CircuitLab

Started the tryout, just to see if it is really worth buying. Then in the middle of trying it stops working and requires a paid membership to continue - pretty bad idea - will go with another supplier.

The app sucks, I can only experiment for like 30 seconds before they locked the workspace, requiring me to sign up and other kinds of stuff. Can't even do a simple experiment. Don't waste your time by installing this extension.

waste of time

There is no ad based free version. I deleted my account since there once was such a version. I guess ads do not pay the bills. Too bad. The app is a great tool but not for the cost. Goodbye Circuit-Lab!

Scam!

Ambush registration after a few minutes. Unable to even evaluate it. No CMOS part library.

These people have scammed users for thousands of wasted hours. Either tell people that you are going to charge them on the spot or don't charge at all. Hooking people after they've invested time into something should be illegal - if anything I will consort to calling you a waste of skin, CircuitLab team.

worked fine but tried to charge me and then quit working. wouldn't have minded if they told be that up front but this was a surprise after investing my time starting a circuit.

They said it was free so I signed up, but its not free. I spent an hour making a circuit. Once I was almost done they locked me out of my drawing and required money. They wasted my time and effort.

Having to register for a silly 10 minute demo is ridiculous.