Your app landing page example looks clean and simple. If you’re building something similar for Blogger, you can start with a lightweight responsive template and then customize the header section with a hero image, download buttons, and a short app description just like Yacine App uses.
I recently worked on a service site myself (Toronto Pearson Airport Taxi service website), and I noticed that clear call-to-action buttons and a simple layout really help users understand what you offer right away. So keep your design minimal, fast-loading, and mobile-friendly Blogger can handle it well if you use proper HTML/CSS inside a static page.
If you want, I can also help you sketch a basic layout for your landing page.
