Backblaze

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Syncthing

With pCloud anyone can enjoy 10GB of free cloud storage. pCloud is a secure, European cloud service provider based in Switzerland. The service follows Swiss laws, which are the strictest in the world when it comes to personal data protection. The service feature multi-device usability and multiple file sharing which allows you to send and receive multiple large files simultaneously from anyone.

With Box, you get a single place to manage, secure, share and govern all of the content for your internal and external collaboration and processes. Box provides a secure service that protects sensitive files in the cloud with intelligent threat detection, and complete information governance. All businesses depends on collaboration between people, from teams to customers, partners and vendors. With box it's easy to keep everyone on the same page while working on business critical content.

Amazon Drive is a cloud-based service that provides easy access and storage of your documents, music, photos and videos. With Amazon Drive you can store important and personal files in the cloud for backup or external storage. The service is avalible for Android, iOS  and the web browser. Which means that you can use Amazon Drive from your desktop computer or from your mobile phone.

Resilio Sync is a proprietary peer-to-peer file and folder syncing solution for homes and businesses. The software can be used for sharing files or syncing and transferring enterprise data securley. The peer-to-peer protocol can be accessed with clients available for Android, Amazon Kindle Fire, BSD, iOS, macOS, Linux, Windows and Windows Phone.

With Nextcloud, users can host their own secure cloud solution for file storage, collaboration and communication for enterprise or personal purposes. Nextcloud gives you full control over your own data and where and how you host it. The software can be hosted on-premise or on any VPS or cloud instance provided by third-party web hosts. If you value privacy and security, Nextcloud might be the right choice for you. Nextcloud is both free and open source and developed in an open, transparent and trustworthy manner.

Librevault allows you to transfer data directly from one device to another, securely. Librevault is a free and open-source peer-to-peer file synchronization software, designed with convenience. privacy and security in mind. The software encrypts all data with AES-256 and uses TLS for all transmissions. Their goal is to make a better alternative to BitTorrent Sync and Syncthing.