The best apps for a second phone number

Now, you no longer need to squander a second phone number through a wireless carrier. Instead, you can rely on some of the best Andriod apps and iPhone apps on the market to add a second dedicated line to your smartphone.

Whether you want extra privacy or an auxiliary line dedicated to business or travel, these apps can provide you with an auxiliary number. This way, you can keep your main phone number secret and only provide it to trusted contacts.

Second Phone Number: Sideline

Sideline is a business-oriented application that provides a second phone number as well as calling, texting and voice mail functions, designed to collaborate with your team and with customers in the workplace. All calls are cellular and use your existing carrier plan.

Texting includes SMS, MMS picture message and group message. The professional version features include a team number, and you can assign a number among multiple devices.

The app also allows you to use a personalized phone number to establish a unique identity and spell out your name or product in it.

You can select the area code to find the available local numbers in your area. If your team cannot pick up the phone right away, you can use the automatic reply via SMS or MMS. A corporate account allows you to manage company phone numbers on employee devices.

Other features include customizing the caller ID so you know the phone number that is ringing, business voice mail and greetings, voice mail to text, and automatic voice mail during non-business hours.

You can choose a new Sideline phone number and port number from the burner number, Google number, Smartline, Line2 or other services. Sideline is available for a 7-day free trial, after which you can subscribe to a no-contract monthly or annual plan for $10 per month, $50 for six months, or $100 per year.

Google Voice

If you have a personal Google account, Google Voice will provide you with a phone number for your smartphone or computer calls, text messages, and voice mail.

It can even synchronize across devices for continuous connection and message management. The application will automatically filter out spam and block the specified number. You can arrange personalized settings to forward calls, SMS and voice mail.

All communications are stored and backed up, so you can easily search the history. Google Voice provides advanced voicemail transcripts, which you can read in the app or send it to email.

The app allows you to call international destinations at competitive rates, and the operator does not need to pay extra for international calls.

The best apps for a second phone number

Google Voice calls are made through the app’s access number and use the standard minutes in your own mobile phone plan. Google Voice is only available for personal Google accounts in the US and G Suite accounts in certain markets. Not all markets support SMS.


With Flyp, you can control the life of your smartphone, and you can use the app to effectively separate work and personal calls. Flyp allows you to add up to five U.S. phone numbers to existing calls with any local area code of your choice.

You can also send and receive unlimited calls, text messages, photos and GIFs between any US phone number and any international Flyp phone number. You can restrict incoming calls to anyone and set a “do not disturb” message for any of your numbers.

This is a good choice if you want to manage all calls, text messages and voice mail through one application. The first number you add is free for 7 days, but it costs $8 per month and $80 per year thereafter.

Cloud SIM

If you need to use multiple phone numbers on your smartphone to make international calls between mobile phones and fixed phones, you can choose Cloud SIM (providing phone numbers from the US, UK, Canada and Poland) to solve the problem.

The service provides low-cost and free fees for calling or SMS sending without additional roaming charges, allowing you to choose the connection type, and you can set up calls via local access (GSM), mobile data or Wi-Fi. In this way, you don’t have to worry about poor reception or interruptions in 200 countries/regions.

Cloud SIM can easily receive texts and dial your new number, use Wi-Fi or data for free text chat between phones worldwide, share pictures, and use local access during free time when you are traveling or without internet . It provides a dedicated voice mail for each individual mobile phone number. You can purchase up to four virtual numbers.


Burner provides you with a second line for regular interactive calls, text messages and picture messages. It works by intercepting calls on Burner and routing them to your phone, so no one can see your real number.

You can make calls, text messages and manage contacts from within the app, and treat it as a long-term second phone number for your company or external projects. You can create a one-time phone number on Craigslist for appointments, sales, delivery, shopping or selling items.

Integration with Dropbox, Google Drive and Slack allows you to archive messages and voicemails, or communicate with your team.

You can create multiple phone numbers, keep them for time, or record them at any time. Share your Burner with anyone, while keeping your new number secret to send text messages anonymously.

Burner can be downloaded for free, and provides 7 days free sample number. Other phone numbers can be obtained through in-app purchases or subscriptions.

You can use Burner through a prepaid plan or subscription, and you can change your plan at any time in the United States or Canada, except Puerto Rico. The burner is only free during the trial period, and the area code availability will vary.


Assuming you are looking for a fully functional business phone system other than personal phone numbers, please consider 2ndLine operating in the United States and Canada.

The app allows you to make calls and send messages from separate numbers on devices owned by you and your employees via Wi-Fi or an existing cellular network.

You can choose not to restrict text and picture messages, local phone numbers for phone calls and cheap international calls.

It provides decorations such as emoji, stickers and GIF. You will also get voice mail transcription, caller ID, call forwarding, customizable text and ringtones, quick replies, in addition, you can also add your own signature to each text.

The password function allows you to keep all calls and information confidential.


Stay anonymous, keep the conversation private, and delete the number immediately after completing the call-Hushed not only provides you with a second smart phone number, it also provides local numbers for more than 60 countries around the world, including the United States, Canada, Britain, Australia, Spain, Mexico and Brazil.

This additional phone number can be used for private calls and text messages, allowing you to disguise the caller ID, and then burn it after using these numbers.

The app has full picture messaging (MMS), text (SMS) and call functions, not to mention unlimited texting and phone calls in North America. Each number comes with call routing, call forwarding, automatic reply messages and custom voice mail greetings.

You can access your account on any device connected to Wi-Fi or data, and you can even use your tablet as a phone. The app provides flexible prepaid and pay-as-you-go plans for 7, 30, 90 or 365 days, and you can expand, delete or recharge at any time.

You can try the app for free for a three-day trial in the United States or Canada. The trial includes up to 20 minutes of free phone calls and text messages, or up to 20 text messages without verification or contract signing.

In some countries, SMS and MMS can be used to make local calls on all Hushed numbers. In some 30-day international plans, international calls and SMS can be made.


Numflix is ​​suitable for people who need to communicate but do not want to disclose their private information to suppliers and strangers. The app provides you with a real phone number, and its functions include voice calls, text, voice mail, reverse caller ID lookup and call history.

The application can create numbers on demand with just a few taps. The application can easily use the familiar interface and use the infrastructure of top operators. For now, you can only create numbers using the U.S. and Canada country codes.

The company will support more country codes in the future. In addition to on-demand packages, the app also offers monthly subscription options with substantial discounts, with prices ranging from US$2 to US$5 per month.