Hyperlink Knapsack app
This is a link manager app for Android. There is already plenty of link manager software available to choose from, but from what I've seen all of them are either accessible as a website only or have a mobile app that is also a webapp. This application is therefore built using native Android components to offer a satisfyingly smooth performance on mobile devices.
The app doesn't store any links locally, but loads them dynamically into an infinitely scrollable list from a REST API.
LinkAce has been my favourite bookmarking software for quite some time now, so for now that is the only backend service this app supports. I'm planning to add support for at least one backend some time later, which explains why the LinkAce lists are referred to as collections in the app instead.
To connect to your LinkAce server, tap the triple dots menu in the top right, then Settings. In the Server section specify your server address in a http[s]://<address>[:<port>]/
format and then paste the API token from your LinkAce dashboard into the API key field.