The best alternatives to Support Ninja are Intercom, Drift, and GoSquared. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of Support Ninja?
AssemblyAI— Speech-to-Text API with superhuman accuracy
Offsi connects with all existing customer feedback channels (Intercom, Zendesk, email, etc.) to help product teams painlessly identify and review relevant conversations at decision time. Keep your team on the same page about how your customers feel.