Daily Brain Workout

Four easy puzzles a day, taken at your own pace, and a "Well done" stamp when you finish them.

Each day has a set course: three of memory cards, number grid, word guess and sequence memory, plus a closing puzzle (sudoku or minesweeper). Finish it and today's stamp is yours. Everyone gets the same course and boards on the same day, and finished puzzles are saved if you leave midway.

• No scores, rankings or time limits
• 6 puzzle types with board sizes, speeds and forgiveness set to be comfortable
• Stamp calendar, streak counter and milestone stamps at 3, 7, 30, 100 and 365 days
• Practice any puzzle on its own, separate from the stamp course
• The word puzzle uses Korean words, so the app is available in Korean only

No sign-up needed. The app contains ads (banner, interstitial and rewarded); sudoku hints are free a few times, then available by watching an ad.