Sideline vs. GoDaddy (SmartLine)
While GoDaddy SmartLine is a solid option if you need a basic 2nd number, Sideline powers millions of phone numbers with the most reliable service and offers a wide variety of helpful features—all in one app. Both services start at just $9.99/mo. Feel free to compare using the chart below.
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Sideline
GoDaddy (SmartLine)
2nd Phone Number
Choose a reliable 2nd number with unlimited calling, texting, and voicemail. Learn More
Avoid Spam
Detect spam calls, telemarketers, and potential fraud so you can easily avoid them.
Number Porting
Already have a second number? Feel free to port it over from another device or landline.
Voicemail to Text
Voicemails are converted to text so you can go back and reference important information later.
Unlimited Calls & Texts in U.S. and Canada
SmartLine is restricted to U.S numbers only.
Patented Caller ID
Sideline's proprietary caller ID clearly shows when your 2nd number is ringing and who's calling it.
Group Messaging
Send and receive SMS & MMS in a group conversation.
Team Number
Put one number on multiple phones so teams can share a single line of communication. Learn More
Multiple Voicemails
Create and manage multiple voicemail greetings for different circumstances.
Custom Ringtone
Choose a different ringtone for your 2nd number so you can easily tell which line is ringing.
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 $9.99/mo after
Available for iOS and Android.
SentHere's what users are saying about Sideline:
"Awesome app. I've tried a lot of them and this one has the best call quality because it runs off of your cellular network."
- Najee W, Sideline User
"Great app. Great call quality.
Perfect second line."
- Wa J, Sideline User
"A must-have app for small business... It's the best out there. Hands down."
- Nick74952, Sideline User