Caffiend vs Tazza
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Caffiend
Effortlessly monitor your caffeine and hydration levels with this intuitive companion app. Log drinks quickly, view daily and historical data, and sync with Apple Health. Enjoy a clean interface with customizable options like Dark Mode and Siri shortcuts.
- Quick drink logging
- Daily and weekly insights
- Detailed history and editing
- Apple Health synchronization
- Interactive widgets
- Dark Mode and Siri shortcuts
- Apple Watch app
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Introducing Caffiend: Your Ultimate Caffeine Tracking Companion Caffiend is your all-in-one solution for tracking caffeine and hydration intake. Designed to integrate seamlessly with iOS, Caffiend leverages powerful features like Health app synchronization, interactive widgets, and a sleek, modern user interface to make tracking your intake effortless. Why Choose Caffiend? • Quick Logging: With one-tap access to your favorite drinks, logging your daily coffee, soda, or energy drinks is a breeze. • Comprehensive Insights: The Home Screen provides a clear view of your daily totals and a graphical breakdown of your past week, helping you stay informed and in control. • Detailed History: The Caffiend Journal lets you explore your caffeine and hydration habits over days, weeks, and months. Made a mistake? No problem—quickly edit your entries, and updates will sync directly with Apple Health. Designed for Modern Lifestyles Caffiend adapts to your preferences with support for Dark Mode, Siri shortcuts, and more. Best of all, Caffiend is a one-time purchase—no subscriptions, ever. You can also now track your daily intake right from your watch! The Caffiend Apple Watch app shows your current caffeine and hydration amounts, with support for logging entries from your wrist coming back next. Your Feedback Matters If you love using Caffiend or have an idea to make it better, your feedback on the App Store means the world. Leave us a review and follow us on X @creative_ave for updates, and let us know how we’re doing! Download Caffiend today and take control of your caffeine and hydration intake like never before.
Tazza
This app tracks your caffeine intake and predicts when you'll be sleep-ready based on your unique metabolism. It offers real-time caffeine decay curves, personalized insights, and convenient logging options across multiple devices. Unlock advanced analytics with a one-time purchase.
- Real-time caffeine decay curve
- Personalized metabolism adjustments
- Sleep-ready countdown
- Apple Watch integration
- Live Activities and Dynamic Island support
- Extensive drink library
- Smart notifications
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Tazza is the caffeine tracker that actually knows you. Unlike generic trackers that treat everyone the same, Tazza builds a real-time caffeine decay curve personalized to your unique metabolism, factoring in sensitivity, health conditions, medications, and lifestyle. Watch your caffeine level drop in real-time and know exactly when you're sleep-ready. REAL-TIME CAFFEINE CURVE See your actual caffeine level right now — not a guess, but a pharmacokinetic model personalized to you. Watch the curve update live with every drink you log. SLEEP-SAFE COUNTDOWN "You'll be sleep-ready by 9:47 PM." No more guessing whether that afternoon coffee will keep you up tonight. PERSONALIZED METABOLISM Your body isn't average. Tazza adjusts for pregnancy, smoking, contraceptive use, CYP1A2 medications, and your personal sensitivity level. Your curve. Your body. APPLE WATCH Log drinks from your wrist in one tap. Complications show your current caffeine level at a glance. Smart predictions suggest what you'll drink based on time of day and habits. LIVE ACTIVITIES & DYNAMIC ISLAND Your caffeine status lives on your Lock Screen and Dynamic Island — always visible, always current. No other caffeine tracker has this. WIDGETS EVERYWHERE 8 widget types for Home Screen and Lock Screen. Plus a Control Center button for instant logging. 100+ DRINKS BUILT IN Starbucks, Dunkin', Dutch Bros, Peet's, Tim Hortons, Monster, Celsius, Red Bull, and more. Plus create unlimited custom drinks. SMART NOTIFICATIONS Get reminded before your personal caffeine cutoff, warned when approaching your daily limit, and celebrated for tracking streaks. INSIGHTS THAT MATTER (Premium) Full analytics with weekly trends, streaks, and activity heatmaps. Sleep correlation insights show how caffeine affects your rest. Siri Shortcuts let you log hands-free. Free to use with a generous feature set. No subscriptions, Premium is a one-time $6.99 purchase.
Screenshots
Verdict
The clearest difference is price: Tazza at Free against Caffiend's $1.99. Caffiend's advantage is in-app purchases (none vs 1) and chart position (#192 vs unranked). On update cadence, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Tazza is free to download; Caffiend costs $1.99 up front. Tazza sells 1 one-off in-app purchase. Caffiend asks for nothing beyond the download.
Caffiend ships an update monthly, Tazza every 2 months. The most recent releases landed on September 20, 2026 and September 8, 2026 respectively.
| Parameter | Caffiend | Tazza |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | 39.7% of reviews | — |
| Number of ratings | — | 2 — better |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Best chart rank | #192 — better | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Requires iOS | 17.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 28 MB | 48 MB |
| Age rating | 4+ | 12+ |
| Developer | Creative Avenue LLC | IVAN ALEJANDRO MUNGUIA CRUZ |
Customer experience
Caffiend
Tazza
Bugs and requests
Caffiend
Reported bugs
27 issues- App crashes on adding items
- App crashes on barcode scan
- App crashes on haptic touch
- Data lost after updates
- Total caffeine incorrect
Show 22 moreShow fewer
- Journal entries not updating total
- Entries not showing in journal
- Unit conversion errors (mL/oz)
- Apple Watch app not downloading
- Barcode scanner not working
- Setup is difficult/unintuitive
- Journal dates/times incorrect
- HealthKit sync issues
- Total hydration inaccurate
- Caffeine not showing up
- Water not showing up
- Negative hydration after deletion
- Caffeine sync to HealthKit incomplete
- App crashes when opening feedback/support
- Entries not syncing between Watch and iPhone
- Some journal entries not included in daily total
- Random caffeine/hydration numbers displayed
- Barcode scanner hit or miss
- Adjusting servings doesn't update caffeine
- Caffeine intake doesn't change after editing servings
- Total caffeine incorrect after adding/deleting
- HealthKit times don't match log times
Requested features
23 requests- Add reminder feature
- Improve drink database (more brands, international)
- Add stats and trends
- Ability to add custom icons
- Siri Shortcuts support
Show 18 moreShow fewer
- Update for newer Apple Watch models
- Ability to edit journal entries
- Visualize caffeine leaving system
- Add estimated BAC
- Improve unit conversions (metric/imperial)
- Allow custom serving sizes
- Add more hydration-only drinks
- Allow adding to previous days
- Option to count coffee/tea as hydration
- Organize custom drinks by name
- Upload pictures for custom drinks
- Caffeine timer feature
- Add drink from Apple Watch
- Complication for Apple Watch
- Fix 'expresso' misspelling
- Edit entries in ml unit
- Graph for week/progress
- Fewer taps for actions
Tazza
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Caffiend
No in-app purchases
Tazza
- Tazza Premium — Lifetime$6.99









