Onion Cam2 is a multimedia iPhone app developed by Yosuke Seki that allows users to take time-lapse photography and create movies in a single go. With this app, users can add their creativity to make interesting and great movies. The app comes with several features such as onion-skin function, guideline display, changing order function, exporting movie function, and saving several projects. The app stores captured images in the app and allows users to export them sideways.

Onion-skin function is a great feature that helps users take gradually changing time-lapse photography easily. Additionally, users can adjust transparency and choose display and non-display mode by one tapping. With guideline display, users can set displaying guidelines and choose display and non-display mode by one tapping. The changing order function allows users to change the order of the pictures. The app allows users to export movies and set the time of switching pictures and the size of exporting files. Finally, users can save up to 15 projects with this app.

Please note that Onion Cam2 requires iOS 10.0 or later to run. While the app developers try their best to make the app bug-free, they will not be liable for any loss or damage caused by the use of this application such as bugs or errors.