Datum vs calQuery
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
calQuery
Easily search your iPhone or iPad calendar for past events. Results can be sorted by date, location, or alphabetically. Tapping a result opens the corresponding day in your native calendar app.
- Search past calendar events
- Sort results by date, location, alphabet
- Open events in native calendar
- Supports iPhone and iPad
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With calQuery you can search the calendar of your iPhone of iPad. Unlike the search function of the calendar app, even long past events are found. The search results can be sorted by date, location and alphabet. By selecting a result, the corresponding day is displayed in the calendar app.
Screenshots
Verdict
The clearest difference is price: calQuery at Free against Datum's $1.99. calQuery also leads on iOS requirement (14.5 vs 17.6). Datum's advantage is update cadence (every 3 months vs every 9 months) and device support (5 vs 3). On 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
calQuery is free to download; Datum costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Datum ships an update every 3 months, calQuery every 9 months. The most recent releases landed on September 7, 2026 and June 11, 2026 respectively.
| Parameter | Datum | calQuery |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 months — better | Every 9 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, Mac, Apple Watch, Vision Pro — better | iPhone, iPad, iPod |
| Requires iOS | 17.6 | 14.5 — better |
| Further details — not scored | ||
| Size | 11 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Michael Lindinger | Uwe Holtkamp |
Customer experience
Datum
calQuery
In-app purchases
Datum
No in-app purchases
calQuery
No in-app purchases








