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Sleep As Android has these puzzles too with varying difficulties, as well as few more "engaging" "CAPTCHA's" such as tapping sleeping sheep (with awake sheep on
by SlashmanX 12y ago
Sleep As Android has these puzzles too with varying difficulties, as well as few more "engaging" "CAPTCHA's" such as tapping sleeping sheep (with awake sheep on the screen), scanning a QR/NFC and writing a log into a dream diary. It also "tracks" your sleep and wakes you up an the optimal time. Can't recommend it enough