CaffeineClear : LastCup

LastCup is a fully offline caffeine tracker built around one simple question: can you still have another drink right now?

Instead of focusing on complicated charts first, the app helps you make a faster decision. If you drink now, how likely is it to affect tonight's sleep? If you still want a drink, how late can you safely go? If you already had caffeine, how much is still left in your system and when will it likely clear?

Version 2.0 makes this experience more direct. The home screen brings the decision card and quick logging closer to the top. A dedicated Log tab helps you record common drinks faster. History makes daily intake easier to review, and Settings centralizes reminders, feedback, and rating entry points. The overall flow is clearer and more comfortable for repeated daily use.

Key features include:
Quick logging for coffee, milk tea, energy drinks, and other common caffeine drinks
Home screen guidance for current caffeine level, estimated clearance time, and last-cup decisions
"What if I drink now?" simulation before you log a drink
Repeat-last-drink shortcuts to reduce repeated input
History review for a clearer look at your daily intake habits

LastCup stays fully local. No login, no internet required, no data collection, no cloud sync, no ads, and no subscription. It is a lightweight daily tool designed to help you make calmer and more confident caffeine decisions.

Feature requests and improvement ideas are welcome. All feedback is reviewed regularly and helps guide future updates:
Email: 842797413@qq.com
Or leave your thoughts in an App Store review