Name: CalSync - Local Calendar Sync
Availability: InStock
Author: Henrique Couto

01 / Overview

Is CalSync - Local Calendar Sync safe?

CalSync is a free and open source alternative to OneCal, CalendarBridge, and Reclaim.ai. It syncs and merges events between local device calendars — no cloud servers, no accounts, no subscription. When an event appears in one calendar, CalSync automatically copies it to another using a name you choose. All syncing happens directly on your device. Your calendar data never leaves your phone. ⭐ FREE…

Developer: Henrique Couto
Category: Calendar & Agenda
Earliest archived version: 05 Aug 2026
License: GPL-3.0-only (per F-Droid metadata)

02 / Package identity

Technical fingerprint

Application IDdev.henriquecouto.calsync

Latest APK SHA-25667cdccdfda0cb2861cbfcfca1aa0c268326ff60a316d44655251046a1a59ce2a

Signing certificate1B:55:B0:FA:FA:17:44:45:BC:91:A0:7A:12:9E:35:82:D9:36:5E:16:88:2B:A7:4A:70:23:4D:B7:B0:FC:A8:E5

MIN ANDROID24TARGET36ARCHITECTUREx86_64

03 / History

Archive history

3 versions in WIKI archive: earliest 1.9.7 (05 Aug 2026), latest 1.10.0 (22 Sept 2026).

No change in android.permission.* between 1.9.9 and 1.10.0.

04 / Version archive

Documented releases

3 TOTAL

VersionReleasedAndroidArchitecture

1.10.022 Sept 202624+x86_64→1.9.918 Sept 202624+x86_64→1.9.705 Aug 202624+x86_64→

05 / Safety & access

Safety verdict

Authentic — file hash matches the source indexNo ads or tracking flagged by the source

IntegritySHA-256 verified vs source

SourceOpen-source · fdroid

Permissions8 declared · 2 sensitive

Signaturepresent

Anti-featuresNo known anti-features

Sensitive accessREAD_CALENDARWRITE_CALENDAR

Declared permissions

android.permission.FOREGROUND_SERVICE android.permission.FOREGROUND_SERVICE_SHORT_SERVICE android.permission.POST_NOTIFICATIONS android.permission.READ_CALENDAR android.permission.RECEIVE_BOOT_COMPLETED android.permission.WAKE_LOCK android.permission.WRITE_CALENDAR dev.henriquecouto.calsync.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

Tracker status: Not assessed by WIKI for Android.

06 / Sources

Evidence ledger

Each entry is a captured public reference backing this record.

RepositorySource package page↗Source codeSource repository↗