Mobile app · Backup & sync

SyncUp

An open-source Syncthing client for iPhone and Android.

Completely free
Android and iOS
Open source

Ad-supported exit link (Clictune): an intermediate page may show for a few seconds before the official website. Direct link to the website, no intermediate page

Download for Android (F-Droid)

Link to the official download page, ad-supported (Clictune): an intermediate page may show for a few seconds. Direct link to the download

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Geographic availability: No geographic restriction found in our sources; availability is not checked country by country.

Technical details

Pricing: Completely freeconfirmed by F-Droid
License: MPL-2.0 — Open source (copyleft)confirmed by F-Droid
Open source: Yes
Commercial use: Yesconfirmed by F-Droid
Account required: not documented
Credit card required: Noconfirmed by F-Droid
Watermark: Not applicable
Ads: No
Platforms: Android and iOSEstablished by Android: F-Droid, Unspecified source · iOS: Unspecified source
Publisher: Siddarth Kumar
Latest version: 1.1.16 (14 October 2026)
Latest activity: 14 October 2026
Source code: github.com/siddarthkay/syncup

Overview

SyncUp is a file synchronisation mobile app, available on Android and iOS.

Features described in its GitHub repository and on its official website: API for automation and integration.

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

“Peer-to-peer file sync for iPhone and Android, open source and cloud-free.” — official website, 10 November 2026
“Everything above lifecycle calls goes through the Syncthing REST API at 127.0.0.1:8384 , the same API the desktop client uses.” — official website, 10 November 2026

At a glance

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

Its licence (MPL-2.0) 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 Unspecified source (platforms) — 9 November 2026
Facts collected from F-Droid (credit card, source code, publisher, licence, free status, platforms, ads, commercial use, version) — 6 November 2026
Last technical check: 6 November 2026
Description from F-Droid — F-Droid (citation courte)

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