Today Ben asks me whether there is some tool which can allow us to get a draft estimation on the size of a BSP application. As far as I know there is no such tool, so I write one by myself:
There are many [free apk download](https://idoras.com) websites such as apkmirror, today i will tell you how to build a website like apkmirror, the programming language i used is [node.js](https://nodejs.org/en/), the database i used is [mongodb](https://www.mongodb.com/), search engine used is [ela