IDer is a free mobile app developed by iDuck srl, available on Android. It is a multifactor authentication app that lets you access your favorite services and promotions with a simple QR Code scan. With IDer, you can create your own digital identities and use them to sign up and access any services and offers without having to register repeatedly or use credentials.

The app works by downloading IDer and creating your digital identity, which you can use to scan IDer QR Codes found on partner sites or advertisements. Once scanned, you'll have immediate access to their services and offers. When you sign up for a service, you'll be asked to authorize the sharing of your data required by the partner for activation of the service, subscription, or purchase.

IDer also lets you manage your privacy by allowing you to control the sharing of your sensitive data. Every time you sign up for a new service, the app will ask for your permission for data sharing. The app offers strong data security with a multi-layer security solution that assures top-level protection. The IDer QR Code has a digital signature to avoid any attempts at cloning or counterfeiting. Data is stored in encrypted databases, and the app's activity section is always updated in real-time. With IDer, forget about passwords, user IDs, and identity thefts.