Initial State doesn’t have a free long term, trial account. I’ve looked. It’s 14 days, and as a hobby effort, 14 days is nothing. I’d barely get the project programmed.
I’ve use MediumOne for logging my SenseHat data. They have a free account, as long as you don’t go over 1000 transactions per day. 1000 is not a lot, but for a hobby, logging my attic temperature, it’s good for me. Of course, they do want you to buy a paid subscription, but they only asked a few times, they don’t nag.
Is the free site, there’s a separate site for paid users.
I signed up because it was a) free and b) they have a step-by-step tutorial for the SenseHat. They have pre-defined dashboards. For triggers, they have a semi-graphical programming interface, it uses python, but you link python modules graphically.