Rambox is not available for iPhone but there are a few alternatives with similar functionality. The best iPhone alternative is Facebook Messenger Kids, which is free. If that doesn't suit you, our users have ranked more than 25 alternatives to Rambox and three of them are available for iPhone so hopefully you can find a suitable replacement. Other interesting iPhone alternatives to Rambox are Beeper (Paid, Open Source) and Desktop.com (Freemium).
Messenger Kids is a free video calling and messaging app designed for kids to connect with close friends and family from their tablet or smartphone. Kids can only connect with parent-approved contacts, which creates a more controlled environment.
Beeper is a fast multiprotocol single app to chat on iMessage, WhatsApp, and 13 other networks. You can search, snooze, or archive messages. And with a unified inbox, you’ll never miss a message again.
Desktop.com effectively organizes your digital life and keeps your web apps and bookmarks sorted, tagged and searchable under one single icon. Create a shared Desktop for your team and explore new web apps in the integrated App Store.