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Mobile app · Security & privacy

Duper

Lost your phone? Send it "duper".

  • Completely free
  • Android
  • Open source

Overview

Features described in its GitHub repository: offline use.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information
  • “No internet needed on the target device.” — GitHub, 10 November 2026

At a glance

All of Duper is free: no feature is locked behind a paid plan, and its code is open.

Its licence (GPL-3.0) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • No advertising
  • Commercial use allowed

Sources and checks

  • Facts collected from F-Droid (credit card, source code, publisher, licence, free status, platforms, ads, commercial use, version) —
  • Last technical check: 6 November 2026
  • Description from F-Droid — F-Droid (citation courte)

How listings are built →

Do you develop Duper?

Correct this listing with the report form, or cite it with this optional badge (it shows the verified free status and changes nothing in the ranking):

<a href="https://licitpro.fr/en/resource/duper"><img src="https://licitpro.fr/badge/duper.svg?l=en" alt="Listed on LicitPro" height="20"></a>

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