Release 1.5.5

Your other
mobile number.

Choose a mobile number that protects your privacy and maintains your anonymity.

Download the slynumber app
Download the App

Accepted by all these apps and more!

SLYNUMBER is the best second 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

the app

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

Pick your

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

Start calling
and texting

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


It has all the features you need

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

Private mobile

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

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

Voicemail with custom greeting

A dedicated voicemail for your new 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 calls directly from your iPad without any hassle. Simply dial within the app and you're good to go!


Activate any service

Activate any service that requires SMS verification and
seamlessly integrate SLYNUMBER with your favorite messaging apps and online services.

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 and plans

We are always transparent about our pricing. No hidden fees - ever!

3-Month Base Plan


Total billed: $8.99

Upon purchasing this plan, the following items are included:

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


Upon purchasing this plan, the following items are included:

Unlimited inbound calls
Unlimited inbound texts
100 outbound credits
Choose plan


$10 for 1000 credits

This is a one-time purchase.

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

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.

Can I use SLYNUMBER for online banking?

Yes. SLYNUMBER is a real mobile number, just like a phone number from Verizon, AT&T, or T-Mobile, and can be used for all online banking services and apps. Additionally, it can be used for texting apps, online dating, shopping, Craigslist, and more.

Can I use SLYNUMBER outside of the US?

If you already have a SLYNUMBER account and the app downloaded onto your phone, you can use our service internationally for SMS and personal calls as long as you have a data plan or wifi connection. This is a great way to avoid any roaming fees while traveling abroad.

Can I use my SLYNUMBER for international calls and messages?

No. SLYNUMBER can only be used to make calls and send messages to US or Canadian numbers.

Can I choose my area code?

Yes. SLYNUMBER offers all area codes in the US, so you can keep your phone number private. However, availability varies.

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

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


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!


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


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!


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


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


This is a great app. I tried so many different providers before SLYNUMBER and so far they are the only real mobile number (not VoIP). Highly recommended!


Video tutorials

For helpful tips and tricks on how to use SLYNUMBER, activate apps, and more.