Best calendar apps for Android in 2026

Fossify Calendar is version 1.12.1 from the developer Fossify, updated on October 27, 2026. It is free, shows no ads, and is released under GPL-3.0-only. The package is 7.8 MB.

Privacy comes first. The developer says events stay with you, with no tracking and no intrusive permissions, and that you can set precise times and durations for each entry. Reminders are part of the feature list.

It is a plain scheduler rather than a tool with extras.

Google Calendar, from Google LLC, is free, with no ads and no in-app purchases.

Its main draw is integration. Flight, hotel, concert and restaurant reservations from Gmail can land in the calendar automatically. The same events follow you across an Android phone, tablet, Wear OS device and a computer when you sign in to the same Google account.

You can also view other calendars next to it, including Exchange, and share calendars with family or colleagues so they can view, add or change events.

Period Calendar Period Tracker, by Simple Design Ltd., is free to download, but it shows ads and includes in-app purchases.

The feature list centres on cycle tracking. It covers notifications for menstrual cycles, fertility and ovulation, a reminder for contraceptive pills, rings, patches and injections, and predictions of cycles and ovulation. You can also rewrite the notification text so alerts look discreet on a lock screen.

This is a specialised tracker, not a general calendar for meetings. Treat its predictions as app estimates, not health guidance.

DayCalcy is a date calculator with reminders, not a full calendar. Version 3.43.8 from Veevek weighs 1.7 MB, costs nothing, has no ads, and uses the GPL-3.0-only licence.

It works fully offline. You can count the days between two dates, add or subtract days, work out an age, compare dates and handle time durations. Important dates can be saved as reminders that notify you when they arrive.

There are also countdown widgets for upcoming events and a year progress widget for the home screen. Pair it with a regular calendar app if you need to schedule meetings.

Hebrew Calendar by matta is version 1.21, updated on October 29, 2026. It is free, has no ads, uses the MIT licence, and takes up 15 MB.

The app puts the current Hebrew date on your lockscreen and home screen widget. You can show it in Hebrew script or in English transliteration. It marks Yom Tov, Chol HaMoed, Rosh Chodesh, fast days and minor holidays, and fast days display start and end times.

Shabbat gets a label with the weekly Torah portion, and the lockscreen can also carry zmanim and the Omer count. Optional halachic prayer times are available.

jtx Board, from Techbee e.U., combines journals, notes and tasks in one app. The version is 2.17.03.ose. It is free, has no ads, uses GPL-3.0-only, and is 8.5 MB.

Entries follow the iCalendar standard, so they stay compatible with other apps and services rather than locking you to one provider. The description points to DAVx5 for syncing with a CalDAV server of your choice.

That makes it a fit for people who already run their own sync setup. It is not a month-grid calendar for events.

Persian Calendar is an open-source project at version 10.2.0, last updated on April 22, 2026. That is the oldest update date in this list. It is free, has no ads, uses GPL-3.0-only, and measures 3.4 MB.

Besides the Persian calendar, it supports Gregorian and Islamic dates. The language list is long: Dari, Kurdish, Azeri, Pashto, Arabic, Gilaki, English, Turkish, Japanese, Spanish, Chinese and French. It also adds a compass with Qibla direction, Athan support and an optional Athan player.

The app works with Android's TalkBack feature for accessibility.

Samsung Calendar, from Samsung Electronics Co., Ltd., is free, with no ads and no in-app purchases.

You add and check schedules, receive event notifications, and save a location in each entry. Contacts link in too: you can invite attendees or see a contact's birthday. The developer says you can bring in other calendars, Google Calendar among them, and give events colour codes.

A transparent home screen widget is included.