Is DayCalcy safe?

DayCalcy is a simple, private and completely offline date calculator with reminders. Calculate the number of days between dates, add or subtract days, calculate age, compare dates and work with time durations. Save important dates as reminders and get notified when they arrive. DayCalcy works without an internet connection and does not require online services.

Developer: Veevek1
Category: Calculator
Earliest archived version: 12 Oct 2026
License: GPL-3.0-only (per F-Droid metadata)

02 / Release notes

Release notes from F-Droid

15 Oct 2026

3.43.5

Fixed the donation method card background in Light Mode. -Reduced spacing around the offline privacy message on the home screen. -Addressed the missing app title in the F-Droid listing.

Full notes →

12 Oct 2026

3.43.3

Improved layout for small to extra-large display and font sizes - Fixed pressed card effects to stay inside rounded corners - Updated About dialog layout for different screen sizes - GitHub card now matches in Light and Dark mode, renamed Star on GitHub - Privacy Policy stays clickable without the…

Full notes →

03 / Package identity

Technical fingerprint

Application IDcom.daycalculator.dynamic.app

Latest APK SHA-25641bcd6e47c02bd40eddbb2382c519aacfdabf2ddec42a7166c409d12b9bd23cc

Signing certificateF9:74:DF:A2:78:7F:38:30:05:86:30:7B:11:44:34:9F:AB:86:2A:D1:F7:3B:FA:0C:3B:2C:AF:B0:7C:F6:48:09

MIN ANDROID24TARGET36ARCHITECTUREarm64-v8a · armeabi-v7a · x86 · x86_64

04 / History

Archive history

2 versions in WIKI archive: earliest 3.43.3 (12 Oct 2026), latest 3.43.5 (15 Oct 2026).

No change in android.permission.* between 3.43.3 and 3.43.5.

05 / Version archive

Documented releases

2 TOTAL

VersionReleasedAndroidArchitecture

3.43.515 Oct 202624+arm64-v8a, armeabi-v7a, x86, x86_64→3.43.312 Oct 202624+arm64-v8a, armeabi-v7a, x86, x86_64→

06 / 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

Permissions4 declared · 0 sensitive

Signaturepresent

Anti-featuresNo known anti-features

Sensitive accessNo sensitive permissions

Declared permissions

android.permission.POST_NOTIFICATIONS android.permission.RECEIVE_BOOT_COMPLETED android.permission.SCHEDULE_EXACT_ALARM com.daycalculator.dynamic.app.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

Tracker status: Not assessed by WIKI for Android.

07 / Sources

Evidence ledger

Each entry is a captured public reference backing this record.

RepositorySource package page↗Source codeSource repository↗