Can I bring my TM30 on my phone for my visa extension in Thailand?

You need to PRINT that screen grab of the TM30 out so you can apply for your extension at the immigration office where you stay.

Just so you're clear on what stamp you're here on;

There is no such thing as a 30 day tourist visa 🙁 not from canada not from any where 😮

You showed up here without any visa and were stamped in FREE for 30 days which you can extend once for 30 days for 1900baht.