Here’s how you can create a Power Apps trial under the Per App Plan which is of $20!
Link: https://powerapps.microsoft.com/en-us/pricing/

Under Per App Pricing, look for Try New button where you can start the trial setup process.

Setting up a new tenant

Once you use the above link to, you’ll be taken to the Setup page like any other Dynamics trials you must’ve signed-up for –

1. Fill in an email on which you would want to receive subscription communication email.
   Then, click Next.
   
2. In the next step, if the email address doesn’t exist ()-
   
3. Next, under Tell us about yourself section, enter the basic details.
   
4. Once you fill in these details, click Next. You’ll be asked to enter phone on which you’ll receive the OTP to authenticate
   
5. Enter code and proceed.
   In case you want to change the domain, you can do so before finalizing. Else, you can directly…