Comparison

Date Memos vs Datum

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

Head to head
About

Date Memos

Never forget important dates with this app. It supports both solar and lunar calendars, allows for custom reminders, and syncs across all your Apple devices. Pin key events to widgets for quick access.

Highlights
  • Solar and lunar calendar support
  • Customizable event reminders
  • Cross-device iCloud sync
  • Widget support with pinned events
  • Dark mode
  • iMessage app for sharing events
Features
Read full description

Highlights: - Design and develop with native frameworks, bring you smooth experience. - Not only can be used on iPhone and iPad, but also can be used on Apple Vision, Mac and Apple Watch. - Not only designed for iPhone, user Interface is also optimized for Apple Vision, iPad and Mac. - Dark mode supported. - Including powerful but easy use functions such as group, repeat, anniversary and favorite. - Not only can note solar calendar events, but also lunar calendar events. - Set alert's time and date of your event to remind you ahead. - Widget supported, also you can pin your most important events to the top in widget. - Sync across multi-devices with iCloud. - iMessage App supported, you can share your events as stickers to others.

About

Datum

A minimalist calendar application designed for Apple devices, offering a clean interface and customizable widgets for iOS, macOS, and watchOS. View upcoming events, daily schedules, and monthly overviews directly from your home screen or watch face.

Highlights
  • Minimalist calendar interface
  • Lockscreen widgets for iOS
  • Event display widgets
  • Calendar widgets with event marks
  • watchOS calendar and complications
  • Support for iPhone, iPad, Mac, and Apple Watch
Features
Read full description

Datum is a minimalistic iOS, watchOS, macOS and visionOS calendar app. For iOS there are Lockscreen Widgets that show you the current date and there are Lockscreen Widgets that show up to 3 events for today. The iOS and macOS apps include the following widgets: - a small widget that shows the current date and at the bottom the events for this day - a small widget that shows a calendar with up to 3 event marks for each day - a medium widget that shows the same as the first small widget and on the right side a calendar with up to 3 event marks for each day - a large widget that shows the same as the medium widget and a list of the upcoming events - a extra large widget that shows a calendar and a list of the upcoming events (only for iPadOS 15+) The watchOS app shows a calendar with up to 3 event marks for each day. You can switch to the next/previous month by tapping on the arrows at the bottom of the calendar. You can view all events for each day by tapping on a day. There are also complications for all watchfaces included that show you the current date.

Screenshots

Date Memos4 screens
Datum3 screens

Verdict

The call

The clearest difference is price: Date Memos at $0.99 against Datum's $1.99. Datum's advantage is iOS requirement (17.6 vs 27.0). On review sentiment, 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

Date Memos costs $0.99 and Datum $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Date Memos ships an update every 2 months, Datum every 3 months. Both last shipped on November 3, 2026.

Scorecard2 real differences · 8 level
Date Memos versus Datum: the parameters behind the verdict, then further details
ParameterDate MemosDatum
Price$0.99 — better$1.99
Rating5.0 (4 ratings) — better—
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings4 — better—
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, Mac, Apple Watch, Vision ProiPhone, iPad, Mac, Apple Watch, Vision Pro
Requires iOS27.017.6 — better
Further details — not scored
Size10 MB15 MB
Age rating4+4+
Developer泽新 李Michael Lindinger

Customer experience

Date Memos

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Datum

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Date Memos

No in-app purchases

None

Datum

No in-app purchases

Questions

Is Date Memos free?
Date Memos costs $0.99, with no in-app purchases.
Is Datum free?
Datum costs $1.99, with no in-app purchases.
Do Date Memos or Datum have ads?
Neither Date Memos nor Datum shows ads.
Which is updated more often, Date Memos or Datum?
Date Memos ships an update every 2 months, and Datum every 3 months. Most recently, Date Memos was updated on November 3, 2026 and Datum on November 3, 2026.

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