Ninja Number is the Second Phone Number app that lets you choose how you want to communicate. Separate business and personal calls with a designated 2nd phone number. Our industry-leading technology is ‘Always On’ (and trusted for over 20 years by the biggest businesses in the world,) ensuring you have coverage 24/7/365! With Cloud Power and Artificial Intelligence, our app turns your phone into a Virtual Assistant.

Separate business and personal calls. Always know who’s calling when you use Ninja Number as your business phone number through Virtual PBX. When you return calls with the app, your Ninja Number will display, keeping your personal number private.

We’re excited to offer a 7-Day Free Trial for any user who signs up through our website -

AI Auto Reply. Let Ninja Number handle customer questions for you! Customize questions and answers using AI-Powered Auto Reply, sit back and let your phone do the rest. Our best business app technology ensures your incoming texts and voicemails will be scanned for the questions you programmed and will text back with the answers you create.

Cloud-Powered Visual Voicemail. Don’t pay extra for visual voicemail. With Ninja Number’s smart line technology, there’s no need to always answer the phone. Simply read your voicemails and text back – all within the same thread.

Virtual Assistant Business App. Running a business is hard, so put your phone to work. Ninja Number organizes your SMS texts and voicemails, tags and filters your contacts and gives you detailed call tracking and analytics, so you don’t have to do it all.

Loop in team members. Get extra call coverage by looping in four team members. Easily link your Ninja Number to other devices so that when a call comes in, all phones ring. You’ll only ever pay for one subscription. We can also port or transfer numbers for you!

Live Ninjas On-Demand. Want call coverage even when you’re busy or in a meeting, and don’t want your VIP Calls going to Voicemail? With Live Ninjas On-Demand, a professional US-based live operator will answer your calls when you want them to. They’re trained to answer the phones like you would! Pay by the call and never miss another lead again.

Leads without calls. Ninja Number’s virtual phone system empowers you to communicate the way you want. Prefer business text messages? With AI Auto Reply and Cloud-Powered Visual Voicemail, you can text securely and so can your linked team members all in the same thread.

Ninja Number is a smart, protected Second Phone Line app with easy, simple setup. Choose a toll-free or local number to advertise to customers and clients. Want a toll-free vanity number? Our Support Ninjas will work with you to find the number that fits your business line. Your phone is smart, so put it to work.

Currently available in the US only. Requires a Ninja Number Flex subscription to use. You will be charged $9.99 a month until canceled in iTunes subscription settings at least 24 hours before your current period ends. All charges are applied to your iTunes account.

Terms of use:

Privacy policy:

What’s New

Version 6.4.4

Updated verification for linking a phone
Bug fixes and performance improvements

Ratings and Reviews

3.9 out of 5
69 Ratings

69 Ratings

CO2 to you! ,

The most compete option

When I set out to choose an internet based business phone system I did my research, narrowed it down to 4 options and signed up for service. Two failed instantly, the other was not far behind but Ninja Number has proven to be an asset to my over business workflow. The app is consistently upgraded with features that provide me with targeted analytics to assist me in connecting with my customer more frequently and on their terms. The billing process is seamless, support is knowledgeable and so far I have not had any issues at all. At first I did not like the BOT setup system but it did exactly what it was designed to do in setting up my system in minutes.

Developer Response ,

Thank you for the feedback and glad you ultimately chose us as your provider!

SGT MiniNinja ,

Simply put, this simplified my life

This app is great! It drastically cut the cost of me having a separate phone for my business and it’s so easy to set up and use. It’s like having two phones in one, and it does a great job of keeping my business calls and my personal calls in different places so I don’t have to spend time figuring out who to call back if I miss a call. I’ll definitely be recommending this to everyone I know who has their own business!

Developer Response ,

Thank you for the referrals! We designed our app so you could keep personal and business separate, so I'm glad you are seeing the benefit!

kellyz1987 ,

iPhone 8 Plus

I was surprised to see how much functionality the app actually had. I was able to set up my greeting in the app and link my phone right away and it was super easy. Still playing with it, but my favorite part so far is that I can see all of my unanswered calls and texts right on the home screen which keeps me more organized.

Developer Response ,

Awesome feedback! Thanks for sharing.

App Privacy

The developer, Ninja Number, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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