CaffeineLog vs Decaf AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CaffeineLog
Easily record and manage your daily caffeine intake to support a healthy lifestyle. Diagnose optimal consumption, track over 300 beverage types, and visualize your intake patterns over time. Sync data seamlessly across devices for convenient access.
- Support appropriate caffeine intake diagnosis
- Record from over 300 beverage types
- Customizable logs with tags, images, and notes
- Visual data display with time-series charts
- Seamless device synchronization via iCloud
- Pattern analysis by day, week, month, and year
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Caffeine Log is the ultimate app for effectively recording and managing your daily caffeine consumption, supporting a healthy lifestyle. With a rich set of features and intuitive operations, firmly control your caffeine intake! Main Features Support Appropriate Caffeine Intake Diagnose the optimal caffeine intake based on your user information. Protect your health while enjoying a comfortable caffeine life. Rich Caffeine Data Easily select and record from over 300 types of beverages. Support detailed logging with a wide variety of choices like coffee, tea, energy drinks, and more. Customizable Records Tagging, image attachments, and note additions are possible. Create your own detailed caffeine log. Visual Data Display Instantly check your daily intake and current caffeine level in your body. Track the digestion process with time-series charts. Seamless Device Synchronization iCloud compatible, synchronizing data across multiple devices like iPhone, iPad, Apple Watch, and more. Accessible anytime, anywhere. Highlight Feature for Pattern Analysis Check your caffeine intake and patterns by day, week, month, and year. Review your caffeine habits and aim for a healthier lifestyle. Premium Features Unlimited Customization Unlimited addition of brands and beverages Unlimited editing and adding of categories and foods Unlimited editing and adding of tags Exclusive Design Access to exclusive highlight cards Customizable theme colors Future Premium Features Enjoy the latest features with the ever-evolving Caffeine Log. Manage your caffeine intake smartly with Caffeine Log and achieve a healthy and balanced daily life! Download now and enhance your caffeine experience.
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.
- 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
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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
Verdict
The clearest difference is update cadence: CaffeineLog at every 2 days against Decaf AI's every 6 weeks. Decaf AI's advantage is iOS requirement (13.4 vs 17.0). On price, rating, review sentiment and ratings volume 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
Both are free to download. CaffeineLog sells 2 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.
On the App Store both sit at effectively the same score — 5.0 for CaffeineLog against 5.0 for Decaf AI. Both are backed by a comparable volume of ratings — 3 and 8 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
CaffeineLog ships an update every 2 days, Decaf AI every 6 weeks. The most recent releases landed on July 21, 2026 and September 10, 2026 respectively.
| Parameter | CaffeineLog | Decaf AI |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (8 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 3 | 8 — better |
| Update frequency | Every 2 days — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPod |
| Requires iOS | 17.0 | 13.4 — better |
| Further details — not scored | ||
| Size | 50 MB | 63 MB |
| Age rating | 4+ | 4+ |
| Developer | Yugo Matsuda | Fearless Health LLC |
Customer experience
CaffeineLog
Decaf AI
In-app purchases
CaffeineLog
- Premium Monthly Plan7 Days trial$1.991 Month
- Premium Yearly Plan7 Days trial$14.991 Year
Decaf AI
- Decaf Pro$9.997 Days
- Decaf Pro$29.991 Year
- Decaf Pro7 Days trial$49.991 Year
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- Decaf Pro$49.991 Year








