Comparison

Caffeine Tracker vs Decaf AI

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

Head to head
About

Caffeine Tracker

Track your caffeine intake and understand its impact on your sleep and health. Get personalized insights, set 'Last Call' reminders, and visualize your consumption trends with detailed charts and widgets.

Highlights
  • Log various caffeine sources
  • Predict caffeine elimination time
  • Set 'Last Call' caffeine reminders
  • Analyze caffeine's impact on sleep
  • Visualize caffeine decline over time
  • Customizable drinks with AI
  • Siri Shortcuts and widgets
Features
Read full description

Alyx is a silly way to track caffeine. Quickly log espresso, lattes or anything else and see how it affects your health, sleep or view other interesting stuff! It uses Apple Health to store your data privately, which means it also syncs with iCloud. Of course, you can log caffeine here. Aside from being a coffee, espresso, energy drink, or general caffeine tracker and journal, there are some interesting things it can do: - Figure out when your body will be caffeine free. - Discover how much caffeine will be in your body at bedtime. - Get your customized "Last Call" for caffeine every day, and set an alarm for it! - See how caffeine consumption impacts the amount of sleep you get. - View how caffeine will decline in your body over the next 12 hours. - See if your caffeine consumption has been trending up or down lately. - Tons of Siri Shortcuts. - Tons of widgets! - Create your own custom drinks, and have AI figure out the caffeine contents! - A Hall of Fame for...caffeine consumption? - Um, what else? Oh, tons of charts! So yeah, you can see how caffeine affects your sleep, overall health, see how much sleep you'll lose, and more. I don't know, it's just a fun app. Download it or don't. Love, Alyx -- SUBSCRIPTION & PREMIUM FEATURES -- Most of Alyx is completely free to use. There are premium features if you upgrade to The Caffeine Club, which includes every widget, adding your own custom drinks, several charts, and sleep forecast features. -- LEGAL -- · View our terms of service here: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ · View our privacy policy here: https://alyxcaffeinetracker.com/privacy/ Subscriptions will be charged to your credit card through your iTunes account. Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period. You will not be able to cancel the subscription once activated. Manage your subscriptions in Account Settings after purchase.

About

Decaf AI

This app helps you break free from caffeine dependence with a personalized, science-backed program. Track your intake, receive guidance, and improve sleep and energy levels for a healthier lifestyle.

Highlights
  • Personalized caffeine reduction plan
  • Log caffeine intake with photos
  • Progress tracking and insights
  • Guidance to quit caffeine
  • Improve sleep and reduce stress
  • Science-backed program
Features
Read full description

Break free from caffeine dependence with Decaf. Our science-backed program helps you reduce, replace, and reset. Sleep better, stress less, and wake up naturally energized. Start your journey to a healthier, caffeine-free life today! HOW TO USE DECAF: 1. Answer questions about your caffeine intake to create your personalized plan. 2. Snap a pic or log your caffeine intake and see your progress. 3. Get tips, insights, and guidance to quit caffeine with ease. Decaf makes quitting caffeine simple and effective. Improve your sleep, reduce stress, and feel naturally energized—all with less effort. We’ll support you with the tools and insights you need to build a healthier, caffeine-free life. Got ideas or questions? Contact us at hello@decaf.app.

Screenshots

Caffeine Tracker4 screens
Decaf AI4 screens

Verdict

The call

The clearest difference is update cadence: Caffeine Tracker at every 5 days against Decaf AI's every 6 weeks. Caffeine Tracker also leads on ratings volume (40 vs 8). Decaf AI's advantage is review sentiment (100% vs 83%) and iOS requirement (13.4 vs 26.0). On price, rating, ads and in-app purchases 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. Caffeine Tracker sells 4 in-app purchases, starting at $1.99 per month and Decaf AI sells 4 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Caffeine Tracker against 5.0 for Decaf AI. That said, the two scores are not equally well evidenced: Caffeine Tracker has 40 ratings behind it against 8, so its average is the more settled of the two. Written reviews are what separate them: 83% of Caffeine Tracker's written reviews are positive against 100% of Decaf AI's.

UpkeepUpdate frequency

Caffeine Tracker ships an update every 5 days, Decaf AI every 6 weeks. The most recent releases landed on October 17, 2026 and October 15, 2026 respectively.

Scorecard4 real differences · 6 level
Caffeine Tracker versus Decaf AI: the parameters behind the verdict, then further details
ParameterCaffeine TrackerDecaf AI
PriceFreeFree
Rating4.9 (40 ratings)5.0 (8 ratings) — better
Positive reviews83.3% of reviews100.0% of reviews — better
Number of ratings40 — better8
Update frequencyEvery 5 days — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhoneiPhone, iPod — better
Requires iOS26.013.4 — better
Further details — not scored
Size45 MB63 MB
Age rating4+4+
DeveloperDay Well Spent LLCFearless Health LLC

Customer experience

Caffeine Tracker

All ratings40 ratings
Positive97.5%
Neutral0.0%
Negative2.5%
Written reviews18 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

Decaf AI

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

Caffeine Tracker

Subscriptions3
  • Caffeine Club$1.991 Month
  • Caffeine Club Annual$9.991 Year
  • Caffeine Club Annual7 Days trial$9.991 Year
One-time1
  • Caffeine Club: Lifetime$24.99
4 purchases

Decaf AI

Subscriptions4
  • Decaf Pro$9.997 Days
  • Decaf Pro$29.991 Year
  • Decaf Pro7 Days trial$49.991 Year
Show 1 more
  • Decaf Pro$49.991 Year

Questions

Is Caffeine Tracker free?
Caffeine Tracker is free to download, with in-app purchases available.
Is Decaf AI free?
Decaf AI is free to download, with in-app purchases available.
Which has better reviews, Caffeine Tracker or Decaf AI?
Decaf AI is rated higher. Caffeine Tracker averages 4.9 out of 5 from 40 ratings, while Decaf AI averages 5.0 from 8 ratings.
Do Caffeine Tracker or Decaf AI have ads?
Neither Caffeine Tracker nor Decaf AI shows ads.
Which is updated more often, Caffeine Tracker or Decaf AI?
Caffeine Tracker ships an update every 5 days, and Decaf AI every 6 weeks. Most recently, Caffeine Tracker was updated on October 17, 2026 and Decaf AI on October 15, 2026.

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