Comparison

Memorizer vs Caffeinated Calendar

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

Head to head
About

Memorizer

This app helps you learn faster by creating flashcards and reviewing them at optimal times. It uses memory science to build long-lasting knowledge with less effort, organizing study material into groups and offering import/export options.

Highlights
  • Spaced repetition review scheduling
  • Organize decks with groups
  • Import and export flashcard decks
  • Distraction-free study interface
  • Reliable daily study notifications
  • Learn on the go
Features
Read full description

Memorizer helps you learn faster - languages, facts, dates, formulas, or any subject you want. Create simple flashcards, review them at the right time, and build long-lasting knowledge with less effort. Why Memorizer works • Review at the right moment Memorizer schedules each card when you’re most likely to forget it. No planning required - just open the app and review what’s ready. • Powered by proven memory science Our method follows the Ebbinghaus Forgetting Curve to help you retain information longer and reduce the time you spend relearning. • Organize with Groups (new!) Keep your decks structured by topic or lesson. Activate or pause groups to control what appears in your review queue and stay focused on what matters. • Clean and redesigned interface A focused, distraction-free study experience. Everything is simple, intuitive, and optimized for smooth daily use. • Import & export decks Back up your progress or share your decks with friends, students, or colleagues in just a few taps. • Reliable notifications Daily reminders help you stay consistent. Scheduling and delivery have been improved for more accurate timing. Learn anywhere, anytime Have 10 minutes on the bus, during a break, or before bed? Memorizer fits seamlessly into your day and keeps your learning moving forward. Start building strong memory habits today. Your knowledge grows with every card. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Caffeinated Calendar

Aggregate and manage all your calendars in one place with powerful filtering and task management. Customize your view to hide or dim events, connect multiple account types, and utilize quick add features. Includes widgets, recurrence options, and offline access.

Highlights
  • Aggregate multiple calendar accounts
  • Customizable event filtering
  • Integrated task management
  • Natural language quick add
  • Multiple calendar view options
  • Home screen widgets
  • Offline access
Features
Read full description

Caffeinated Calendar aggregates all your calendars in one place and lets you filter out the events you don't need to see. THE FILTER ENGINE Sharing a calendar with your spouse, team, or family? You don't need to see everything. Create filters to hide or dim events by title, description, location, time of day, or day of week. Hide your partner's medication reminders. Dim your coworker's focus blocks. Filter out all-day events from a noisy shared calendar. Your view, your rules. CONNECT ALL YOUR CALENDARS - Google Calendar — Sign in with Google, no passwords to manage - Microsoft Outlook / Office 365 — Full OAuth support - Apple iCloud — Connect with an app-specific password - Any CalDAV server — Nextcloud, Radicale, Baikal, Fastmail, Synology, Zoho, and more - Device calendars — Read from calendars already on your phone - Webcal subscriptions — Subscribe to public calendar feeds - Local calendars — Fully offline, no account needed SIX WAYS TO VIEW YOUR SCHEDULE Day, Week, Month, Year, Agenda, and List views. All support pull-to-refresh, smooth swipe navigation, and a Today button. Create custom calendar views to quickly switch between subsets like "Work Only" or "Personal." TASKS BUILT IN Full task management that syncs with your calendar accounts. Due dates, priorities, subtasks, categories, and progress tracking. Tasks appear alongside events in your Day and Agenda views and on home screen widgets. NATURAL LANGUAGE QUICK ADD Type "Lunch with Sarah tomorrow at noon at Café Roma" and the app parses it automatically. Access Quick Add from the app bar, a home screen widget, or an app icon shortcut. POWERFUL RECURRENCE Daily, weekly, monthly, yearly — with intervals, end dates, and complex patterns like "second Monday of every month." Edit or delete a single instance, all events, or this and future events. EVENT TEMPLATES Save frequently-used events as templates. Create new events with one tap, pre-filled with title, location, duration, reminders, and recurrence. ATTENDEES & RSVP See who's invited, their roles, and their responses. Accept, decline, or tentatively respond to invitations directly from the app. HOME SCREEN WIDGETS Agenda, Compact, and Month widgets that respect your filters. Tap an event to open it directly. A Quick Add widget for instant event creation. IMPORT & EXPORT Open .ics files from email or file managers. Subscribe to public calendar feeds. Share single events or batch export multiple events. HOLIDAY CALENDARS Built-in holiday calendars for 20+ countries across the Americas, Europe, Asia Pacific, and Middle East. Added as auto-syncing subscriptions. CONTACT BIRTHDAYS Automatically creates birthday events from your device contacts. WEATHER FORECAST 14-day forecast in Day and Week views. Free, no tracking. OFFLINE FIRST Create and edit events without an internet connection. Changes sync automatically when you're back online. PRIVACY FOCUSED No analytics. No telemetry. No ads. Your calendar data stays on your device and syncs only to your own calendar accounts. We never see your passwords — Google and Microsoft use secure sign-in, and other credentials are stored securely on your device. Available in English, German, Spanish, French, and Japanese. Terms of Use: https://caffeinatedsoftworks.com/terms/ Privacy Policy: https://caffeinatedsoftworks.com/privacy/

Screenshots

Memorizer4 screens
Caffeinated Calendar4 screens

Verdict

The call

The clearest difference is rating: Caffeinated Calendar at 4.0 against Memorizer's 3.0. Caffeinated Calendar also leads on update cadence (every 5 days vs every 3 months) and iOS requirement (13.0 vs 17.0). On price, ratings volume, 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. Memorizer sells 3 in-app purchases, starting at $2.99 per month and Caffeinated Calendar sells 8 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Caffeinated Calendar holds the better App Store score, 4.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

UpkeepUpdate frequency

Memorizer ships an update every 3 months, Caffeinated Calendar every 5 days. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Memorizer versus Caffeinated Calendar: the parameters behind the verdict, then further details
ParameterMemorizerCaffeinated Calendar
PriceFreeFree
Rating3.0 (2 ratings)4.0 (2 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings22
Update frequencyEvery 3 monthsEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size17 MB37 MB
Age rating4+4+
DeveloperAzamat ValitovCaffeinated Softworks LLC

In-app purchases

3 purchases

Memorizer

Subscriptions3
  • Memorizer 1 Month Pro3 Days trial$2.991 Month
  • Memorizer 3 Months Pro3 Days trial$6.993 Months
  • Memorizer 1 Year Pro3 Days trial$24.991 Year
8 purchases

Caffeinated Calendar

Subscriptions8
  • Individual Account (Monthly)$4.991 Month
  • Duo Account (Monthly)$7.991 Month
  • Family Account (Monthly)$14.991 Month
Show 5 more
  • Friends & Family Account (Monthly)$19.991 Month
  • Individual Account (Annual)$49.991 Year
  • Duo Account (Annual)$79.991 Year
  • Family Account (Annual)$149.991 Year
  • Friends & Family (Annual)$199.991 Year

Questions

Is Memorizer free?
Memorizer is free to download, with in-app purchases available.
Is Caffeinated Calendar free?
Caffeinated Calendar is free to download, with in-app purchases available.
Which has better reviews, Memorizer or Caffeinated Calendar?
Caffeinated Calendar is rated higher. Memorizer averages 3.0 out of 5 from 2 ratings, while Caffeinated Calendar averages 4.0 from 2 ratings.
Do Memorizer or Caffeinated Calendar have ads?
Neither Memorizer nor Caffeinated Calendar shows ads.
Which is updated more often, Memorizer or Caffeinated Calendar?
Memorizer ships an update every 3 months, and Caffeinated Calendar every 5 days. Most recently, Memorizer was updated on November 2, 2026 and Caffeinated Calendar on October 31, 2026.

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