Support
Something not working, or a question about the app? Send an email and the developer will reply.
Subscriptions and refunds
Apple handles subscriptions. You can manage or cancel yours in the App Store app, or in the app under Settings > Subscription. To ask for a refund, go to reportaproblem.apple.com.
Your data
Your syndicate is stored on your devices and in your own iCloud, not with the developer, so the developer cannot see or restore it for you. The app can export a backup file under Settings > Data. See the Privacy Policy for more.