Franz is not available for iPhone but there are plenty of alternatives with similar functionality. The best iPhone alternative is IM+, which is free. If that doesn't suit you, our users have ranked more than 50 alternatives to Franz and 16 are available for iPhone so hopefully you can find a suitable replacement. Other interesting iPhone alternatives to Franz are Dialog Messenger (Free Personal), Tinode (Free, Open Source), GroupMe (Free Personal) and FaceCat (Free).
Fully open source instant messaging server and clients. No proprietary components or non-free dependencies. Backend in pure Go (GPL 3.0), with a command-line administration tool in python + gRPC. Clients for Android, iPhone, and Web - ReactJS (all licensed under Apache 2.0).
Group messaging platform owned by Microsoft. It's absolutely free, whether you're talking to a group of friends, or texting with one person. Best of all, it works on nearly every phone, via push or SMS. With GroupMe, it's easy to reach anyone, anytime, anywhere.
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.
SafeSwiss The world’s most effective end to end encryption security solution including P2P Voice, encrypted email, encrypted storage, ephemeral text chat, docs share & group chat for mobile phone devices and PC's.
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.
Mi Airit a chat app that helps you communicate messages to the right people without receiving unwanted responses or reactions. It is suitable for associations, organizations, companies, schools, communities and even individuals.