Google Calendar Sync v2.3.3
APK · 110.8 KB · version code 10 · Android 2.3.3+ · uploaded Mar 22, 2012
- v2025.10.0-735189449-release uses a different certificate Details
Quick check before downloading
Answer this to unlock the download. It keeps automated downloaders away.
Compared with the latest version
The latest version is v2025.10.0-735189449-release, uploaded Feb 21, 2026 — about 13 years after this one.
- Size: this file is 110.8 KB; the latest is 6.1 MB (6 MB larger).
- Android: this version needs Android 2.3.3+; the latest needs Android 11+. Use this one if your device runs an older Android release.
- The latest version asks for 5 more permissions: View network connections, Run at startup, Prevent the device from sleeping, Receive push notifications, Read Google service settings.
- The latest version no longer asks for: Googleapps google auth (custom).
File information
- Version
- v2.3.3 (10)
- Uploaded
- Mar 22, 2012
- Size
- 110.8 KB
- Requires
- Android 2.3.3+ (API 10)
- CPU support
- Any (no native code)
- Google Play services
- Required
- Screen
- Small screens and larger
- MD5
- 9ce1ed4bfae0424cd6bc8d8f1f9b6549
- Signing certificate (SHA-1)
- 38:91:8A:45:3D:07:19:93:54:F8:B1:9A:F0:5E:C6:56:2C:ED:57:88
- Signed by
- CN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
- File name
- com-google-android-syncadapters-calendar-10-377697-9ce1ed4bfae0424cd6bc8d8f1f9b6549.apk
- Package
- com.google.android.syncadapters.calendar
- Downloads (all versions)
- 13.9M
- Age rating
- PEGI 3 · Everyone
Permissions (10)
This version requests 10 permissions, 2 of them sensitive.
- Read calendar Sensitive android.permission.READ_CALENDAR
- Write calendar Sensitive android.permission.WRITE_CALENDAR
- Full network access android.permission.INTERNET
- Googleapps google auth (custom) com.google.android.googleapps.permission.GOOGLE_AUTH
- Read sync settings android.permission.READ_SYNC_SETTINGS
- Read sync stats android.permission.READ_SYNC_STATS
- Subscribed feeds read android.permission.SUBSCRIBED_FEEDS_READ
- Subscribed feeds write android.permission.SUBSCRIBED_FEEDS_WRITE
- Use credentials android.permission.USE_CREDENTIALS
- Write sync settings android.permission.WRITE_SYNC_SETTINGS
Security & authenticity
Security rating: Trusted
Signing certificate
- Certificate with Google's generic name Google Play App Signing gives the keys it manages this name, but anyone can put it in a certificate, so this alone proves nothing.
- v2025.10.0-735189449-release uses a different certificate v2020.20.5-319002662-release and v5.2.3-99827563-release use the same one as this file. Android normally won't update an installed app with a file signed by another certificate, and a new certificate can mean a different publisher. v2025.10.0-735189449-release
Store checks
- Developer signature under review Feb 21, 2026
- Antivirus scan passed Nov 4, 2020
- Uploaded by “zarattustra” 1 followers · uploading since 2012
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (3 other versions compared). AAPKs doesn't scan files itself.
How to install Google Calendar Sync on Android 2.3.3+
You'll need about 221.6 KB of free space.
- Download the APK — tap Download APK above (110.8 KB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap com-google-android-syncadapters-calendar-10-377697-9ce1ed4bfae0424cd6bc8d8f1f9b6549.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be 9ce1ed4bfae0424cd6bc8d8f1f9b6549. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. If Google Play Protect shows a warning, read it before you continue: the source store rated this file Trusted, but only install apps from sources you trust. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open Google Calendar Sync — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 2.3.3+). Download it again, or pick an older version.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.