I think that a lot of people generally take a service without an app less serious. Their engagement is way lower, many times simply because they forget.
I know there's already iOS app in development and there aren't enough people to make apps for other platforms, that's why I'd like to suggest something waaay more universal - Progressive Web App.
Cake.co is already a great website and turning it into a PWA, one step at a time shouldn't really be hard: adding a Service Worker can be done using one of many libraries (I often use Workbox in my projects) that integrate seamlessly with most popular build tools. And that's basically all it takes to start with a PWA. Later on you could bring support for something like offline editing of posts or saving conversations for later, push notifications and much more.
The best part? You can install it almost everywhere! PWA can be installed like normal apps on Android, iOS (IIRC), Windows, Linux and Chrome OS and the support is still growing - Microsoft said they will put PWAs automatically in their app store sometime in the future.
I think it would be a great thing as it would take what you already have (this very nice website) and add a cherry 🍒 on top. If you can't eat cherries because you're on an unsupported browser, you still have the rest of the Cake 🍰 as you knew it before 😋
Here are some great resources to get started on PWAs 👇
- https://medium.com/@deepusnath/8dc66bcf6011 (form which I also borrowed this pretty nice image, credits go to author of the article)