House Architect Offline is a free Android app developed by WALZAR that teaches architectural design. With its fully responsive and modern design, the app is easy to navigate. It also uses Font Awesome and Glyph icons as well as the Bootstrap framework to make it more user-friendly.

One of the best things about House Architect Offline is that it can be used offline, so you can learn architectural design anywhere, anytime. The app is loaded with tutorials that are easy to understand and follow. However, it's worth noting that ads are integrated into the app to provide it for free.