Synology C2 is described as 'Synchronizes data across all your devices, such as computers, mobile devices, or other Synology NAS. Build a private cloud and ensure files are readily available when and where you need them' and is an app in the backup & sync category. There are more than 100 alternatives to Synology C2 for a variety of platforms, including Windows, Web-based, Mac, iPhone and Linux apps. The best Synology C2 alternative is Nextcloud, which is both free and Open Source. Other great apps like Synology C2 are Dropbox, Syncthing, Google Drive and MEGA.
Offers cloud file storage with end-to-end encryption, automated backup, and multi-device sync. Includes zero-knowledge privacy, password-protected sharing, permissions, and collaboration features. Large file support, offline access, file recovery, and Canadian privacy compliance.
Canada
SparkleShare is a Free Open Source syncing tool. Its light, secure and easy to use. SparkleShare allows you to setup your own servers so you always keep control on your data.
United States
SugarSync is the best way to backup, access, sync, and share all your files and folders including documents, photos, videos, and music — from any computer or mobile device.
United States
Store email, contacts, calendars, photos, music, books, apps and more in the cloud and access them on all your devices. iCloud also provides collaborative services for task management and notes and productivity apps for text documents, spreadsheets and presentations.
United States
A Dropbox-like file manager that let you manage your data anywhere it is located: FTP, SFTP, WebDAV, Git, S3, Minio, Dropbox, Google Drive.
France
EU
Secure cloud backup supporting iPhone, Android, Windows, and more. Featuring quick backups, 256-bit encryption, data protection, and full remote management with file recovery and archiving options.
United States
Storj Object Storage is a distributed cloud object storage which is fully Amazon S3-compatible, globally distributed and encrypted.
United States
CarotDAV is a Simple WebDAV / FTP / SkyDrive / DropBox / GoogleDrive / Box / SugarSync client for Windows OS, available free of charge. It is also able to read GoogleDocs or IMAP.
Japan
Secure file sharing software with end-to-end encryption. Files are encrypted in-browser, and encryption keys are embedded in the URL, never sent to the server. This ensures file content remains private and inaccessible to third parties, including the software administrator and ISPs.
FranceEU
Synchronize your PC, tablet and phone with Jottacloud, and have all your files readily available for both sharing and work.
Norway
Subscription offers expanded shared storage for Drive, Gmail, and Photos; automatic backup for devices; uncompressed media support; cross-device access; family sharing for up to 5 members; dedicated support; and perks like Play credits and special hotel rates.
United States
Open-source, privacy-focused cloud storage using zero-knowledge encryption and blockchain technology, provides secure file transfer, end-to-end encryption, free 10 GB plan, desktop and mobile support, full user control, and no data tracking or ads.
SpainEU
