The best alternatives to Free Time 2 are Cal.com, Available for Gmail, and nestpick. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of Free Time 2?
AssemblyAI— Speech-to-Text API with superhuman accuracy
The open source Calendly alternative. Self host it, or have it hosted. Integrate it seamlessly into your business with advanced customization and an open API.
CatchApp instantly notifies when your close friends are "Free to talk". When your close friends open CatchApp, you will get notifications instantly. You don't have to ask your friends "Is it right time to talk?" anymore.
This google chrome extension allows you to paste your availability in text format from your calendar in 2 clicks, within the same window! You can also edit times you're not available. Its faster than any other scheduling software available (ie Calendly)