Smartisan Notepad iOS version has been updated to version v4.0. The biggest highlight is the new AI writing function (paid for use). The update content is as follows: - New AI creation functions, including AI writing, continuation, expansion, abbreviation, outline, brainstorming and promotional copywriting - New AI tuning functions, including proofreading, typesetting and polishing - New AI summary functions, including refinement - Launched notepad membership service - Fixed several bugs In terms of membership price, there are four packages to choose from: Monthly subscription: 15 yuan Continuous monthly subscription: 9 yuan Quarterly subscription: 31.8 yuan Yearly subscription: 88.8 yuan Smartisan Notepad"…