SaaS Metrics
Sideline gives you a second phone number for calling and texting—so you can stay connected without sharing your real number. Get the app today to keep your personal number private.
Whether you're working, selling online, or just want more control over who can reach you, Sideline makes it easy to separate your communications.
Get a second phone number, send unlimited texts, and manage calls with powerful tools—all from one app. Sideline works over your carrier network (not VoIP), so your second number is as reliable as your first.
Take control of your privacy and communication with Sideline.
WHY SIDELINE?
Protect Your Personal Number:
- Get a second phone number for private calling and texting
- Keep your real number separate and secure
- Choose a local area code (or an area code of your choice)
- Includes Caller ID and custom voicemail
- Reliable cellular calling (not VoIP)
Private Texting & Calling:
- Send unlimited SMS and MMS messages
- Use your second number for work, marketplace listings, or signups
- Call and text without revealing your personal number
- Access your number from multiple devices
Stay in Control:
- Auto-Reply sends instant responses when you miss a call
- Custom voicemail with message transcripts
- Port your existing number to Sideline
- Block unwanted callers and manage contacts
Smart Communication Tools:
- Save and reuse frequently sent texts
- Add notes to conversations and contacts
- Stay organized without mixing personal and business messages
USE SIDELINE FOR:
- Private texting and calling
- Work or business communications
- Online buying and selling (Craigslist, Facebook Marketplace, etc.)
- Protect your personal number
FREQUENTLY ASKED QUESTIONS
What is Sideline, and how does a second phone number work?
Sideline is a second phone number app that lets you call and text from a separate number on your smartphone. Just download the Sideline app, and your Sideline number will work alongside your primary number, so you can keep personal and secondary communications separate without needing a second phone.
Can I use Sideline for private texting and calling?
Yes. Sideline is designed for private texting and calling, so you don't have to share your personal phone number with strangers and businesses. Use your second number for work, online selling, dating, or any situation where you want more privacy.
Is Sideline reliable for calls and texts?
Sideline uses your carrier's cellular network (not VoIP), which means your calls are clear and reliable—just like your regular phone number. You can send unlimited SMS and MMS messages and make calls with confidence.
Can I choose or transfer my phone number?
Yes. You can select a second phone number with an area code of your choice, or port (transfer) your existing number to Sideline. This makes it easy to keep a number you already use while gaining more privacy and features.
Who is Sideline for?
Sideline is for anyone who wants a second phone number to keep their personal number private and their communications organized—like professionals and business owners who don't want to carry a second phone, people buying and selling online who don't want to share their real number, freelancers who need to manage client communications—and anyone who values privacy and wants to control who can reach their real number.
Do I need to provide a government-issued ID to create a Sideline account?
No. You do not need to submit a government-issued ID to sign up for Sideline. Instead, you'll verify your account using two-factor authentication (2FA).
DOWNLOAD SIDELINE TODAY
Get a second phone number for private texting and calling. Stay connected—without giving out your personal number.
LEGAL
© 2026 Pinger, Inc. All rights reserved. The TextFree name, associated trademarks, and logos are trademarks of Pinger, Inc. or related entities.
Terms of Service: https://www.sideline.com/terms-of-service/
Privacy Policy: https://www.sideline.com/privacy-policy/
Product Positioning & Context
Related Ecosystem & Alternatives
Discover adjacent products, open-source repositories, and developer tools sharing similar technical architecture.
Deep-Dive FAQs
What is Sideline: Private 2nd Number?
Sideline: Private 2nd Number is a digital product or tool described as: Pinger, Inc.
Where did Sideline: Private 2nd Number originate?
Data for Sideline: Private 2nd Number was aggregated directly from the Apple App Store community ecosystem, representing raw developer and early-adopter sentiment.
When was Sideline: Private 2nd Number publicly launched?
The initial public indexing or launch date for Sideline: Private 2nd Number within our tracked developer communities was recorded on August 25, 2015.
How popular is Sideline: Private 2nd Number?
Sideline: Private 2nd Number has achieved measurable traction, logging over 14,734 reviews and facilitating 4 recorded discussions or engagements.
Which technical categories define Sideline: Private 2nd Number?
Based on metadata extraction, Sideline: Private 2nd Number is categorized under topics such as: Utilities, Productivity.
What are some commercial alternatives to Sideline: Private 2nd Number?
Our semantic intelligence engine identifies potential commercial alternatives in the SaaS space, such as Loom Record for agents, which offers overlapping value propositions.
How does the creator describe Sideline: Private 2nd Number?
The original author or development team describes the product as follows: "Sideline gives you a second phone number for calling and texting—so you can stay connected without sharing your real number. Get the app today to keep your personal number private.
Whether you're ..."
Community Voice & Feedback
I’m using this to manage my church calling so I don’t ignore texts or voice on my main line, but can you do something about having your daily tips and tricks as push notifications? i think they’re helpful but i don’t want the distraction of thinking i got a push notification from a real person
Even with their spam blocker I get about 20 spam calls a day. Now I’m returning calls from people who said they never called me. Junk service. The company then acts like they are surprised by spam on their public facing answer. Totally disingenuous.
Good app but need to be able to mute text messages and use GIPHY
I needed an app to provide me a second phone number for my part time job. I paid for the subscription and set up my account. Before I was even able to make a call or text there was a restricted notification. I reached out to them for help. They told me I violated the terms. I NEVER USED THE APP! So how could I violate any terms and all I did was simply set up my account. They told time to reach out to Apple for a refund. Apple denied my request. So money was stolen on an app that I could not use. Both companies completely failed to provide customer service to right their wrongs.
Great clean app
This is a great app. Everything works as advertised. 💯
Do not download this app they will charge you $31 even if you stop in the middle of signing up before payment was asked
$129 a year!!! WTF!?
Nothing complicated about this! So intuitive, so easy to use! It’s crazy that it’s free! But I’m glad it is!
I’ve been using sideline for a few years now. It’s fantastic to keep work/personal calls separate.
The ability to auto send texts to missed calls is worth every penny. It ensures that I respond to every single call that comes in. It’s constantly getting updated and improving the service.
The ability to auto send texts to missed calls is worth every penny. It ensures that I respond to every single call that comes in. It’s constantly getting updated and improving the service.
This is extremely convenient, to have my work phone tied to my personal one. The calls sometimes don’t come through clear though, and sometimes I don’t get images when sent through text. Overall it’s been pretty good for the price
I’ve been using this app since summer 2020. They’ve gone up in price.. A Lot. But each year they make good changes, especially if you’re an iOS user. They really try to mimic the user functionality of Apple. I do wish they could improve on reactions such as sending emojis and gifs. Other than that. It’s very useful!
There’s a limit to how many people I can call, it’s frustrating
It’s a bit pricey to be honest but I rather pay the cost and have something that really works without ads, without pauses, and that it can ring anywhere in the city without wifi. This is great for me and I love using sideline. Oh and calls never drop or fail. Thank u very much
It does its intended purpose, cant complain.
Discovery Source
Apple App Store Aggregated via automated community intelligence tracking.
Tech Stack Dependencies
No direct open-source NPM package mentions detected in the product documentation.
Media Tractions & Mentions
No mainstream media stories specifically mentioning this product name have been intercepted yet.
Deep Research & Science
No direct peer-reviewed scientific literature matched with this product's architecture.