beta tester, and this app is polished and fun. The challenges are engaging, and I'm already a date master! 🤓

★★★★★ Konstantin Freiberg · Aug 27, 2025

Cool app to impress your friends with 😍

Google Play Rankings for OtterDay: Calendar Logic Game

This app is not ranked

Technologies used by OtterDay: Calendar Logic Game

16 permissions

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