Release 2.0

The best second
phone number
app

SLYNUMBER is the easiest way to add a second mobile number to your phone - no SIM card or new device is needed.

Download the slynumber app
Download the App

Accepted by all these apps and more!

SLYNUMBER is the best 2nd phone number app simply because our mobile numbers work everywhere.

Providers such as: Google Voice, Burner, Hushed, Sideline, Phoner, Dingtone, and TextFree offer VoIP numbers that come with numerous limitations and are currently rejected by many online services and apps. SLYNUMBER is the only mobile app on the market to offer real mobile numbers. No SIM card is required.

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Step by step

How it works

1
Download
the app

Download the free app from the App Store or Play Store and pick a subscription plan.

2
Pick your
number

Handpick your preferred area code and select a new mobile number, or port your existing number.

3
Start calling
and texting

You can communicate with confidence knowing that your privacy is protected. Start making calls and sending texts today!

Features

It has all the features you need

SLYNUMBER offers state-of-the-art features that allow you to use your new 2nd phone number like any other mobile number, and more!

Private mobile
number

SLYNUMBER is not linked to any of your personal information, so you can remain anonymous.

Caller ID
with name

Our app identifies the caller’s name, in addition to the ID, with every call you receive.

Spam call
blocking

Say goodbye to unwanted callers and always know who's on the line with SLYNUMBER.

Voicemail with custom greeting

A custom voicemail for your new local phone number with a personalized voicemail greeting.

AI powered

SLYNUMBER is AI powered

SlyAI utilizes the best AI technology available. It is your personal conversation companion conveniently embedded in the SLYNUMBER app. Just ask and it will answer. It offers a uniquely personalized experience, like having a really smart-friend, the more you talk to it the more it gets to know you.

Latest updates

Turn your iPad into a phone

For the first time, you can make and receive phone calls on your iPad. Unlock the power of calls and messaging, and activate any service you need from your iPad.

Optimized for iPad screens

Our latest release is flawlessly optimized for your iPad screen, regardless of whether it's held vertically or horizontally with a keyboard.

Inbound and outbound calling

SLYNUMBER app enables you to make voice calls directly from your iPad without any hassle. Simply dial within the app and you're good to go!

Benefits

Activate any service

Activate any service that requires SMS verification and
seamlessly integrate SLYNUMBER with your favorite messaging apps and online services. Purchase the best second phone number app on iPhone and Android.

We protect your privacy.

SLYNUMBER provides you with a second line that protects your privacy and helps you maintain your anonymity online. SLYNUMBER is a personal number that is not associated with any name, address, or billing information. No reverse look-up tool can reveal the owner of the number. It is completely anonymous

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Pricing

Pricing and plans

We're always transparent about our pricing. No hidden fees - ever! Purchase your second phone number online now!

3-Month Base Plan

$2.99/mo

Total billed: $8.99

Upon purchasing this plan, the following items are included:

Unlimited inbound calls
Unlimited inbound texts
100 outbound credits per month
Choose plan
Annual Plan

$29.99/year

Upon purchasing this plan, the following items are included:

Unlimited inbound calls
Unlimited inbound texts
100 outbound credits per month
Choose plan
Add-on

Outbound
Credits

$10 for 1000 credits

This is a one-time purchase.

1 credit equals 1 text message
1 credit equals 1-min
phone call
+ Add
FAQ

Frequently asked questions

Do I need to purchase additional credits?

Your subscription includes unlimited inbound text messaging and phone calls, as well as a 100 outbound credits. You may need to increase your outbound messaging credits depending on your usage. Note: 1 credit= 1-minute phone call, 1 text message, or 1 picture message.

Does SLYNUMBER work with financial services?

Yes, since SLYNUMBER provides real mobile numbers, it works with financial services that require phone number verification. You can securely use it to receive SMS codes and other essential notifications from your bank or other financial institutions.

Can I use SLYNUMBER outside of the US?

You can use SLYNUMBER for personal calls or business calls anywhere in the world with no roaming fees. All you need is a data connection (mobile data or WIFI).

Can I use my SLYNUMBER for international calls and messages?

No. SLYNUMBER can only be used to make calls and send messages to phone numbers in the US and Canada.

Can I choose my area code?

Yes. SLYNUMBER offers all area codes in the US, so you can keep your phone number private and get a local number that suits you. Purchase your second mobile number, online, today!

Why can't I find SLYNUMBER in the Apple App Store or Android Play Store?

SLYNUMBER mobile app is only available within the US and Canada and can be downloaded on iPhone (iOS devices) and Android devices. If you are currently outside of the US or Canada, you won't be able to use our service

Why is having a real mobile phone number important?

Real mobile numbers are more versatile and reliable than internet-based VoIP numbers. Many services, including social media, shopping platforms, dating apps, and financial institutions, require real mobile numbers for verification. SLYNUMBER provides you with a second line that functions just like your primary one, ensuring compatibility across various platforms.

How is SLYNUMBER different than a business phone service?

SLYNUMBER is different than business phone services in that it is an app that lets you choose a local phone number to make phone calls and send text messages. You can still take business calls and customer calls from your cell phone but without subscribing to a phone plan from a service provider. Use SLYNUMBER for the call management of all your business needs/business communications and ditch the landline.

Reviews

Don't take our word for it

I can't say enough about how pleased I am with this app and how well it's worked! I had a small problem arise where someone tried to use my number to scam and their customer service was incredible and helped me take care of it! In this day and age where many don't put an emphasis on service, that is not the case with SLYNUMBER! I can't say enough good things about this service!

Chiplarryt

I connected this app in under 5 minutes. Works fast and simple for calling and texting.

Casey6000

Needed an MFA number that would be acceptable to the MFA providers out there while I was traveling outside the USA and couldn't access my US number. This number has worked flawlessly so far. Thank you!

Louielou1234

I use this app to talk to my patients. This way my privacy and identity are protected. It is such an easy app to use. And I'm not a tech savvy person. If I can handle it anyone can

Mbarvelo

I can't tell you how exited I was to add a second number on my phone without an eSIM card?? Since when is this a thing? I love it! The app was super easy to use.

TM0212

This is a great app for my small business. I’ve tried so many different second phone line providers before SLYNUMBER and so far this is the best app with a real mobile number (not VoIP). Highly recommended!

Beth9990
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Best second phone number app

For helpful tips and tricks on how to use SLYNUMBER, activate apps, and other ways you can use your second phone number.