# Caffeine Tracker - Doppio — See how coffee affects sleep > Personalized caffeine tracker and sleep impact analyzer. (iPhone/iPad app by MOBILE CODING FACTORY DOO.) - Source: https://appshunter.io/ios/app/caffeine-tracker-doppio/id6758040507 (this page in markdown: same URL + `.md`) - Developer: [MOBILE CODING FACTORY DOO](https://appshunter.io/developer/1590013609) - Category: Health & Fitness, Food & Drink - Price: Free with in-app purchases - Rating: 5.00/5 from 2 App Store ratings · 2 written reviews indexed - Age rating: 4+ - Requires: iOS 26.1 · 20 MB - Languages: American English, Dutch, French (France), German (Germany), Italian, Japanese, Korean, European Portuguese, European Spanish - Released: 2026-06-12 - Data updated: 2026-10-15 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/caffeine-tracker-doppio/id6758040507/reviews.md ## What is Caffeine Tracker? 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 with a tap, watch your levels decay on a personalized metabolism curve, and finally answer the question that matters: is that afternoon coffee going to keep you up tonight? Doppio is free for the core functions. Track your caffeine, see your metabolism curve, and brew better coffee without paying anything — ever. TRACK EVERY CUP • 21 built-in drinks plus custom entries • Adjust serving size from 10–100% • Edit, annotate, and delete past entries • Real-time caffeine level based on your personal half-life • Full history at any time range — today, this week, this month, or all time KNOW YOUR METABOLISM • A quick onboarding questionnaire estimates your caffeine sensitivity • Your personalized half-life powers every chart, widget, and forecast • Retake or reset the profile any time in Settings BUILD BETTER HABITS • Daily limit with notifications • Under-limit streaks with milestone celebrations • 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 10 brewing methods • 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 widget with your caffeine level, 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 • Uses your own private iCloud — there is no Doppio account to create 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 • Clear text in every theme, plus Reduce Motion and larger text sizes • A simplified Assistive Access version of Doppio for people who want fewer choices DOPPIO PRO Everything above is free, forever. Doppio Pro adds: • Caffeine Insights — your full stats, a bedtime forecast with a "last coffee by" time, and a day-by-day breakdown of everything you've logged • Caffeine & Sleep Insights — see how your sleep score changes on high- and low-caffeine nights • Detox Planner — guided 7–30 day plans to cut back, with symptom tracking • Saved Brews — dial in a recipe once and start it in a single 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. No ads, ever. Available in English, German, Spanish, French, Italian, Dutch, Portuguese (Portugal and Brazil), Japanese, and Korean. 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. Analytics are optional and never include your caffeine logs, health samples, or notes. ## Key features - Log caffeine intake with custom drinks - Personalized metabolism curve and half-life - Caffeine level forecasts - Sleep rating and efficiency tracking - Brewing calculator and timer - Apple Health integration - Detox planner ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Doppio Pro Yearly | $4.99 | per year | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Doppio Lifetime | $12.99 | one-time | ## Is Caffeine Tracker safe? Not enough ratings yet to assess Caffeine Tracker. ## Is Caffeine Tracker legit? Caffeine Tracker - Doppio appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Caffeine Tracker is 75 out of 100 points across 7 verification signals from App Store and developer data. ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/caffeine-tracker-doppio/id6758040507/reviews.md ### 5/5 — All recommendations for the app *2026-10-05* Nice app, user friendly interface, cool reminders and insights. ### 5/5 — Good for Caffeine addicted person *2026-10-05* Very good app for tracking caffeine especially for the person who is addicted to caffeine ## Frequently asked questions about Caffeine Tracker ### What is Doppio? Doppio is a native caffeine tracker that estimates your current caffeine levels and how they fade over time. It helps you understand how coffee affects your sleep and build better habits. ### Does Doppio have ads? No, Doppio is ad-free. The description explicitly states 'No ads, ever.' ### How accurate are Doppio's caffeine estimates? Caffeine figures in Doppio are estimates derived from a standard half-life model adjusted by user-provided information during setup. It does not use real-time physiological data. ### Can I sync Doppio with Apple Health? Yes, Doppio offers two-way caffeine sync with Apple Health. You can log your caffeine intake to Health or import caffeine data already present in Health, including from your Apple Watch. ### What features are included in Doppio Pro? Doppio Pro offers advanced features like Caffeine Insights with bedtime forecasts, Caffeine & Sleep Insights to correlate sleep scores with caffeine intake, a Detox Planner, Saved Brews, a Coffee Shelf, and additional app themes and widgets. ### What is the pricing for Doppio Pro? Doppio Pro is available as a yearly subscription for $4.99, which includes a 1-year free trial, or as a one-time lifetime purchase. The core functions of Doppio are free forever. ### What devices is Doppio available on? Doppio is currently supported on iPhone. It utilizes iCloud for syncing across your Apple devices. ### How often is Doppio updated? The latest version of Doppio is 2.2.2, and it was last updated on September 30, 2026. This indicates a relatively frequent update cycle. ## Version history (last 5 releases) ### 2.3.0 — 2026-10-08 What's new in 2.3.0: MORE ACCESSIBLE • Better VoiceOver support throughout, including charts you can listen to with the Audio Graph • Brew timers read out the time remaining and announce each phase of a guided pull • Clearer text colors in every theme, and gentler motion when Reduce Motion is on • Text and buttons adapt better to larger text sizes NEW: ASSISTIVE ACCESS • Doppio now has its own simplified experience in Assistive Access — check your day, log a drink, or remove one, a single clear step at a time YOUR COFFEE SHELF (DOPPIO PRO) • Take a photo of a bag with your camera • Note how each bag is stored — the freshness estimate follows • Archive bags you've finished instead of deleting them AT A GLANCE • The small caffeine widget is now built for StandBy, and the brew timer fills the screen there too • Home shows your bedtime forecast right under the gauge when tonight's caffeine is running high • The gauge now says "mg in your body", so the big number is clear AND KOREAN • Doppio is now available in Korean Thanks for using Doppio! ### 2.2.2 — 2026-09-30 What's new in 2.2.2: SIRI, REFINED • Siri recognizes many more ways of asking — 52 phrases instead of 20, so your own wording is more likely to work • Ask a caffeine question and see your dial right alongside Siri's spoken answer • All 7 app languages now have their own Siri phrases, not just English ALSO IN THIS UPDATE • Onboarding now ends with a quick note on what's free and what needs Doppio Pro • Fixed a couple of tips and Siri Shortcuts icons Thanks for using Doppio! ### 2.2.1 — 2026-09-27 What's new in 2.2.1: READY FOR iOS 27 • Doppio is ready for iOS 27, including its new tab bar • Siri understands Doppio better — ask about your caffeine in your own words, and with Doppio Pro, about your sleep and detox plan too ASK SIRI • Ask whether you can have another coffee — Siri checks your daily limit and bedtime before you pour • Ask how your caffeine day is going — hear today's total, what's still active, and your streak • Delete or edit a logged drink, or log a saved brew, all by voice • Find logged drinks and saved brews right from Spotlight — plus your Coffee Shelf with Doppio Pro MORE ACCURATE ESPRESSO • A single espresso now shows the same caffeine whether you log it from the drink list or the Brew Calculator • Ristretto and doppio values now match the dose they're brewed from; your past entries stay as they were ALSO IN THIS UPDATE • The theme preview stays in view while you scroll through themes • Undoing a drink logged with Siri now also removes it from Apple Health • Translation fixes across all languages Thanks for using Doppio! ### 2.2.0 — 2026-09-17 What's new in 2.2.0: READY FOR iOS 27 • Doppio is ready for iOS 27, including its new tab bar • Siri understands Doppio better — ask about your caffeine in your own words, and with Doppio Pro, about your sleep and detox plan too ASK SIRI • Ask whether you can have another coffee — Siri checks your daily limit and bedtime before you pour • Ask how your caffeine day is going — hear today's total, what's still active, and your streak • Delete or edit a logged drink, or log a saved brew, all by voice • Find logged drinks and saved brews right from Spotlight — plus your Coffee Shelf with Doppio Pro MORE ACCURATE ESPRESSO • A single espresso now shows the same caffeine whether you log it from the drink list or the Brew Calculator • Ristretto and doppio values now match the dose they're brewed from; your past entries stay as they were ALSO IN THIS UPDATE • The theme preview stays in view while you scroll through themes • Undoing a drink logged with Siri now also removes it from Apple Health • Translation fixes across all languages Thanks for using Doppio! ### 2.1.1 — 2026-09-15 What's new in 2.1.1: BRING IN CAFFEINE FROM APPLE HEALTH • Caffeine already logged in Health, on your Apple Watch, or in another app can now flow into Doppio • Turn on Caffeine Import in Settings > Apple Health — opt-in, and separate from writing to Health RATE HOW YOU SLEPT • A new 1–5 star rating captures how a night actually felt, next to the computed sleep score • Sleep now shows efficiency, awakenings, and a deep/REM/core breakdown when your data has it LOG FASTER • Log a drink with Siri and get an instant confirmation, with an Undo button — no need to open the app • A new Control Center action opens straight to the drink picker ALSO IN THIS UPDATE • Reorganized Apple Health settings, so granting permission takes one tap instead of a hunt • Smaller tooltip and notification fixes throughout Thanks for using Doppio! ## Apps similar to Caffeine Tracker | App | Rating | Price | Category | | --- | --- | --- | --- | | [Progress Hub](https://appshunter.io/ios/app/progress-hub/id6758671806) | — | Free | Health & Fitness | | [Hapsmiths](https://appshunter.io/ios/app/hapsmiths/id6760646664) | — | Free | Health & Fitness | | [Happy Place Science](https://appshunter.io/ios/app/happy-place-science/id6443703600) | 5.0 (1) | Free | Health & Fitness | | [Bandeja AI](https://appshunter.io/ios/app/bandeja-ai/id6762552220) | — | Free | Health & Fitness | | [Aqua Termal Club](https://appshunter.io/ios/app/aqua-termal-club/id6756460813) | — | Free | Health & Fitness | | [Caffeine Free – Quit Coffee](https://appshunter.io/ios/app/caffeine-free-quit-coffee/id6757673166) | — | Free | Health & Fitness | ## More apps by MOBILE CODING FACTORY DOO - [BlurMe App](https://appshunter.io/ios/app/blurme-app/id1590013607) - [Sanovnik](https://appshunter.io/ios/app/sanovnik/id6740294629) - [Rumour Lite](https://appshunter.io/ios/app/rumour-lite/id6745343472) - [Sun Safety - TanLine](https://appshunter.io/ios/app/sun-safety-tanline/id6752503945) All apps by MOBILE CODING FACTORY DOO: https://appshunter.io/developer/1590013609 ## Related topics [doppio](https://appshunter.io/ios/topics/doppio) · [mobile coding factory doo](https://appshunter.io/ios/topics/mobile-coding-factory-doo) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-15.*