Retro is described as 'Privacy-focused social app enabling users to share photos, videos, and screenshots with friends on a weekly basis, without distractions or need for editing, and offering control over past and present content visibility' and is a Journaling app in the social & communications category. There are more than 10 alternatives to Retro for a variety of platforms, including iPhone, Android, iPad, Android Tablet and Web-based apps. The best Retro alternative is Pixelfed, which is both free and Open Source. Other great apps like Retro are Instagram, Memory: Daily Photo Journal, Daily You and Life on Film.