Handset is a free Android app developed by Vile Pavinksnyte that lets you add a second phone number to your smartphone. The app is designed to separate your work and private life by allowing you to use a different number for each. With Handset, you can get a phone number from over 90 countries and call or send SMS messages to any country.

One of the main features of Handset is that it safeguards your real number, which is particularly useful for professionals who want to keep their personal number private. The app has a user-friendly interface and offers various customization options. In addition, Handset provides other features such as call forwarding, voicemail, and more.

It's important to note that Handset is a subscription-based app, and prices vary depending on the package you choose. The app offers a free trial period of three days, after which the subscription will automatically renew each month. You can manage your subscription and turn off auto-renewal in your account settings. Handset's privacy policy and terms of use can be found on their website, and support is available through email.