Synchronizing Files and Folders

Cloudiness

Dropbox-Sync

2021-10-10

Autosync for Dropbox - Dropsync (4.6@37,900) Ǥ 15 4 / Dropsync PRO Key (4.5@5,401; ~EUR 7.00) Ǥ 1 $Contains no trackers known to us \o/$ LastUpdate: 2020-02-14
BoxCryptor (4.4@2,730) 6 $Contains no trackers known to us \o/$ LastUpdate: 2013-12-03 Wikipedia (DE); Encryption for Dropbox
Dropbox: Cloud Storage & Drive (4.3@2,113,805) Ǥ 21 4
Sync & Comparison using Dropbox (4@23) Ǥ 7 1 LastUpdate: 2020-03-06
Sync & Comparison - Drive, Dropbox and OneDrive (3.9@344) Ǥ 10 2 LastUpdate: 2020-03-06 Google Drive, Dropbox and OneDrive

Sync with Mega

2021-10-10

Autosync for MEGA - MegaSync (4.3@3,158) Ǥ 15 3

Sync with Box

2021-10-14

Autosync for Box - BoxSync (4.6@1,149) Ǥ 15 3
Box (4.5@197,507) Ǥ 25 4

Sync with Google Drive

2021-10-14

Autosync for Google Drive (4.6@37,045) Ǥ 17 4
Google Drive (4.3@8,383,675) Ǥ 31 1
GDriveSync (4.2@917) Ǥ 14 3 LastUpdate: 2018-03-11 / GDriveSync Pro (3.4@72; ~EUR 1.50) Ǥ 12 1 LastUpdate: 2017-02-08
Gallery Drive Sync (4.1@2,261) Ǥ 12 3 LastUpdate: 2017-06-13
Sync & Comparison - Drive, Dropbox and OneDrive (3.9@344) Ǥ 10 2 LastUpdate: 2020-03-06 Google Drive, Dropbox and OneDrive
Drive Syncrypt (3.8@89) Ǥ 12 1 LastUpdate: 2018-03-15 with optional encryption (AES 256)
Remote File Manager (3.6@290) Ǥ 8 2

Various Cloud Syncers

2021-10-10

spryCloud (5@14) Ǥ 24 $Contains no trackers known to us \o/$ LastUpdate: 2020-01-17
Yandex.Disk (4.7@339,112) Ǥ 30 7 Wikipedia (EN)
Cozy Drive (4.7@932) 7 $Contains no trackers known to us \o/$ cloud storage or self-hosted
Autosync for OneDrive - OneSync (4.6@12,425) Ǥ 15 3
Cloudike (4.6@59) Ǥ 23 7
Microsoft OneDrive (4.5@2,486,276) Ǥ 25 3
pCloud: Free Cloud Storage (4.5@40,945) Ǥ 14 3
PhotoSync – transfer and backup photos & videos (4.5@14,181) Ǥ 23 4 / PhotoSync Bundle Add-On (4.8@2,872; ~EUR 4.00) 0 $Contains no trackers known to us \o/$ LastUpdate: 2019-08-21 between phones, tablets and computers/NAS; instantly, on WiFi, or on a specified location
GMX Cloud (4.5@7,296) Ǥ 16 1
Degoo: 100 GB Cloud Storage (4.4@641,752) Ǥ 20 9
SanDisk Memory Zone (4.3@131,110) Ǥ 24 9 SugarSync, Box, Picasa, Dropbox, Google Docs, SkyDrive, Facebook (FAQ)
JioCloud - Free Cloud Storage (4.3@99,672) Ǥ 36 7
Copy (4.2@16,908) 9 LastUpdate: 2016-01-20
IDrive Online Backup (4.2@9,016) Ǥ 23 6
CloudMAX (4.2@5,135) Ǥ 24 5
Tresorit (4.1@3,968) 9 $Contains no trackers known to us \o/$ Vorstellung 3/2020
Fiabee (4.1@1,019) 6 $Contains no trackers known to us \o/$ LastUpdate: 2017-03-26
4Sync (4@23,334) Ǥ 25 9
MediaFire (3.8@97,037) 7 7
Upvise - CRM Jobs Forms (3.8@274) Ǥ 26 1 Almost an Office-Suite for small businesses
SugarSync (3.6@16,538) Ǥ 16 2
Synchronize Ultimate (3.6@2,920) Ǥ 17 3 LastUpdate: 2020-02-18 Vorstellung 7/2015; synchronize from, to and between different clouds
luckycloud: Sicherer Cloudspeicher aus Deutschland (3.6@24) 13 $Contains no trackers known to us \o/$ Vorstellung 3/2020
Files.fm cloud storage and backup (3.5@401) Ǥ 11 5 Files.fm
BucketAnywhere for S3 (3.5@269) Ǥ 8 1 / BucketAnywherePro for S3 (3.7@50; ~EUR 4.75) Ǥ 8 $Contains no trackers known to us \o/$

Sync with your own Cloud

Synchronisation with support for multiple protocols

2021-10-10

FolderSync (4.5@26,591) Ǥ 21 3 / FolderSync Pro (4.6@22,140; ~EUR 4.75) 19 1 Test 9/2015; FTP, FTPS, SFTP, Samba, WebDAV, Dropbox, Amazon S3, SkyDrive, SugarSync, Ubuntu One, Box.net, LiveDrive, HiDrive, NetDocuments, … Pro with Tasker support
AndFTP (your FTP client) (3.8@30,382) 8 1 / AndFTPPro (3.8@1,017; ~EUR 4.75) 1 $Contains no trackers known to us \o/$ LastUpdate: 2014-08-10 FTP, FTPS; Pro only: SCP, SFTP
Titanium Media Sync (3@1,732; ~EUR 3.25) Ǥ 9 $Contains no trackers known to us \o/$ LastUpdate: 2017-06-30 FTP, SFTP, FTPS, Dropbox
SyncTool (0@0) 8 $Contains no trackers known to us \o/$ LastUpdate: 2018-09-06 Github; FTP, ownCloud/Nextcloud

Synchronisation via Samba (aka SMB aka "Windows-Shares")

2021-10-10

SMBSync2 (4.5@1,982) 11 $Contains no trackers known to us \o/$ Github; Anleitung 11/2017
Sweet Home WiFi Picture Backup (4.2@2,457) 8 $Contains no trackers known to us \o/$ LastUpdate: 2020-02-26 Vorstellung 4/2017 | 3/2018; Camera photos/videos only?
SyncMe Wireless (3.8@5,411) Ǥ 10 1 LastUpdate: 2018-10-01
AndSMB (samba client) (3.2@5,227) 7 1 / AndSMBPro (3.7@138; ~EUR 4.75) 0 $Contains no trackers known to us \o/$

Synchronisation via SSH

2021-10-10

Cactus Secure Sync (2.8@9) 4 $Contains no trackers known to us \o/$ LastUpdate: 2014-05-17
Syncopoli (0@0) 10 $Contains no trackers known to us \o/$ LastUpdate: 2020-03-05 GitLab; rsync client

Synchronisation via FTP

2021-10-10

AndFTP (your FTP client) (3.8@30,382) 8 1 / AndFTPPro (3.8@1,017; ~EUR 4.75) 1 $Contains no trackers known to us \o/$ LastUpdate: 2014-08-10 FTP, FTPS; Pro only: SCP, SFTP

Synchronisation with own Desktop/Server components

2021-10-10

Cozy Drive (4.7@932) 7 $Contains no trackers known to us \o/$ cloud storage or self-hosted
Tonido File Access Share Sync (4.3@4,116) 6 1 requires Desktop component; available from homepage for Linux, Mac, Windows, Raspi
ownCloud (4.1@12,037; ~EUR 0.75) 18 $Contains no trackers known to us \o/$ Github
GoodSync Explorer (3.8@632) Ǥ 14 2
Seafile (3.7@1,719) 13 $Contains no trackers known to us \o/$ Github
Cirrus for owncloud (3.7@502) 14 $Contains no trackers known to us \o/$ LastUpdate: 2016-10-13 Github
Nextcloud (3.6@7,848) Ǥ 24 1 / Nextcloud Dev (5@2) 22 $Contains no trackers known to us \o/$ Github; Kurzvorstellung 8/2016; how to auto-sync
Unison (3.2@37) 2 $Contains no trackers known to us \o/$ LastUpdate: 2019-06-09 requires root
Pydio (2.6@785) 6 $Contains no trackers known to us \o/$
Unison for Android (2.5@32) Ǥ 12 4 LastUpdate: 2017-02-10

Peer2Peer

2021-10-17

Syncthing (4.5@4,861) 14 $Contains no trackers known to us \o/$ Github; cross platform, i.e. also Windows, Mac and Linux; PC Setup Video 9/2016 | 1/2019; Video how Syncthing works 6/2018; Anleitung 2/2021
Syncthing-Fork (4.4@317) 19 $Contains no trackers known to us \o/$ Github
Resilio Sync (3.9@4,811) Ǥ 14 4
Syncthing Lite (3.3@51) 1 $Contains no trackers known to us \o/$ LastUpdate: 2019-01-13
Rsync Server (0@0) 6 $Contains no trackers known to us \o/$ Github
Wormhole (0@0) 4 $Contains no trackers known to us \o/$ Github
SyncMemories (0@0) 3 Github; local via USB; focus on photos
git-annex: cross-platform

Further Readings:

The 20 Best File Sync and Cloud Storage Apps for Android (11/2020)
6 Best Open source Personal Cloud Software to Setup Cloud storage (5/2020 - 9/2020)
Sichere Cloud-Dienste: Alternativen zu Google Drive und Dropbox (5/2020)
Android-Apps ersetzen: Cloud-Dienst (3/2020 - 8/2020)
Best Cloud Storage (6/2019 - 4/2021)
Top 20 Best Cloud Storage and File Sync Apps for Android, iPhone and iPad (5/2019)
Best cloud storage (1/2019 - 7/2021)
The 5 Best File Syncing Apps (11/2018 - 7/2021)
Die Qual der Cloud – Dropbox, Drive, HiDrive, OneDrive… (3/2015)

2021-10-18

IzzyOnDroid