All tasks are stored locally on the user's device. Task Writer does however validate the receipt for a subscription purchase. This is done when Task Writer's server receives the encrypted receipt from the user's device and then sends it to the App Store.
Task Writer's server collects the App Store's response.
The type of data collected is that of receipt data.
The data collected is used for analytics and potential troubleshooting.
The data collected will not be linked to the user.
The data collected will not be used to track the user.