OnPhone - Second Phone Number for Android

Overview: A Second Line on Your Android Device

OnPhone provides an independent phone line on your Android device without any extra SIM cards or separate carrier accounts. It gives you a private number you control, which you can use for calls and messages while keeping your primary number concealed. Setup is quick — there’s no need to register with additional services beyond the app itself.

Key advantages

• Generate as many secondary phone numbers as you need to organize personal and professional communications.
• Expanded international calling and texting options so you can reach contacts around the world more affordably.
• Swap the outgoing number for each call so you can choose which identity to present to recipients.
• Keep receiving SMS and calls to a number when you move between places — your line follows you, not a physical SIM.
• Avoid buying extra SIMs or juggling multiple carrier plans; everything runs through the app without additional hardware.

How it works

Install the app, pick a new local or international number, and start using it immediately for outgoing and incoming communications. The app routes calls and texts through that virtual line, so your actual device number remains private. Management tools inside the app let you add, remove, or switch numbers on demand.

Typical use cases

• Separate business calls and personal conversations without carrying a second phone.
• Protect your privacy when selling items online or using short-term services.
• Travel frequently and want to call local numbers from a local line without swapping SIM cards.
• Manage multiple projects or clients each with their own dedicated contact number.

Getting started

Download the app from the store, follow the in-app prompts to select a number, and grant the necessary permissions for calls and messages. You’ll be ready to make and receive calls on your new line within minutes.