Sideline - 2nd Line for Work

In-app purchases
62.2K reviews
Content rating
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About this app


Sideline gives you a 2nd phone number on your smartphone to let you divide your communications easily and without confusion.

Sideline is more than a second line for you and your business. It’s the flexible, personal communication app that gives your customers a work number they can use - not your private one. Already tens of thousands of professionals are using Sideline to help them transform how they keep in touch with their customers with a dedicated second phone number that gives out your professional caller ID - and keeps your professional second line separate from your private one.

By creating a custom business number, Sideline gives professionals like you the chance to connect with customers, build your small business, and manage all your contacts and communications quickly and easily. Basically, you get your own dedicated, personal work number without the hassle of buying a second phone.

Sideline is your second line designed for professionals - and gives you amazing features like:


If you miss a call on your work line, Sideline responds automatically with a custom private message.


Split one business number with multiple devices, so your team or department can be more responsive in answering your work line.


Build your identity with a personalized second number, such as “(555) PET-SHOP” or “(555) FLOWERS.” So you can pick a more durable work line and professional identity, and not just a burner phone number.


Search area codes to find a local second phone number for your company or small business.


Text-enable your business to easily connect with customers using your 2nd or work line.


Manage work numbers on employee devices. (Enterprise account required. See for details)

Because Sideline is so helpful and efficient at helping small business and professionals, we’ve got people porting their Google second number over to Sideline.



All calls are cellular (not VoIP) to make your 2nd phone number as reliable as your 1st.


Calls use your existing carrier plan, so no extra calling credits needed for your second number.


Texting includes SMS and picture messaging, group messaging, and more. So you keep all the functionalities you need.


It’s clear which phone number is ringing, so you can prioritize accordingly.


Record a professional greeting or set up multiple greetings for every situation.


Save time and conveniently read voicemail transcriptions as a text.


Send Sideline calls directly to voicemail on nights, weekends, or holidays.


Transfer an existing number to Sideline from another device or landline.


Access your Sideline business number online and text from the desktop.

Sideline is a business number, not a burner phone! It’s a second number for professionals that brings connections, inspiration and innovation to small business owners. Keep your private and your work number separate and manage your business more effectively.

Download Sideline and create your 2nd line today!



If you miss a call on your work line, Sideline responds automatically with a custom private message.

Privacy policy & terms of use
Updated on
Aug 8, 2022

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
App info and performance
This app may collect these data types
Personal info, Messages and 7 others
Data isn’t encrypted
You can request that data be deleted
62.2K reviews
W. Ed Champin
June 18, 2022
Easy to use and gives you almost all the features of a second phone without the need to carry a another phone of the cost associated with one. There is zero decrease is sound quality like you sometimes get with a VOIP phone line. I like that I can have a unique ring tone and text alert so I know which number is being called/texted.
43 people found this review helpful
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Pinger, Inc
July 12, 2022
Hey Ed, thanks for your review. We're delighted to hear you're enjoying Sideline and its many features. If there's ever anything we can do for you or if you have any questions about Sideline, let us know at We'd be happy to help.
Phil Ruybal
March 17, 2022
I've had this for about 6-7 months now and it worked ok at first, but the last 2 months or so, when I get calls, it comes up as RANDOM area codes from different states! When I do business in 1 state, it's very hard to get calls that show from 5 different states, but they're actually in my state! I use this for work, but I'm so frustrated with the service, that I'm willing to end my subscription and chage my number completely and get a new service, because this one is dangerously unreliable.
113 people found this review helpful
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Pinger, Inc
March 17, 2022
Hi Phil, we're so sorry to hear Sideline isn't displaying the right area codes for your inbound calls. We understand how frustrating that can be for you and your business. If you could please email us the phone numbers and date/time of any such calls at, we'll check out what's going on and get back to you.
Vincent Prezioso
April 18, 2022
This has been a nightmare. I am a NYC Real Estate agent and the app worked great for about four years. Then this past October (2021) all of my incoming calls started showing up as random out of state numbers. I have no idea which calls to pick up and not to pick up. I've been in contact with customer service at least twenty times over the past several months and they keep walking me through the same trouble shooting steps with no success. Then I am told the issue has been escalated to their tech team (at least ten times for this as well). Unfortunately I can't drop the number now as I've been using it for so long and all of my contacts are on here. I most certainly would not recommend this app for business, especially a business like real estate which is very phone-reliant.
107 people found this review helpful
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Pinger, Inc
April 18, 2022
Hey Vincent, we're so sorry to hear Sideline isn't identifying your calls properly. We understand how frustrating this can be for you and your business. If our Support team hasn't resolved your issue yet, please let us know at We'll make sure to get back to you shortly so we can resolve this issue right away.

What's new

Better. Faster. More Reliable. That's our motto for every update. And in this release, performance updates make Sideline all of those things.

If you're enjoying the app, please leave us a rating or review. Need help? Email us at: