All in One Tees Fashion App, now known as Fashnbox, is an Android app developed by One8Tech. It falls under the Lifestyle category and specifically focuses on shopping. The app offers a wide variety of trendy and youth-oriented fashion clothing for men, women, and couples. It also has a collection of printed t-shirts, mobile backcovers, and mugs to choose from.

One of the best features of the app is that it offers official merchandise for more than 100 brands of your favorite superhero movies. Moreover, it has the latest collection of over 100,000 items from top websites of India's top shopping stores. This makes it a one-stop-shop for all your fashion and merchandise needs.

Another great feature of the app is that it offers hassle-free shopping and easy tracking. The UI/UX of the app is clean and easy to use. You can also customize your own tees with Fashnbox.

In case of any queries, the app has a 24*7 customer support section where you can reach out to the team for help. However, it is important to note that the app does provide contact information for the developer, but it is only for customer support purposes and not for feedback or suggestions.