Steps for watching video ads to get free advanced features
Look at the screenshots below. There are two places you can do that. Place 1. Click any paid feature and you will be reminded as following. Click "watch":
Please remember to finish watching, usually 15 seconds long(if you can't see it, please upgrade your application to the latest).
Place 2. After login, click your head picture(avatar), and you will see Claim trial button on top-right corner. Click it and then click Watch button.
Feel troublesome? Don't mind spending a small money? Then just upgrade your account to unlock all advanced features and remove all ads as well as 5 GB cloud storage so that you can sync your drawings across devices and view & edit CAD files on the go.