Unbuzz vs Caffeine Tracker

Before your next coffee, check if it still fits your bedtime. Unbuzz is a caffeine tracker for coffee, tea, energy drinks and more, on iPhone and Apple Watch. Log what you drink, and before the next one, ask "Can I have another?": Unbuzz estimates how that drink would add up by your bedtime and answers right away. CAN I HAVE ANOTHER? Pick a drink and see whether it still fits your bedtime estimate, before you log anything. Your last drink is filled in, so the answer takes one tap. Compare half a serving, an hour earlier or decaf; nothing is logged while you compare. When the answer is no, see how much still fits and compare a lighter drink you often have. FIND YOUR DRINK FAST Search a catalogue of branded coffee shop drinks, energy drinks, sodas and teas, with each size listed separately. Your recent drinks come first, even when you search. Scan a barcode or create your own drink when you need to. A FREE WIDGET Add the free "Can I have another?" widget to your Home Screen or Lock Screen and see the answer at a glance. ON YOUR APPLE WATCH The Apple Watch app and complications show your current estimate. With Pro, log drinks from your wrist. KNOW WHEN TO STOP Follow an estimate of your caffeine level through the day, with your bedtime level and today's drinks, so you can see when your last coffee of the day should be. With Pro, get a reminder before your last call. CUT BACK GRADUALLY With Pro, follow a plan toward one of two goals: a smaller daily total or an earlier last call. LEARN IT IN A MINUTE Short how-to videos show each part of the app, with captions in your language. FREE AND PRO Free: logging, drink search, barcode scan, custom drinks, the "Can I have another?" check and its widget, the Apple Watch app and complications, Apple Health, and the last 14 days of history. Unbuzz Pro (subscription or one-time purchase) adds full history and trends, more widgets including quick log, logging from Apple Watch, last-call reminders and the plan to cut back. PRIVATE BY DESIGN The calculations run on your device. No account is needed. Apple Health is optional. Analytics are optional and off until you agree. Caffeine levels and timing are estimates. Individual responses vary. Unbuzz does not measure caffeine in your body, predict when you will fall asleep, or provide medical advice.

Doppio is a native caffeine tracker that estimates how much caffeine is still in your system right now — and how it fades over the hours ahead. Log drinks in a tap, watch your levels decay on a personalized metabolism curve, and finally answer the question that matters: which cup can you still have before bed? TRACK EVERY CUP • 27 built-in drinks plus custom entries • Adjust serving size from 10–100% • Real-time caffeine level based on your personal half-life • History for today, the last few days, this week, or the last month KNOW YOUR METABOLISM • A quick onboarding questionnaire estimates your caffeine sensitivity • Your personalized half-life powers every chart, widget, and forecast BUILD BETTER HABITS • Home suggests what you can still drink before bed, and how many servings fit — plus how the forecast is worked out • Daily limit with notifications • Under-limit streaks with milestone celebrations • 7-night sleep experiments: test one caffeine rule against your last 14 nights • A morning suggestion that adapts to how you actually slept • Rate how you slept each night, and see efficiency, awakenings, and sleep stages when Health has the data BREW LIKE A PRO • Caffeine and ratio calculator for 11 methods, from French press to Turkish coffee and a La Pavoni lever • Brew timer with a Lock Screen and Dynamic Island Live Activity • Start your favorite saved brew with Siri or a Shortcut AT A GLANCE • Home Screen and Lock Screen caffeine widgets, also built for StandBy • One-tap logging from the widget and Control Center, or open straight to the drink picker • Log, check, and undo with Siri — or find your drinks and brews in Spotlight ACROSS YOUR DEVICES • iCloud keeps your caffeine log, coffee shelf, and saved brews in sync APPLE HEALTH • Two-way caffeine sync — write what you log, or import caffeine already in Health, your Apple Watch, or another app • Sleep read and headache-symptom logging • Every sync is opt-in and controlled by you ACCESSIBLE TO EVERYONE • VoiceOver throughout, with charts you can listen to and brew timers that speak • A simplified Assistive Access version of Doppio for people who want fewer choices DOPPIO PRO Everything above is free. Doppio Pro adds: • Caffeine Insights — your personal last-coffee time, a Last Call reminder before it, your full stats, and a day-by-day breakdown of everything you've logged • Full History — every day you've ever logged, beyond the last month • Caffeine & Sleep Insights — see how your sleep score changes on high- and low-caffeine nights. Your first finding is free. • Sleep Experiments — your first is free; run more to test which habits help • Detox Planner — guided 7–30 day plans to cut back, with symptom tracking. Preview your plan for free. • Saved Brews — your first recipe is free; save more and start any in one tap, from the app, a widget, or Siri • Coffee Shelf — keep your beans, roasters, and ratings in one place — with photos and storage tracking • Five extra app themes • Larger Home Screen widgets with your metabolism curve and detox progress Doppio Pro is available as a yearly subscription or a one-time lifetime purchase. Installed Doppio before version 3.0.0? Full history and your last-coffee time stay free for you. Available in English, German, Spanish, French, Italian, Dutch, Portuguese (Portugal and Brazil), Japanese, Korean, Turkish, and Serbian. Caffeine figures in Doppio are estimates. They come from a standard half-life model adjusted by the answers you give during setup — not from measuring your body. Doppio is not a medical device and does not provide medical advice; talk to a clinician about specific health concerns. Your data stays on your device and in your private iCloud unless you enable Apple Health sync. Doppio uses anonymous usage analytics, which never include your caffeine logs, health samples, or notes. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/