This article will cover how to cancel or refund a MeasureSquare subscription through Apple
This article applies to all Apple products on the iPad, such as MeasureSquare Mobile and Renoplan.
Step 1: Navigate to your iPad's home screen and select "Settings".
Step 2: Tap on the name of your account/profile, and select Subscriptions.
Step 3: Active Subscriptions will appear on the subsequent window. Tap the Subscription and select Cancel Subscription.

You might need to scroll down to find the Cancel Subscription button.
To Request a Refund
Step 1: Sign in to Reportaproblem. Apple.com
Step 2: Select "Request a Refund" in the I'd like to... field.
Step 3: Choose the reason why you want a refund, then choose Next.
Step 4: Choose the app, subscription, or other item, then choose Submit.