Syncano is described as 'serverless application platform that gives developers a seamless environment for user management, microservices, real-time data and event driven automations to build user-centric applications' and is an website in the Development category. There are more than 50 alternatives to Syncano, not only websites but also apps for a variety of platforms, including Android, iPhone, Windows and Linux. The best alternative is Firebase, which is free. Other great sites and apps similar to Syncano are GUN (Free, Open Source), remoteStorage (Free, Open Source), Nakama (Free, Open Source) and Etebase (Free, Open Source).
An open protocol for per-user storage OWN YOUR DATA Everything in one place – your place. Use a storage account with a provider you trust, or set up your own storage server. Move house whenever you want. It's your data.
Nakama is an open-source distributed social and realtime server for games and apps. It has a large set of services for users, storage, and realtime communication; as well as specialized APIs like realtime multiplayer, groups/guilds, and chat.
Etebase makes it easy to build end-to-end encrypted applications by taking care of the encryption and its related challenges. Think Firebase but encrypted in a way that only your users can access their data.
5apps helps both developers and users to get the most out of the Web as a software platform. 5apps Deploy is a turn-key deployment and hosting platform for client-side web apps. 5apps Storage is a new kind of cloud storage for the Web, based on an open protocol.
deepstream.io is a clusterable realtime server that handles persistent tcp and websocket connections. It offers data-sync, pub/sub and request/response. It's available for Linux, Mac and Windows and comes with clients in JS, Java and many others.