2025-08-02 00:00:00 The Dingtoi App was created to help connect buyers and sellers in the second-hand smartphone marketplace, by running a diagnostic scan on any smartphone and checking the core functionalities of the device (touchscreen, Bluetooth, Wi-Fi, etc.). The Dingtoi App will then provide a Summary Report which details what's working and what's not on your smartphone. As a seller, you can share this report with any buyer and maximize your sale. As a buyer, you can rest assured that you will paying for a device that works. If you've found the perfect second-hand smartphone but can't travel to inspect it, ask for the Dingtoi Summary Report and buy it with confidence.