The best alternatives to Word Flip are Word Tetris, TaleAStory, and Teeter. If these 3 options don't work for you, we've listed a few more alternatives below.
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Snowflake - BUILD— The Free Dev Conference for AI & Apps on Nov. 12-14
This is implementation of Tetris Game but using words. arrange letters and make english language words, once you have valid word, click on letter to score points. Game play video ==> https://youtu.be/qvoL5J-jsFA This is a PWA. Play and Have fun.