Comparison

Caffeine Tracker vs Caffeine Curve

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Caffeine Tracker

Features
Read full description

Take control of your energy without the crash. Caffeine Tracker helps you stay within healthy limits with smart tracking and insights. FEATURES: • Log coffee, tea, energy drinks, and more • Track daily intake vs 400mg FDA limit • Set caffeine cutoff times for better sleep • Visual progress ring shows your daily status • Yesterday mirror to compare day-to-day • Build streaks with protective shields • Earn badges: Mindful Sipper (7 days), Caffeine Commander (30 days), Master of Moderation (90 days) INSIGHTS & TRENDS: • 7-day bar chart shows weekly patterns • 28-day heat map reveals long-term habits • Track which drinks push you over your limit PRIVACY FIRST: All data is stored locally on your device. No accounts required. No cloud sync. No one sees your data but you. Caffeine Tracker is free and ad-supported. Download now and start optimizing your energy today.

About

Caffeine Curve

This app estimates your current caffeine level in real-time by analyzing dietary caffeine entries from Apple Health. It helps you understand how caffeine affects your body throughout the day, aiding decisions about intake and sleep. The interface is designed for quick, clear information.

Highlights
  • Real-time caffeine level tracking
  • Caffeine absorption and elimination model
  • Apple Health integration
  • Lock Screen widget and Home Screen Widgets
  • Peak and sleep indicators
  • Personalized sensitivity profiles
  • Demo mode for exploration
Features
Read full description

Caffeine Curve helps you track your estimated caffeine level in real time. Using your dietary caffeine entries from Apple Health, the app estimates how much caffeine may still be active in your body throughout the day. It uses an absorption and elimination model to give you a more useful picture than intake alone. It is designed for a simple purpose: to give you the most useful caffeine information quickly and clearly. Whether you are deciding on another coffee, trying to stay in a good range for focus, or avoiding caffeine too close to bedtime, Caffeine Curve helps you understand where you stand right now. Features - Track your estimated current caffeine level - See how your caffeine level changes throughout the day - Reads dietary caffeine data from Apple Health - Check your current level from the Lock Screen widget - Understand how long caffeine may remain active - Clean, simple interface designed for quick checks - Rich Home Screen Widgets: Keep an eye on your caffeine levels and daily trends without even opening the app, featuring beautiful charts and gauges - Smart Complications: New rectangular and dial-top complications clearly show the exact time of your next peak or when you’ll be clear for sleep. - Useful Notifications: Get pinged exactly when you hit your caffeine peak or when your system drops below your personalized sleep-ready threshold. - Peak & Sleep Indicators: Know exactly when your coffee hits its peak and precisely when you are cleared for a good night's sleep - Unmatched Personalization: Choose from 5 different sensitivity profiles to perfectly match your unique body chemistry and caffeine decay rate - Try It Demo Mode: Explore the app's full capabilities and stunning visual charts using sample data before committing to logging your own - Beautiful & Customizable Design: Experience a gorgeous new "Liquid Glass" aesthetic that feels right at home on iOS, plus full control over Light/Dark modes and all-new tinted app icons. Caffeine can be logged automatically by other apps that write to Apple Health, or added manually in the Health app under Nutrition > Caffeine. Caffeine Curve is free to use, with no ads and no in-app purchases. It was built from a real daily need: a simple way to understand caffeine levels clearly, quickly, and without unnecessary extras. Important Individual caffeine metabolism varies. Factors such as genetics, liver health, medications, and pregnancy can affect absorption and elimination. Caffeine Curve is for informational purposes only and does not provide medical advice.

Screenshots

Caffeine Tracker4 screens
Caffeine Curve4 screens

Verdict

The call

The clearest difference is ads: Caffeine Curve at none against Caffeine Tracker's shown. On price, update cadence, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Caffeine Tracker ships an update every 10 days, Caffeine Curve fortnightly. Both last shipped on November 5, 2026.

Scorecard1 real difference · 9 level
Caffeine Tracker versus Caffeine Curve: the parameters behind the verdict, then further details
ParameterCaffeine TrackerCaffeine Curve
PriceFreeFree
Rating—5.0 (5 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—5 — better
Update frequencyEvery 10 days — betterFortnightly
AdsYesNo — better
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better16.6
Further details — not scored
Size26 MB4 MB
Age rating4+4+
DeveloperBlas PrietoHaris Delalic

In-app purchases

None

Caffeine Tracker

No in-app purchases

None

Caffeine Curve

No in-app purchases

Questions

Is Caffeine Tracker free?
Caffeine Tracker is free to download, with no in-app purchases.
Is Caffeine Curve free?
Caffeine Curve is free to download, with no in-app purchases.
Do Caffeine Tracker or Caffeine Curve have ads?
Caffeine Tracker shows ads; Caffeine Curve does not.
Which is updated more often, Caffeine Tracker or Caffeine Curve?
Caffeine Tracker ships an update every 10 days, and Caffeine Curve fortnightly. Most recently, Caffeine Tracker was updated on November 5, 2026 and Caffeine Curve on November 5, 2026.

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