Internet Multimedia System Connectivity Science & Education Navigation Keyboard & IME Reading
PolyCal

PolyCal

Jason Gyorog  |  Calendar & Agenda

10 Downloads 19 Views v1.7 3.22 MB 4.1+
Download APK

 (3.22 MB)

Editor's Overview

PolyCal is a calendar & agenda application developed by Jason Gyorog, packaged as a single Android APK of version 1.7 weighing in at 3.22 MB. The package targets Android 4.1+ and above. Below you'll find the publisher's own description, a quick spec sheet, and a short buyer-beware checklist so you know exactly what you're installing before tapping download.

Install Checklist

  1. Only download through the button on this page — never from third-party mirrors or shortened links, which are the most common way malware spreads.
  2. File size is a light 3.22 MB, so it installs quickly even on modest connections.
  3. This build is signed by "Jason Gyorog" — always verify the developer name matches what's listed on the app's official store page before installing an update.
  4. After install, Android may prompt you to allow "Install from unknown sources" — approve only this one install, then revoke the permission in Settings > Apps > Special access.
  5. We link directly to the APK file or the publisher's repository; we do not modify the binary. Always run a virus scan after any sideloaded install.

About this app

The color coding is intended to be especially useful for people who must coordinate multiple calendars. Multiple widgets can be added, and they will have separate calendar selection settings.

It is relatively simple, at least by Android project standards, and attempts to use the standard practices for each part. By default, it has no calendar permissions, and so it will be in "screenshot mode" (which was also used to prepare the app widget preview).

Source Code (GPLv2): https://github.com/jasongyorog/PolyCal
Privacy Policy: http://gyorog.com/PolyCal-privacy.html

Details

Versionv1.7
Size3.22 MB
DeveloperJason Gyorog
CategoryCalendar & Agenda
Packagecom.gyorog.polycal
Android4.1+
Last UpdatedOct 29, 2026
Downloads10

Frequently Asked Questions

Is PolyCal free to download?
Yes. The APK file linked from this page is free. The developer may offer in-app purchases once installed, but obtaining the installer itself costs nothing.

What Android version does PolyCal require?
Android 4.1+ or newer. Installing on older devices may cause crashes or refuse to install.

Is PolyCal safe to install?
We link to the exact APK published by Jason Gyorog. We do not modify the file. Still, as with any sideloaded app, scan it with a reputable antivirus before opening it, and only grant permissions the app genuinely needs.

How do I update PolyCal?
Install the newer version on top of the old one — Android will keep your data. If the signature differs, uninstall first (you may lose local progress).

Why is the app not installing?
Common causes: not enough storage, an older Android version than 4.1+, or a conflicting build already installed. Free up space, check your OS version, and uninstall any previous copy before retrying.

How to Download & Install PolyCal

  1. Tap the Download APK button above and save the file to your device.
  2. Open your device Settings → Security (or Apps → Special access → Install unknown apps) and allow your file manager or browser to install unknown apps for this one file only.
  3. Open the downloaded com.gyorog.polycal.apk file from your Downloads folder.
  4. Tap Install and wait for Android to finish.
  5. Open «PolyCal» by Jason Gyorog and grant only the permissions it actually needs.
  6. Revoke the "unknown sources" permission once you are done installing.

Note: this page hosts or links to the installer only. The application name, icon and description are provided for identification. All trademarks belong to their respective owners.