Comparison

Caffeine Tracker vs Zeitgeist Journal & Diary

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

Zeitgeist Journal & Diary

This app simplifies journaling by encouraging short, frequent entries instead of long, perfect ones. It helps reduce stress, improve memory, and enhance emotional clarity through a private, feed-like interface. All your thoughts are securely stored with iCloud.

Highlights
  • Short, quick entries
  • Private feed-like interface
  • Stress reduction
  • Memory strengthening
  • Emotional clarity
  • iCloud sync
Read full description

Zeitgeist makes journaling possible for everyone. Many people give up on diaries because they expect long entries, get caught in perfectionism, or feel they do not have enough time. With Zeitgeist you jot down short notes, quick thoughts, or small things you notice in everyday life. It takes only a moment and soon becomes a natural part of your routine. Over time these small entries grow into a meaningful timeline of your life. Research shows that journaling helps reduce stress, strengthen memory, and improve emotional clarity. Even a few words a day can make a difference for your well-being. It looks like a feed but it is completely private. No audience, no likes, no pressure. Just you and your words, kept safe with iCloud. Privacy Policy: https://tiptop.software/zeitgeist/privacy Terms of Use (EULA): https://tiptop.software/zeitgeist/terms

Screenshots

Caffeine Tracker4 screens
Zeitgeist Journal & Diary4 screens

Verdict

The call

The clearest difference is review sentiment: Zeitgeist Journal & Diary at 100% against Caffeine Tracker's 82%. Zeitgeist Journal & Diary also leads on rating (5.0 vs 4.8). Caffeine Tracker's advantage is ratings volume (41 vs 7). On price, update cadence, 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 Zeitgeist Journal & Diary sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Zeitgeist Journal & Diary holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Caffeine Tracker has 41 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 82% of Caffeine Tracker's written reviews are positive against 100% of Zeitgeist Journal & Diary's.

UpkeepUpdate frequency

Caffeine Tracker ships an update every 5 days, Zeitgeist Journal & Diary weekly. The most recent releases landed on September 22, 2026 and July 3, 2026 respectively.

Scorecard3 real differences · 7 level
Caffeine Tracker versus Zeitgeist Journal & Diary: the parameters behind the verdict, then further details
ParameterCaffeine TrackerZeitgeist Journal & Diary
PriceFreeFree
Rating4.8 (41 ratings)5.0 (7 ratings) — better
Positive reviews82.4% of reviews100.0% of reviews — better
Number of ratings41 — better7
Update frequencyEvery 5 days — betterWeekly
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhoneiPhone, iPad — better
Requires iOS26.026.0
Further details — not scored
Size45 MB22 MB
Age rating4+4+
DeveloperDay Well Spent LLCMarcel Wichmann

Customer experience

Caffeine Tracker

All ratings41 ratings
Positive95.1%
Neutral0.0%
Negative4.9%
Written reviews17 reviews
Positive82.4%
Neutral0.0%
Negative17.6%

Zeitgeist Journal & Diary

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 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
2 purchases

Zeitgeist Journal & Diary

Subscriptions2
  • Zeitgeist Plus$3.991 Month
  • Zeitgeist Plus7 Days trial$22.991 Year

Questions

Is Caffeine Tracker free?
Caffeine Tracker is free to download, with in-app purchases available.
Is Zeitgeist Journal & Diary free?
Zeitgeist Journal & Diary is free to download, with in-app purchases available.
Which has better reviews, Caffeine Tracker or Zeitgeist Journal & Diary?
Zeitgeist Journal & Diary is rated higher. Caffeine Tracker averages 4.8 out of 5 from 41 ratings, while Zeitgeist Journal & Diary averages 5.0 from 7 ratings.
Do Caffeine Tracker or Zeitgeist Journal & Diary have ads?
Neither Caffeine Tracker nor Zeitgeist Journal & Diary shows ads.
Which is updated more often, Caffeine Tracker or Zeitgeist Journal & Diary?
Caffeine Tracker ships an update every 5 days, and Zeitgeist Journal & Diary weekly. Most recently, Caffeine Tracker was updated on September 22, 2026 and Zeitgeist Journal & Diary on July 3, 2026.

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