Comparison

HalfCaff vs Caffie

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

Head to head
About

HalfCaff

Features
Read full description

HalfCaff tracks your caffeine intake and shows exactly how much caffeine is in your body right now. Using scientifically-based half-life calculations, HalfCaff answers the one question every coffee lover asks: "Can I have another cup and still sleep tonight?" "○○mg remaining" — Based on your bedtime threshold and the FDA daily limit (400mg), see exactly how much more you can drink at a glance. Features: - Real-time body caffeine level with circular gauge - Remaining allowance display ("○○mg OK to drink") - 24-hour caffeine decay curve - 70+ drink presets (Starbucks, Doutor, Tully's official data) - Home screen widgets (Small & Medium) - Dynamic Island & Live Activities - Personalized half-life based on your caffeine sensitivity HalfCaff Pro unlocks: - Home screen widgets - Dynamic Island display - Unlimited history Includes a 3-day free trial. Terms: https://halfcaff.decoy284.net/terms/ Privacy Policy: https://halfcaff.decoy284.net/privacy/

About

Caffie

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Make caffeine your ally for peak performance and deep sleep. An intuitive tracker app that accurately simulates your "current caffeine levels" and exactly "when it will clear" from your system. Coffee and energy drinks are amazing tools for boosting focus, but consuming them at the wrong time or in the wrong amounts can severely degrade your sleep quality at night. With Caffie, you can see at a glance when caffeine will leave your body, allowing you to plan the perfect time to relax. [Core Features] • Real-Time Level Display: Visualize your naturally decreasing caffeine levels over time with an intuitive graph. • Smart Insights: Receive precise advice based on your current levels, such as "Optimal alertness" or "Avoid further intake." • Clearance Prediction: Automatically calculates the time until your caffeine level "down to adequate level" and "reaches near zero." • Simple Logging: Intuitively log your drinks with a single tap. [Caffine Pro (Premium Features)] Unlock all features permanently for the price of a single cup of coffee. • Home Screen Widget: Check your current caffeine levels anytime without opening the app. • All-Time History Data: Look back at all your past records and analyze your caffeine habits. • Unlimited Custom List: Add your frequently consumed drinks without any limits. *Disclaimer The calculations for half-life and remaining body levels provided by this app are estimates based on general scientific data. They are not intended to provide medical advice. Please consult a medical professional for accurate judgments regarding your health. Caffine is a smart tracker that visualizes your remaining caffeine levels in real time and supports optimal caffeine control. Since you can also check your daily caffeine intake history, you can thoroughly manage your caffeine with just this one app.

Screenshots

HalfCaff4 screens

Verdict

The call

The clearest difference is device support: HalfCaff at 2 against Caffie's —. On price, in-app purchases and iOS requirement 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. HalfCaff sells 3 in-app purchases, starting at $1.99 per 7 days and Caffie sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 5 level
HalfCaff versus Caffie: the parameters behind the verdict, then further details
ParameterHalfCaffCaffie
PriceFreeFree
Update frequencyEvery 6 days—
AdsNo—
In-app purchasesYesYes
DevicesiPhone, iPad — better—
Requires iOS17.0 — better18.0
Further details — not scored
Size4 MB2 MB
Age rating4+12+
DeveloperYutaro KoideKosuke Sakuma

In-app purchases

3 purchases

HalfCaff

Subscriptions3
  • Weekly3 Days trial$1.997 Days
  • Monthly3 Days trial$5.991 Month
  • Yearly3 Days trial$22.991 Year
1 purchases

Caffie

One-time1
  • Caffie Pro$2.99

Questions

Is HalfCaff free?
HalfCaff is free to download, with in-app purchases available.
Is Caffie free?
Caffie is free to download, with in-app purchases available.

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