The best alternatives to Appsmonk are Intercom, Hotline, and ConversityTech. If these 3 options don't work for you, we've listed a few more alternatives below.
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AssemblyAI— Speech-to-Text API with superhuman accuracy
Integrate Conversity with your Facebook Messenger and create the most complete customer engagement tool ever. With Conversity at the backend, you can route & distribute incoming chats to your internal teams, manage offline chats, transfer chats amongst your teams, create multi-party conferences etc.