Caffeine Tracker vs Clarity
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
Clarity
This app helps you understand the impact of caffeine on your sleep, energy, and focus. Log your intake quickly and visualize how caffeine's half-life affects your daily cycles and nighttime rest.
- Fast caffeine logging
- Caffeine half-life tracking
- Sleep and recovery insights
- Focus and energy analysis
- Daily and weekly insights
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Clarity is the simplest way to understand caffeine's real impact on your sleep, energy, and focus. Log your intake fast and see how caffeine's half-life affects your entire day — from your 2PM coffee to your nighttime sleep cycles. • Fast caffeine logging and visualization • Caffeine half-life tracking and prediction • Athletes: see how caffeine affects your sleep and recovery • Focus and energy insights, daily and week-by-week Understand your 3PM crash. Improve your sleep by seeing your caffeine carry-over. Use caffeine deliberately, not accidentally. By using this app, you agree to Apple's Terms of Use (https://www.apple.com/legal/internet-services/itunes/dev/stdeula/) and our Privacy Policy.
Screenshots
Verdict
Caffeine Tracker and Clarity both sit at 4.9 stars, but that hides the real split: 100% of Clarity's written reviews are positive against 83% of Caffeine Tracker's. Clarity also leads on iOS requirement (18.0 vs 26.0). Caffeine Tracker's advantage is ratings volume (40 vs 2) and update cadence (every 5 days vs every 2 weeks). 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
Both are free to download. Caffeine Tracker sells 4 in-app purchases, starting at $1.99 per month and Clarity sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.9 for Caffeine Tracker against 5.0 for Clarity. That said, the two scores are not equally well evidenced: Caffeine Tracker has 40 ratings behind it against 2, 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 Clarity's.
Caffeine Tracker ships an update every 5 days, Clarity every 2 weeks. The most recent releases landed on October 17, 2026 and October 16, 2026 respectively.
| Parameter | Caffeine Tracker | Clarity |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (40 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 83.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 40 — better | 2 |
| Update frequency | Every 5 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone | iPhone |
| Requires iOS | 26.0 | 18.0 — better |
| Further details — not scored | ||
| Size | 45 MB | 25 MB |
| Age rating | 4+ | 17+ |
| Developer | Day Well Spent LLC | Nexus Nexus |
Customer experience
Caffeine Tracker
Clarity
In-app purchases
Caffeine Tracker
- Caffeine Club$1.991 Month
- Caffeine Club Annual$9.991 Year
- Caffeine Club Annual7 Days trial$9.991 Year
- Caffeine Club: Lifetime$24.99
Clarity
- Clarity Plus - Monthly3 Days trial$2.991 Month
- Clarity Plus - Yearly$19.991 Year







