New applications are launched on a daily basis and if you believe you have the skills to create your own and a unique enough idea, you should do it! Aside from the fact that you will have to invest little to no money to get started, it is far less time consuming than the average 9 to 5. Once you have created your application, couple it with the right marketing strategy and you'll be making money in your sleep. The best part about developing applications is that you can do it from anywhere in the world.
On the other hand, if you are not responsible for its tax, then you should declare the equipment in Part III of the Business Property Statement (Equipment belonging to others). Where equipment is declared in Part III of the Business Property Statement, the Assessor will also send a Notice to File to the person reported as the equipment's actual owner.