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Best Second Phone Number App in 2024



Best second phone number app

Are you tired of juggling personal and professional calls on the same device?

If you’re struggling to keep your personal and professional calls separate, step into the future of connectivity with the best second phone number apps.

You can now bid farewell to worries about privacy and the chaos of managing multiple numbers, as a second phone number can provide you with the convenience of handling them.

In this article, we’ll discuss what a second phone number app is and the 10 best apps that you must consider using if you want a second phone number.


  • The second phone number app is an application that provides you with an alternative phone number.
  • Some benefits of using a second phone number app are privacy, professionalism, call screening, cost savings, and flexibility.
  • When choosing a second phone number app, you must consider features, pricing, compatibility, availability, and customer support.

What Is The Second Phone Number App?

A second phone number app is an application that enables you to have an alternative number for your main one. You can either use it for personal reasons or business purposes. 

This app typically comes with features like voicemail service, text messaging, and call forwarding, which can be used to send or receive calls on another line. Users maintain their privacy and keep their professional interactions separate from their personal by using second phone number applications.

10 Best Second Phone Number App

Here’s a table that includes the 10 best second phone number apps you can choose.

AppsPricingFeaturesAvailable on 
KrispCallStarting from $15Unified callbox, call forwarding, shared phone number, call recordingiOS, Android, and Web
Google VoiceStarting from $10Multi-level auto attendant, Unlimited text messaging in the US, Voicemail transcription, Google Meet IntegrationiOS, Android, and Web
SidelineStarting from $14.99Custom Caller ID, Auto-reply to calls and texts, Auto-attendant, Group Messaging, SMS + MMS MessagingiOS and Android
HushedStarting from $2.99Anonymous Calling, Custom voicemail greetings, Auto-reply messages, Call forwarding, Call routingiOS and Android
JustCallStarting from $19AI Call analytics, Offline Calls, Call transcription, Auto response using SMS bots, Website click-to-call buttoniOS, Android, and Web
BurnerStarting from $4.99Spam detection, Unlimited calls and texts, Change Background Color, Delete or switch numbers easily, Custom Voicemail GreetingiOS and Android
TextfreeStarting from $9.99Custom Phone Number, Unlimited Free Texting, Unlimited Free Calling, Voicemail to text, Customizable voicemail greetingsiOS and Android
DingtoneWorks on creditFree Phone Number, International Calling, Voicemail, Call Blocking, call forwardingiOS and Android
Line2Starting from $15.99Call Screening, VoiceMail transcription, Caller ID, Call Forwarding, Call BlockingiOS and Android
Cloud SIMVary according to country Free calls and chats, Low-cost SMS to any phone, Get another business line without an extra device, Customized voicemail on each profile, Customized each cloud SIM profileiOS and Android

1. KrispCall

As one of the best second phone number apps on the market, KrispCall offers multiple phone numbers without buying another phone or SIM card. You can register, choose from a set of phone numbers, and link them to any device you already use. 

KrispCall second phone number app

There are various options, such as personalized voicemail, call screening, call forwarding, call routing, DND, etc. When everything is set up correctly, any device linked with KrispCall other lines will allow you to make and receive calls.

KrispCall features

  • Call Forwarding: KrispCall allows you to forward any call on your second number. This makes it possible to receive calls even if you’re not holding your phone, as you can redirect calls to other devices.
  • Shared Phone Number: A single telephone number or VoIP number can be used by multiple users with access to it. This feature has greatly helped business operators. 
  • Voicemail: KrispCall voicemail features enable you to leave a recorded message even if the individual you’re trying to contact is unavailable.
  • Call Recording: It allows individuals or businesses to record telephone conversations for various purposes such as quality assurance, dispute resolution, documentation, etc.
  • Customizable settings: With the KrispCall second number, you can customize settings or functions for your number, such as voicemail, call routing, call forwarding, call blocking, voicemail to email, etc.

KrispCall Pros & Cons

✔️ Pros 

  • Multiple phone numbers from 100+ countries
  • Unified Callbox, where you get all the calling features and functions in one dashboard
  • Mobile number, local number, toll-free number, and vanity number are available 
  • Easy integration with CRM systems and other business tools
  • Number sharing
  • Customizable call features like call forwarding, call blocking, DND mode, etc.


  • Limited availability 
  • Developer support only on enterprise plan

KrispCall pricing

PlanPricing (month/user)Pricing (yearly/user)
Standard $40$32
EnterpriseContact the sales team to get enterprise pricing.

How To Get A Second Phone Number From Krispcall?

KrispCall provides a simple way to obtain second phone numbers. You only need to sign up, select the country, city, and phone number type, then select the number and make the payment. Once your second phone number is activated, you can immediately make and receive calls online.

Download KrispCall from

You can download KrispCall from:

2. Google Voice 

Google Workspace has a well-liked second phone number app called Google Voice for iPhones, Androids, and the web. However, it has minimal features for business phone systems, including the need for more tools such as call recording or toll-free numbers of other entities provide.

Google voice app

Google Voice has a web interface and is very user-friendly. It can be configured to ring several devices simultaneously, ensuring you never miss a call. You can send texts, listen to voice messages, and place calls via the Internet. You can even filter through voicemails and messages with Google Voice’s built-in spam filter.

Google Voice features

  • 24×7 support
  • Multi-level auto attendant
  • Unlimited text messaging in the US
  • Voicemail transcription
  • Google Meet Integration

Google Voice Pros & Cons

✔️ Pros

  • Integrates with Google Meet and calendar
  • Free calls to US
  • Mobile or web access


  • Integrations only with Google service
  • It doesn’t support toll-free numbers
  • No auto-replies

Google Voice pricing

PlanPricing (month/user)Pricing (yearly/user)
Standard $20$12
EnterpriseContact Sales Team

Download Google Voice from:

3. Sideline

Sideline allows you to access your carrier’s message and voice calling minutes and provides an additional telephone line. Once you have a signal on your phone, you can use your minutes by dialing out directly from an additional telephone line. 

Sideline app

This new number allows calling, texting, and even voicemail. Also, the app works with your current network operator ensures high-quality calls, and offers you features like web texting, auto-reply, spam filtering, custom caller ID, and more.

Sideline features

  • Custom Caller ID
  • Auto-reply to calls and texts
  • Auto-attendant
  • Group Messaging
  • SMS + MMS Messaging

Sideline Pros and Cons

✔️ Pros

  • Spam detection
  • Easy number porting
  • Offers 7-day free trial


  • CRM integrations are not available
  • No call recording options
  • A toll-free number is not available

Sideline Pricing

Sideline account$14.99$129.99

Download Sideline from 

4. Hushed

Hushed is a service that supports anonymity. Importantly, it issues separate phone numbers for calling and texting, which can be quickly deleted anytime. It provides private phone numbers for over 300 US, Canada, and UK area codes.

hushed app

Many subscription and payment options are available, from uncontrolled to per-minute or text-based subscriptions. A per-minute or text plan may raise subscription costs. It prioritizes a very high level of privacy protection for its clients.

Hushed features

  • Anonymous Calling
  • Custom voicemail greetings
  • Auto-reply messages
  • Call forwarding
  • Call routing

Hushed Pros and Cons

✔️ Pros

  • Add multiple numbers to a single account
  • Customization options
  • 300+ area codes in the US, Canada, and the UK


  • No free trial
  • Integrates with Slack and Dropbox only
  • Have to pay extra for international calls

Hushed Pricing

$2.99/ per month$4.99/ per month$6.99/ per month

Download Hushed from:

You can download Hushed from:

5. JustCall

With its automation, analytics, and integrations, JustCall empowers teams that deal directly with clients. Besides, it integrates natively into over 100 CRM, Helpdesk, and other relevant business technologies. 

justcall app

Moreover, the use of high-level infrastructure guarantees high-quality voice calls.  It is, therefore, a service suitable for both the sales and marketing teams in the support and sales departments, as recording calls and ring groups are part of the basic plan.

JustCall features

  • AI Call analytics
  • Offline Calls
  • Call transcription
  • Auto response using SMS bots
  • Website click-to-call button

JustCall Pros & Cons

✔️ Pros

  • A 14-day free trial is available 
  • Phone numbers from 70+ countries
  • Integrates with 100+ CRMs


  • Charges by minute for outbound calls
  • Many user reviews report uncertain call quality
  • Toll-free numbers require a plan upgrade

JustCall pricing

$19/ per month/ annually$29/ per month/ annually$49/ per month/ annuallyContact the support team
1 user min2 users min2 user min10 users min

Download JustCall from 

You can download JustCall from:

6. Burner

Burner offers a second phone number app mainly designed for those needing privacy for both iOS and Android. This application also includes features such as spam-blocking technology and do-not-disturb settings, which can be very helpful in certain situations. 

burner second phone number app

If you want to communicate with someone who does not know your phone number, this app would be appropriate as switching or deleting alternate numbers is easy. It maintains a high level of privacy for the user.

Burner features

  • Spam detection
  • Unlimited call and texts
  • Change Background Color
  • Delete or switch numbers easily
  • Custom Voicemail Greeting

Burner Pros & Cons

✔️ Pros

  • Get up to 200 phone numbers at once
  • Unlimited calls and texts in the US and Canada
  • Maintain anonymity by deleting used numbers


  • Lack of integration 
  • Not suitable for business use
  • No call recording facility

Burner pricing


Download Burner from 

You can download Burner from:

7. Textfree

Textfree is a free texting app for desktop, mobile devices, and iOS platforms. In addition to sending unlimited texts, the app lets users make WiFi calls, choose a second phone number for free, and edit their voicemail greetings. 

textfree app

Text Free has a condition, though, so it’s not entirely free. The condition is, if you don’t use it regularly, you might lose the phone number given to you. You lose that number if you go without using it for more than thirty days. To keep the number operational, one has to subscribe by paying.

Textfree features

  • Custom Phone Number
  • Unlimited Free Texting
  • Unlimited Free Calling
  • Voicemail to text
  • Customizable voicemail greetings

Textfree pros & cons

✔️ Pros

  • Provides real phone number
  • Free texts and calling
  • Free of ads


  • Risk of getting account deactivated if you don’t use it in 30 days
  • One phone number per account

Textfree pricing

Textfree Plus$9.99$69.99

Download Textfree from 

You can download Textfree from:

8. Dingtone

Dingtone is another application that allows free texting and calling. It offers corporate phone services, a free phone number for WIFI calling, and an app that lets you have unlimited calls or texts to any number. It enables cost-effective international calling across the world.

dingtone app

It’s interesting, even though there are some restrictions. Dingtone has designed its app as a game with credits for currency instead of advertising. You can buy those credits if you want to; if not, there are multiple ways to acquire them, such as simply checking in with the app daily or playing games.

Dingtone features

  • Free Phone Number
  • International Calling
  • Voicemail 
  • Call Blocking
  • Call forwarding

Dingtone Pros & Cons

✔️ Pros 

  • Free calls and text
  • No monthly fees, no contracts
  • International phone numbers for many countries


  • App credits are required to call or text
  • The free version is ad-supported 

Dingtone pricing

US0.9 credit/min
India2.0 credit/min
UK1.0 credit/min
Italy0.9 credit/min

Download Dingtone from 

You can download Dingtone from:

9. Line2

Line2 is an additional phone number app that lets you make unlimited calls and texts in the US using local or toll-free numbers. It also has desktop and smartphone apps. Meanwhile, it has no number-sharing options, and one cannot perform international calls.

Line2 second phone number app

It is a cloud-based communications solution that offers a simple second line with unrestricted phone calls, texting, and customizable functions. It is cheap, expandable, and can be accessed from any point through a phone application and web browser. 

Line2 features

  • Call Screening
  • VoiceMail transcription
  • Caller ID
  • Call Forwarding
  • Call Blocking

Line2 Pros and Cons

✔️ Pros

  • Privacy
  • Cost-effective
  • Easy-Setup


  • Limited advanced Features
  • Mixed Reviews

Line2 Pricing

PlanPricing (month/user)Pricing (yearly/user)
Basic $15.99 per month$13.75 per month

Download Line2 from 

You can download Line2 from:

10. Cloud SIM

The Cloud SIM smartphone app enables users to link four more phone numbers to their gadgets. You get charged per minute or text if you’re calling or texting someone who’s not using the Cloud SIM app.

cloud SIM app

Cloud SIM provides custom profiles, privacy, and cheaper calls. Calls and messages between its users are free, while callers and SMS messages between non-users are significantly cheap. It’s also cheaper to call or text even if the individual is not a Cloud SIM user. 

Cloud SIM features

  • Free calls and chats
  • Low costs SMS to any phone
  • Get another business line without an extra device
  • Customized voicemail on each profile
  • Customized each cloud SIM profile

Cloud SIM Pros and Cons

✔️ Pros 

  • Flexibility
  • Global Connectivity
  • Potential Cost Saving


  • Reliance on Internet Connection
  • Security Concerns
  • Limited Availablity

Cloud SIM Pricing

Countries/DeviceTelephoneMobile PhoneMessaging
USA$1.2 per min$1.2 per min$5.0 per message
UK$1.8 per min$3.6 per min$7.0 per message
Canada$0.9 per min$0.9 per min$5.0 per message

Download Cloud SIM from

You can download Cloud SIM from:

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Benefits Of Getting A Second Phone Number App

Let’s look at the major benefits of getting a second phone number app:

  • Privacy: A secondary phone number app can help maintain personal and business communications. Having another number can help keep conversations private when you don’t want to share your personal number.
  • Professionalism: A separate line and secondary phone number application for freelancers and business owners could help establish your professional demeanor and keep separate personal and professional contacts.
  • Flexibility: A second phone number makes carrying a single smartphone with many contacts possible. This is beneficial for people who travel a lot or have multiple responsibilities because they do not have to carry around many phones or SIM cards.
  • Call Screening: Most second phone number applications have call screening functions, which allow you to filter out unwanted calls and avoid conversations with spam callers.
  • Cost-Savings: Using a second phone number app is a more affordable option than buying a second SIM card or phone line. In the long term, it usually provides pay-as-you-go alternatives or reasonable subscription plans.

Factors To Consider Before Choosing The Right Second Phone Number App

Some of the major factors that you must consider before choosing the right second phone number app are:

  • Features: Compare the features that various providers have to offer. Consider the features relevant to your use case, such as message forwarding, voicemail, call screening, call forwarding, and more.
  • Pricing: Investigate the pricing schedules of different apps to ascertain whether they offer a free version or a trial period and to find out how much subscription plans or pay-as-you-go options cost. Remember app worthiness and your budget.
  • Reliability: Seek applications with a solid reputation for dependability and call quality. Examine customer reviews and the app’s uptime and performance history.
  • Compatibility: Check if the app is compatible with the operating system (Android or iOS) on your mobile device. Verify whether it works with the functionality you require on the device in question.
  • Number Availability: Check if the app offers the numbers you desire for that particular area code or location. Certain restrictions apply based on the location of these apps.
  • Customer support: If you have questions or encounter difficulties, check whether the app has reliable customer service. Look for tools such as FAQs, email support, or live chat.

Safeguard Your Personal Number: Get A Second Phone Number With Krispcall

Improve your communication experience with KrispCall by using the second phone number. Those who wish to simplify personal and business communications can easily get an additional telephone number. Having a second telephone number only for yourself has got to be the most convenient and stress-free thing.

KrispCall offers safe and genuine second phone numbers from over 100 countries. It provides quick installation, and you can opt out whenever you want.

In addition, you can access the second phone number on any device or location and take complete advantage of its VoIP features, such as voicemail, IVR, call listening, call transfer, etc.

Final Thoughts

Choosing the best second phone number app in 2024 necessitates exploring many relevant functionalities. Before settling on any application, you must consider features, dependability, usability, privacy, pricing, international calling capabilities, platform compatibility, customer service, and reputation. 

Furthermore, you can find such an application by looking for factors that enhance smoothness during conversation while maintaining private information. If you’re looking to use a second phone number, you must consider an app that offers numerous features, has an excellent user interface, and protects your private information. It must ensure privacy if you want to keep your personal calls or interactions private or separate from business or professional ones.


Do second phone number apps work?

Yes, second phone number apps work by routing your calls and texts online rather than a traditional cellular network.

Are second phone number apps safe?

Second phone number apps are safe, ensuring privacy and ease of use. However, you must use reputable ones with suitable security methods, provide limited personal information, and avoid using them for sensitive communication.

Why use a second phone number?

You can use a second phone number for various reasons, such as keeping personal phone numbers private, avoiding spam, and being cost-effective.

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Author Image

Dinesh Silwal

Dinesh Silwal is the Co-Founder and Co-CEO of KrispCall. For the past few years, he has been advancing and innovating in the cloud telephony industry, using AI to enhance and improve telephony solutions, and driving KrispCall to the forefront of the field.

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