Date Memos vs Datum
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Solar and lunar calendar support
- Customizable event reminders
- Cross-device iCloud sync
- Widget support with pinned events
- Dark mode
- iMessage app for sharing events
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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.
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.
- 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
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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
Verdict
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
Date Memos costs $0.99 and Datum $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Date Memos ships an update every 2 months, Datum every 3 months. Both last shipped on November 3, 2026.
| Parameter | Date Memos | Datum |
|---|---|---|
| Price | $0.99 — better | $1.99 |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 4 — better | — |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, Mac, Apple Watch, Vision Pro | iPhone, iPad, Mac, Apple Watch, Vision Pro |
| Requires iOS | 27.0 | 17.6 — better |
| Further details — not scored | ||
| Size | 10 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | 泽新 李 | Michael Lindinger |
Customer experience
Date Memos
Datum
In-app purchases
Date Memos
No in-app purchases
Datum
No in-app purchases









