Arrow Puzzle

Find a clear path and tap the arrows away, one by one

Look in the direction each arrow points and tap one with a clear path out. Curved arrows unwind as they leave, opening the way for the next move. Remove every arrow to clear the board.

Explore puzzles shaped like flowers, fish and stars. Use hints, zoom and a press-and-hold direction guide to find your next move.

Languages: Japanese, English, Korean, Traditional Chinese and French, plus German, Spanish and Portuguese (Brazil)

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Balls by Color

Sort each color into its own tube, at your own pace

Move balls between tubes until each color is together. Simple tap controls make it easy to start, while each puzzle invites you to think a few moves ahead.

Take your time with no timer, unlimited undo, and as many restarts as you need. Play offline and enjoy a quiet puzzle break whenever you like.

Languages: Japanese, English, Korean, Traditional Chinese and French, plus German, Spanish and Portuguese (Brazil)

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Crown Queens

A colorful logic puzzle with one unique solution and explanatory hints

Every puzzle has one unique solution. Place exactly one crown in each row, each column, and each color region. Crowns cannot touch, even diagonally.

Play a new daily puzzle or work through Standard and Advanced puzzle lines. Explanatory hints show the next safe deduction and why it works, with no timer or pressure.

Languages: Japanese, English, Korean, Traditional Chinese and French, plus German, Spanish and Portuguese (Brazil)

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Sorakiroku

A web service for creating printable night sky poster images

Sorakiroku calculates stars, the Moon, and planets from a date, location, and time zone, then turns that moment into a printable night sky poster image. You can save PDF, PNG, and JPEG files from your browser.

The service publishes information about astronomical data, licenses, and how location data is handled. You can create a preview without creating an account.

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Number Place

Over 3,000 puzzles for free! Train your brain easily with sudoku puzzle games!

Play Over 3,000 Puzzles for Free!
Enjoy easy brain training with the world-famous puzzle game Number Place (Sudoku)! Sudoku is highly effective for training the brain, improving memory, and preventing dementia.

Rules:
Fill in the blank grid spaces with the numbers 1 – 9 so that the same numbers do not overlap within a single row or column or in the 3x3 blocks outlined with a thick border.

Functions and Features:
・Choose from three difficulty levels: Easy, Medium, and Hard.
・Games in progress are saved automatically so that you can resume a game from where you left off.
・Use the Memo function to place a number in the grid temporarily.
・Additional functions, such as the undo function and function for highlighting identical numbers, help to make for a high-quality Sudoku experience.

Recommended if:
・You like puzzle games
・You want to improve your concentration and memory
・You want to train your brain in a simple way
・You are getting older and you feel that you can't think quite as fast as they used to
・You are looking for a game to kill time on your commute to work or school
This game can be readily enjoyed by all kinds of people from children to adults!

A puzzle game perfect for those spare moments throughout the day. Play for free and train your brain today

Languages: Japanese, English, Korean, Traditional Chinese and French

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Number Flow

Connect identical numbers with lines and fill the cells.

Get smarter just by playing?! This popular pencil puzzle game is simple but addictive.
The rules are simple! Just connect identical numbers with lines and fill the cells.
On your commute to work or school or just to kill time, get in some easy brain training on your smart phone!

Rules:
・Connect identical numbers with lines.
・Lines cannot cross each other or branch off.
・Connect all the numbers and fill all the cells with lines to win.
・Tap on a number cell to erase the line.

Functions / Features:
・Over 1,800 puzzles.
・Choose the right puzzles for you out of 6 difficulty levels.
・Enjoy a high quality game setup complete with undo and delete functions.
・Draw lines with a smooth touch.

Recommended if:
・You like puzzle games
・You want to improve your concentration and memory
・You want to train your brain in a simple way
・You are getting older and you feel that you can't think quite as fast as they used to
・You are looking for a game to kill time on your commute to work or school
This game can be readily enjoyed by all kinds of people from children to adults!

The NumberLink game is easy fun for people of all ages. Play it during your spare time to train your brain.

Languages: Japanese, English, Korean, Traditional Chinese and French

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Workout Timer

The Timer is designed for HIIT, Tabata, Circuit Training

This timer is designed for high-intensity interval training, such as HIIT, Tabata workout and circuit training.

You can set your own workout times, rest times, and rest times between cycles. So you can train at your favorite intervals.

The remaining time is shown at a glance, and the number of sets can be easily checked.

The setup is simple and you can easily change the time and the round you want to work out.
You can also change the sound and vibration settings.

It can be used for training at the gym, stretching and yoga at home, boxing, cardio, studying, meditation, and much more!

The sound source was borrowed from Otologic (CC BY 4.0).

Languages: Japanese, English, Korean, Traditional Chinese and French

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Reading List

Save the site you want to read later!

Have you ever felt like you don't have enough time to read an interesting web page you found?
"Reading List" app will help you out!
You can access your saved web pages anytime, anywhere and on any device!

Howto:
・You can add the site to the list by pressing the (+) button or by selecting the "Reading List" app from other app's Share Extension.
・You can access from other devices by signing up.
・You can delete sites that you have read by long pressing.

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