Once Alternatives
Once is described as 'Engage your audience with interactive stories. Our stories on the web are specifically designed for interactions (polls, AMAs, sliders, surveys, CTAs…). They deliver an immersive mobile-first experience to your audience' and is an app. There are three alternatives to Once for Online / Web-based. The best alternative is Ampstor, which is free. Other great apps like Once are Visual Stories and MakeStories.
Build or edit interactive web stories with 0 code and in couple of minutes using Templates tested on 20+ devices.
Features
Harness Google's AMP technology to create highly engaging Stories. Design an appealing Visual Story with the help of our easy-to-use tool in a few simple steps. It's fast, fun and easily customizable.
MakeStories is the AMP story builder to create stories with zero coding in just a few minutes with a huge array of pre-made templates and full featured, drag-and-drop editor.