Hey there. Glad to hear that you’re enjoying our apps.
SmartThings is working on a web browser portal for their mobile app which will allow you access to your SmartApps using a browser. It is currently in testing and they are looking for user feedback about releasing it to the general public. I would recommend voicing your support for this browser app here: Alpha Opportunity: Browser-Based Web Portal
You can also check our the latest release of RLA which adds support for Custom calendar integrations: [RELEASE] Rental Lock Automater - Airbnb, VRBO, HomeAway, TripAdvisor, Booking, Expedia
I will also pass your feedback to our team.