Archived App (Last seen on 16 May 2025)
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
About
Happy24 will randomly give 4 numbers, and the user will form a formula by adding, subtracting, multiplying and dividing to make the result equal to 24; using mental arithmetic to exercise the user's mental arithmetic ability and develop intelligence, you can try in fragmented time.
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What's New in Happy24
2.6
October 11, 2021
Solve problems when skipping questions.
