Alarm clock xtreme timer--free version

Hello Heather,
We're glad to point you in the right direction.
We do have a specialized team who deals with mobile queries.
In this regard, we'd suggest you to contact our mobile team directly to clarify all your queries about AVG mobile apps.

https://support.avg.com/support_contact_form?l=en
After clicking the above link, please select the operating system as "Android" and fill in other requested details. Finally, click on "request answer via email" which will submit a ticket to our mobile team. They will certainly check and get back to you by email.
Please refer this article to submit your queries using your mobile app.  
Thank you for your understanding.

How do I turn off the vibration while the timer is running? I don't need it to keep vibrating the ENTIRE time it's going–just when it goes off. It's incredibly annoying and I'm ready to stop using the app for this after one 5 minute timer.

I've tried on 2 separate phones a Galaxy S10 e and A13 5G. Turning off vibrate in the timer settings doesn't do anything.

Hello Heather,
We're glad to point you in the right direction.
We do have a specialized team who deals with mobile queries.
In this regard, we'd suggest you to contact our mobile team directly to clarify all your queries about AVG mobile apps.

https://support.avg.com/support_contact_form?l=en
After clicking the above link, please select the operating system as "Android" and fill in other requested details. Finally, click on "request answer via email" which will submit a ticket to our mobile team. They will certainly check and get back to you by email.
Please refer this article to submit your queries using your mobile app.  
Thank you for your understanding.