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Caffeine Timing

Better timing for better sleep
Jungkil Shim · Health & Fitness
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App info

Developer
Jungkil Shim
Category
Health & Fitness
Released
Oct 2, 2026
Version
1.2.0 (Oct 7, 2026)
Price
Free
Size
40.2 MB
Requires
iOS 16.4
Age rating
16+
Languages
English, Japanese, Korean

In-app purchases

none
Current prices, App Store US.

About Caffeine Timing

Caffeine Timing helps you decide whether now is a good time for another caffeinated drink. Get clear guidance such as "One more is okay," "Go smaller," "Choose decaf," or "That is enough for today." The app considers your bedtime, caffeine sensitivity, today's drink history, and selected serving size to offer an easy-to-understand suggestion. Key features - Log coffee, mix coffee, decaf, tea, energy drinks, cola, and more - Choose familiar serving sizes in milliliters, including Small, Tall, Grande, and Venti - Get guidance based on the current time and your expected bedtime - Review caffeine patterns across 7, 30, and 90 days - Optionally use recent sleep, steps, and active energy from Apple Health - Optionally save logged caffeine intake to Apple Health - Check today's caffeine total from the Home Screen widget - Undo an incorrectly logged caffeine entry - Use the app in Korean,…
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