Last 30 days
Last 30 days
Avg per download
14.8K reviews
Last 30 days
Last 30 days
Avg rev. per download
14.8K reviews
Performance Insights
Category rankings
Competition level
Medium competitionA contested but enterable niche: six figures of monthly volume, not seven.
On the store
Released November 2017 · 312 releases since
Sideline: Private 2nd Number is an iOS app (Free) by Pinger, Inc. in the utilities category, holding #23 in the utilities grossing chart. It draws an estimated 1K downloads a month and holds a 4.4-star rating.
- Monetizes through in-app purchases ranging from $0.99 to $129.99.
- Ships new versions about one a fortnight.
- Latest version is v13.25.1, released September 1, 2026.
- 75% of ratings are five-star.
- Available in 1 language.
- Strongest in US, GB.
- Downloads at 154.8 MB and requires iOS 16.0+.
- Rated 13+.
App details
- Version
- v13.25.1
- Release status
- Regional release
- Age rating
- 13+
- Requires
- iOS 16.0+
- Size
- 154.8 MB
- Languages
- English
- Price
- Free
- First seen
- November 2017
- Top markets
- US, GB
- Publisher country
- US
- Website
- Visit website
- Support
- Visit support
Release history
312 versions tracked
- Version v13.25.1Latest
- Version v13.25
- Version v13.24
- Version v13.23
- Version v13.22.1
- Version v13.22
- Version v13.21.1
- Version v13.20
- Version v13.19
- Version v13.18
- Version v13.17
- Version v13.16
Ships about one a fortnight.
In-app purchases
10 products · United States
- Sideline - Monthly planMonthly$14.49
- Sideline Subscription (Monthly)Monthly$14.49
- Sideline Standard - Early User (Monthly)Monthly$2.99
- Sideline Pro – Monthly PlanMonthly$14.99
- Sideline - Yearly PlanYearly$129.99
- Sideline Standard EarlyAdopter (Monthly)Monthly$0.99
- No Ads (Monthly)Monthly$2.99
- Voicemail to Text (Monthly)Monthly$2.99
- Sideline (Annual)Yearly$99.00
- Sideline - 6-Month PlanHalf-yearly$69.99
What users say
- 5.0
Great option for a 2nd number! ⭐️⭐️⭐️⭐️⭐️
I have been using Sideline for over 10yrs. So long in fact, I think I am one of the original customers. My account says “early adopter” on it. Anyway, this has been incredible for me. You get a 2nd line on your phone (I use it as my business number) so I have my main line and the 2nd line. The best part of this app imo is the fact that you text and call from the same app and you can see all of the communications in one place. Particularly helpful if someone says they haven’t heard from you or they claim you are not responding to them. All the calls and texts are in one place. You can set calls and texts to have different ringers so you know when your sideline is ringing vs your main line. You can set out of office messages and have them respond to every call and text. Mine usually say I am out of the office for a week or so and who to call in my absence. It just does everything you need it to. ⭐️⭐️⭐️⭐️⭐️
Reviewed on version v13.1
- 3.0
This App Has the Best Features
I had this app before it was paid. Loved the features that most apps don’t have, so it operates just like a business line, plus you can choice a special ring tone, change your voice mail greeting, often & more. My issue became serious a few days ago when my new clients were not reaching me because my phone rang once & for them the same BUT it cut them off without access to voice mail. This have cost me great embarrassment and PLUS when I contacted customer service and followed the normal steps. Reinstall the app each time it got worst. I permanently deleted this app & cancelled my subscription and went to Burner app of which is a down grade because I can not access the voice mail, no special ring feature, but I’m grateful to have a working app. I’m disappointed because I still believe sideline is one of the best low cost apps with multi-features I like & appreciated. I guest I will have to upgrade to Grasshopper because I must have a custom voicemail & Burner already has a glitch which prevents me from accessing voice mail. Sideline thanks for years of great service. But when my customer are compromised, that’s just unacceptable. Perhaps this is just what happens in the app world. It’s challenging because all my business cards & social media has the number. Cheers to fixing your challenges as well!
Reviewed on version 3.58
- 1.0
Do not recommended
I won’t go into all the details here, but the long and short story is I get hundreds of calls from a couple of different areas in Puerto Rico. It’s not spoof it’s not scam when I answer the phone they think that I’m calling them they’re not trying to sell me anything that’s scamming me they’re just frustrated as I am. Anyways I raise this issue with Sideline via text and email. They have offered no resolution to me. My biggest issue is that there is not a phone number where I can actually get on the phone and talk to somebody. So as of now I’ve had thousands of calls over a week or 10 days and this is a business number. So I have to stop in answer each and every single call because I don’t know if it’s a potential client. Unfortunately it’s going to take me a lot of time and a lot of money to switch this number over so you can imagine how inconvenient this has been. Again no phone number to talk to somebody from Sideline just days and days of endless nonsense texts and emails that are getting me nowhere. Now I know that there are thousands of people that don’t have an issue. Nor did I for the first six months. And I don’t even know if this is sidelines fault or not. What I’m telling you is that if you have an issue with them good luck trying to get it resolved because you cannot actually talk to somebody. I am a 53-year-old entrepreneur that owns many many many companies. So it’s not like this is a of a phone number that I’m using to cheat on my girlfriend. Anyway I wish you guys the best of luck I hope this does not happen to anybody else.
Reviewed on version v12.28
About Sideline: Private 2nd Number
4,208 characters
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/
Screenshots
8 iPhone screenshots
Sideline: Private 2nd Number iOS app monetises through in-app purchases. The current products and price points are listed in the in-app purchases table on this page.
Sideline: Private 2nd Number iOS app generates an estimated monthly revenue of $500K.
Sideline: Private 2nd Number iOS app download estimates are updated daily. The app maintains a 4.4-star rating based on 14.8K user reviews, indicating strong user satisfaction in the utilities market.
Sideline: Private 2nd Number iOS app holds position #23 in the utilities revenue rankings. The app's performance metrics suggest significant growth potential in a low-competition segment.
You can download Sideline: Private 2nd Number iOS app from the App Store for iOS devices, requiring iOS 16.0 or later. The app offers in-app purchases for enhanced functionality.
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