Sideline vs. Line2

Line2 offers basic VoIP calling, texting, and voicemail, making it an acceptable choice for new small businesses. However, its limited feature set leaves a lot to be desired—especially for personal users.
Sideline powers millions of phone numbers with patented, carrier-level call quality and unlimited texting while boasting a wide variety of features to make communicating with your 2nd number more convenient.
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When you compare,
there's no comparison.

Sideline
Line2

2nd Phone Number

Choose a reliable 2nd number with unlimited calling, texting, and voicemail. Learn More

Yes
Yes

Patented Carrier Call Quality

Unlike Line 2, Sideline uses proprietary technology to connect calls via your cellular network for unrivaled reliability.

Yes
No

Optional VoIP Calling

Sideline lets you connect calls via the internet if your cellular coverage is spotty. Line2 only offers VoIP calling.

Yes
No

Unified Inbox

Sideline streamlines your communication by managing calls and texts in one place.

Yes
No

Advanced Caller ID

Sideline displays a suggested name for incoming callers to help you identify and prioritize them.

Yes
No

Auto-Reply to Calls & Texts

Automatically respond to missed calls and texts whenever you’re busy. Learn More

Yes
No

Multiple Voicemails

Create and manage multiple voicemail greetings for different circumstances.

Yes
No

Live In-App Chat

Have questions or need help? Get assistance immediately!

Yes
No

Follow your calling.

Sideline gives you a 2nd number with all the communication tools you need to start, work, grow, and pursue your passion.

Try it free for 7 days — Only $14.49/mo after

Available for iOS and Android.

Here's what users are saying about Sideline:

5 Stars Rating

"This app rocks! I am a small business owner, and having a second number to keep my personal life personal is awesome. Without needing a second cell phone!"

- Nikolas D, Sideline User

5 Stars Rating

"I definitely recommend Sideline over something like Line2 or spending with grasshopper. Great app guys!"

- Osei J, Sideline User

5 Stars Rating

"I switched from Line2 to Sideline because Line2 had some issues with message delivery."

- Jason P, Sideline User