Thanks for reaching out. I am Aidityo, sales manager and would like to update you that, our App42 Platform has a 3 months free trial, unless you are an Indie (either not a company or have only one app running on our platform).
Also, I just checked your usage, and I am happy to let you that, you can keep using the platform for free, till your app starts making 1 Million API Calls/month:)
Hope, this puts your mind at ease.
Let me know, if you have any further queries.