Improved lock screen and background playback stability to reduce unexpected audio interruptions. Optimized membership recognition and purchase restoration for more reliable entitlement syncing. Added a copyable User ID to help support resolve membership issues faster. Merged sleep reports, weekly reports, and sleep coaching into Sleep Records for easier access. Updated lifetime early-bird pricing support and fixed several known issues.

Fixed an issue where sleep audio could unexpectedly stop during lock-screen playback and improved background playback stability. Improved VIP status syncing after purchase, restore, and code redemption. Sleep Records now brings sleep reports, weekly reports, and Sleep Coach together in one place, reducing duplicate entries in Settings.

Fixed an occasional playback pause issue. Optimised user experience flows. Added more detailed sleep data and related analytics.

KaiShui v2.2.0 — Your Personal Sleep Coach is Here New Features • Weekly Sleep Report — Automatic weekly summary of your sleep data with average scores, best and worst nights, and a 7-day trend chart to help you stay on track • AI Sleep Coach — Intelligent analysis of your sleep history to detect irregular bedtimes, social jet lag, and sleep debt, with personalized improvement suggestions to help you sleep better • Achievement Celebrations — Full-screen firework animation when you unlock achievements, real unlock dates displayed on the achievements page, and a "NEW" badge for recently unlocked achievements • Mix Sharing — One-tap sharing of your custom sound mixes as beautifully designed image cards to share with friends Improvements • Fixed morning report notification being cancelled when setting a sleep reminder • Fixed app icon not displaying on the About page • Fixed App Store rating link not working in some regions • iOS widget now supports live data updates (streak count, last night's sleep score) • All 8 languages fully translated

What's New in 2.1.0 Added a Redeem Code option on the About page for App Store subscription offer codes Improved the About page layout with a clearer app icon display Improved the Rate Us flow to open the App Store review page directly

KaiShui 2.0 — Major Update Sleep Report New sleep quality scoring system that automatically generates A/B/C/D/F grades each night. Integrates HealthKit sleep stage data with personalized improvement tips, delivered via morning notifications. Achievements 15 achievement badges across four categories: streaks, listening time, milestones, and special. Share beautifully designed achievement cards to social media and track your sleep journey. Smart Recommendations Personalized nightly playlist recommendations based on your listening history. Analyzes usage frequency, time of day, and recent sleep results to find your perfect playlist. Usage Statistics Redesigned stats page with modern card layout: streak tracking, cumulative data, peak usage time, GitHub-style activity heatmap, and weekly/monthly summaries at a glance. New Widgets Three new iOS widget styles: Minimal, Greeting, and Daily Quote — available for both home screen and lock screen. Localization Comprehensive localization improvements across 9 languages, including app name, permission descriptions, and audio file names with instant language switching. Other Improvements Gaussian blur background on About page Dynamic Island Live Activity toggle now defaults to off Various UI refinements

1、Optimized the app name structure with full support for Dynamic Island and Live Activities. 2、Enhanced the HealthKit sleep analysis algorithm. 3、Added full English language localization.