Best Datum alternatives: apps like Datum - Calendar

10+ similar apps compared and reviewed

4.0 avg rating

3 free apps

Updated October 2026

Datum - Calendar

Michael Lindinger

🔧 Utilities

🌟 Lifestyle

Datum is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to Datum

DayNumCalc by Mayra M Martinez

Day number & date calculations

Editor's Choice

🔧 Utilities

4.8(6 ratings)

$0.99

This utility app provides quick access to date calculations, including finding the day number for any date, determining a date from a day number, calculating the difference between two dates, and checking the day of the week. It also offers widgets for convenient access on your home and lock screens.

CalculatorXL+ by Datyell Close

calculator with large buttons

Strong Contender

🔧 Utilities

0.0(0 ratings)

$2.99

Midnight Dates by Midnight Beep Softworks

For your most important dates!

Worth Considering

🔧 Utilities

5.0(4 ratings)

$1.99In-App Purchases

Easily track countdowns and count-ups for all your significant life events. Share these milestones with friends and family through various messaging and social platforms. Discover fun date-based facts and impress others with your knowledge of time.

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Highly visible date complicationAdjustable circular complication sizeCustomizable date row colors

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Between Dates Calendar Math

Quick, Easy Date Calculations

$0.99

Calculate the number of days between two dates with a simple interface. Save, recall, sort, and remove date calculations. Add or subtract days from selected dates for quick date projections.

Calculate days between datesSave and recall date calculationsSort and remove saved dates

File transfer between mobiles

$2.99

Easily exchange files and folders between multiple phones wirelessly. View transfer progress, open files within the app, and manage your local file system. Supports various file types and offers customization options for a personalized experience.

Wireless file and folder exchange between phonesView transfer progressOpen files within the app