2ndLine

2ndLine 2ndLine is a music-style calling and texting app that gives you a US number for unrestricted calls and messages. Enjoy caller ID, voicemail, call forwarding, and quick replies—download on Android.

2ndLine

2ndLine is a music-style calling and texting app that gives you a phone number for calls and messages. Get a new number and use it to place calls and send texts without the usual limitations. Want more than plain calls? With 2ndLine, you can also share emojis, stickers, and documents—similar to what you’d expect from a modern social messaging experience.

The app also includes voicemail, so you can send and receive messages anytime and anywhere. Need extra convenience? You can even forward calls when it’s useful for you.

How to Use

• Open 2ndLine and follow the prompts on the screen.
• Select a US country code to see which numbers are available.
• Choose your new number.
• Make sure your internet connection is working before trying a test call or sending your first text.
• If you want all incoming calls to route through 2ndLine, set it as your default dialer (speed dial).
• In Settings, configure things like caller ID, ringtone, background, and quick reply.
• Add a home screen widget for faster access.
• Before placing international calls, check the destination rates inside the app to confirm the cost works for you.

Key Features

Local Phone Numbers

• When you install the 2ndLine APK, you’ll be asked to pick a number from the list shown in the app.
• These numbers are tied to an area code automatically.
• You can also change the area code later if needed.

Caller ID

• If you want to avoid unknown callers—or only respond to people you recognize—2ndLine helps with that.
• When a call comes in, the app shows the caller’s identity so you can decide whether to answer.
• This makes it easier to skip calls from certain people and focus on important ones.

Picture and Video Messages

• Send and receive pictures and videos through 2ndLine.
• A major benefit of this messaging tool is that communication with US and Canadian numbers is completely free.
• When you receive media, you can also save pictures directly to your device.

Custom Ringtones, SMS Alerts, Vibration, and Backgrounds

• You can personalize your experience in several ways.
• If you have a 2ndLine number/account, set different ringtones for different numbers.



• Create custom vibration patterns for incoming calls.
• Assign different SMS alert tones to different contacts/numbers so you’ll know who’s texting before opening the app.
• You can also customize contact backgrounds.

Low-Cost International Calls

• 2ndLine is free for users in the US and Canada, including free calls and texts within each country.
• Calling international numbers (outside the US/Canada) requires payment.
• International calling through 2ndLine is much cheaper than typical long-distance international rates.
• You can top up your account with 2ndLine or earn free credits by completing certain tasks.



• Use those credits or top-up funds to call countries outside the US and Canada at a lower cost.

Pros and Cons

Pros

• Free calls and texts within the US and Canada
• Customizable colors and backgrounds
• Your contacts don’t need to install the app
• No extra charges on mobile plans

Cons

• Only available in a limited number of countries
• Login problems may happen frequently

Download & Install

• Tap the download button to get the 2ndLine APK.
• Save the APK on your device—you’ll need it later.
• Open Android Settings → Security Settings.
• Go to the Device Management section.
• Enable Unknown sources using the toggle.
• Return to the Downloads folder and select the downloaded APK.
• Press Install and wait for the process to finish.
• After installation, open the app from the shortcut and you’re ready to use it.

Summary

2ndLine (Second Phone Number APK) is a practical option if you need a second number for work. It lets you manage two phones on one device, and you can even use an Android tablet as a phone—meaning you can make calls and send texts directly from your tablet.