Top 20 Android Apps for VoIP and SIP Calls in 2024

  • Last Updated: 08 Feb 24
  • 20 min read
Best Android Apps for VoIP & SIP Calls

Are you looking for the Best Android Apps for VoIP and SIP Calls? Finally, we reviewed the 20 best android apps for VoIP & SIP calls in 2024 that will allow you to transmit voice over the internet.

Before we get into the top VoIP and SIP applications for Android, it’s important to note that Google has a direct solution for this. You can use Wi-Fi to set up SIP and make phone calls through WIFI Calling.

Based on the following features, we selected the top Android applications for VoIP and SIP calls:

  • Support audio & video calling effectively
  • Free of cost & affordable price
  • Supports multimedia file sharing
  • SMS, chats, & voice messages
  • International calls
  • Unlimited free calls

Top 18 Android Apps for VoIP and SIP Calls [Free & Paid Included]

  1. Facebook Messenger: More than 5 Billion Downloads
  2. WhatsApp: Good for Business
  3. Viber: Support Privacy
  4. Skype: Support Cross-Platform
  5. IMO
  6. Kakao Talk: Open Chat
  7. Signal Private Messenger: Best for Privacy Protection
  8. 3CX: Business Discussion
  9. KrispCall: Unified Callbox with 100+ Countries’ Phone Numbers
  10. GrooVe IP: Free Credits
  11. Zoiper IAX VoIP & SIP Softphone: More focus on Audio Call
  12. Discord: Gaming Platform
  13. magicApp: Not Free
  14. RingCentral: Long Story in VoIP
  15. Vonage Busines Communication
  16. Nextiva
  18. Google Voice

What is VoIP?

The term “VoIP (Voice over Internet Protocol)” is the procedure of transmitting audio (voice) and multimedia data via the internet service.

Voice over IP technology transforms voice commands used in traditional phone calls into digital signals that travel over the Internet.

Costs are practically free when calls are made through the internet wherever the internet service is available.

VoIP is also known as IP Telephony, since it uses Internet Protocol communication for voice calls, voicemails, etc.

What is SIP?

The term “SIP (Session Initiation Protocol)” is a protocol that helps you to move your available PBX phone system to the cloud. Voice over Internet Protocol (VoIP) is possible with s.

The technique of broadcasting voice calls through a SIP trunk or a SIP route is known as SIP Calls. VoIP is being used in SIP calling to transport analog call traffic through the internet service.

Read Also: SIP Vs VoIP

How do VoIP Apps Work?

VoIP apps enable users to make and receive voice calls, send and receive messages, and perform other functions over the Internet. What’s even better is that it provides its services at no cost.

We’re steadily moving away from traditional telephone calls and moving toward VoIP and SIP. Considering that, we have analyzed the top free and paid android apps for VoIP and SIP Calls which help you in seamless communication.

Benefits of using VOIP Calls for Business & Personal Communication

The benefits of using  VOIP phone services are as given below:

  • Increased accessibility and availability
  • Flexible call rates
  • Better use of bandwidth
  • Effective and unified communication
  • Higher scalability
  • Cost-saving and efficiency
  • Advance features of small and large teams
  • Completely portability

Top 10 Free  Android Apps for VoIP and SIP Calls

We’re eventually replacing traditional phone conversations in favor of VoIP and SIP. Here are the 10 best free androids VoIP and SIP apps are listed below:

1. Facebook Messenger: More than 5 Billion Downloads

Price: Free

Facebook Messenger is a better than average application in cases of VoIP. Since everyone is engaged more with Facebook nowadays, it’s been easy to communicate with your friends & relatives using Facebook Messenger.

Facebook Messenger allows you to send voicemails, SMS, video calling, audio calling & money transfer.

messenger homepage

You can easily install Facebook Messenger on your devices from Google Play Stores. Then, you need to connect your Facebook accounts with Messenger. Afterward, you can contact any of your Facebook friends.

Messenger is a cost-free application but you can only contact other Facebook Messenger users using the Internet.

More than 5 Billion people have already downloaded Messenger from Google Play Stores. This app is quite popular for VoIP.

Key Features of Facebook Messenger:

  • Text Messaging
  • Group Chat & Group Calls
  • Location Sharing
  • Audio & Video Calls
  • Sharing Videos & Images
  • Sending Voice Messages
  • Free of Cost
  • Transfer Money

Facebook is the best application for personal use as well as business purpose. You can easily connect with your Facebook friends and relatives using Facebook Messenger.

You can even make pages on Facebook for your business & deal with your customer through Facebook Messenger.

You may like: 15 reasons why your text message didn’t get delivered

2. WhatsApp: Good for Business

Price: Free

WhatsApp is easier to use than other VoIP and SIP applications even though this is a newcomer in the SIP or VoIP market.

You can simply download WhatsApp from Google Play Stores on your devices in terms of SMS, video calling, audio calling & voice mails. You can attach Microsoft files with messages as well.

whatsapp homepage

This application is free of cost to download & free to call other WhatsApp users as much as you can using Internet Service. You have to open a WhatsApp account with a mobile number.

To manage business-related concerns, WhatsApp can be linked to your Facebook page or Instagram business account.

WhatsApp is one of the most popular messaging apps available today, with such a close rivalry with Google and Facebook in terms of active users. It is also downloaded more than 5 billion times from Google Play Stores.

Key Features:

  • Location Share
  • Video & Audio calls
  • Texting Message
  • Unlimited free calls
  • No International charges
  • Sharing videos, audio & images
  • Attach File

Whatsapp uses your phone number to create an account. You can call & message your friends & relatives from your contact list or if you like you can add people to the contact list.

So, it is best for personal use. You can use & mention your Whatsapp number on business sites, Facebook pages, ads, etc as well. Whatsapp is great for business purposes as well.

3. Viber: Support Privacy

Price: Free

Viber has been making SIP and VoIP calls on Android for years and is still one of the top options for making web-based voice calls.

Viber has a fully-fledged chat function, as well as audio and video calls. There are also public chats, emojis, file attachments, and other features.

viber freemium, cross-platform instant messaging, VoIP, and videotelephony app

Viber is a completely free application, you can simply download it from Google Play Stores.

It’s simple to use and works on a variety of platforms. The best part about Viber is the variety of online stickers available.

More than 1 billion downloads of Viber have been made from the Google Play Store.

Key Features:

  • Laptop or other devices are properly synchronized
  • Group Chats & Conversation
  • Safe Chats
  • Video & Audio Calls
  • Colorful & Vibrant Sticker
  • Sharing audio, video, images & files

Like WhatsApp, Viber uses our phone number to create an account. It is probably known for its design, stickers, etc. It is best for personal & business purposes as well. Since you can easily communicate with people from your contact list.

4. Skype: Support Cross-Platform

Price: Free

Skype is probably one of the most famous VOIP applications. It has a huge number of users, has direct Microsoft and Facebook support, and is relatively simple to use.

Any person who has a Skype account can simply text, contact, audio, or video call with you. It charges a little cost for landline calls.


This one works on both PCs and mobile devices, and it’s cross-platform.

Up to 25 people can participate in voice and video calls, and up to 300 people can participate in group chatting.

You can simply download it from Google Play Stores. More than 1 Billion times Skype has been downloaded.

Key Features:

  • Video Calling
  • Audio Calling
  • SMS
  • Chat
  • Support Cross-Platform

Skype is one of the best options for VoIP since it is popular amongst the users & easy to use. You can contact anyone who has a Skype account. This app is the best option for personal contact.

5. IMO

IMO is a simple and free app that allows you to communicate internationally. Messages can be sent internationally without incurring an additional fee, so you can stay in touch with your loved ones.

Furthermore, many different types of networks can be used (e.g. 2G, 3G, 4G, and Wi-Fi).

Mobile or landline numbers can be called when making international calls.

In addition to the chat function, you are able to send voice messages, videos, and photos, as well as share documents in different formats. Not only can you view everything from your mobile device, but also from an Android tablet or a PC.

All your contacts are available for viewing just by entering your phone number. Avatars and music themes can also be added to your profile.


  • Free of cost

6. Kakao Talk: Open Chat

Price: Free

This program is marketed as a chatting service, similar to Google Hangouts, but now it also has a call option. Kakao Talk encouraged users in lively chats with individuals as well as in group chats.

It really has grown in popularity over the years as a result of its good quality service, and it now has 150+ million members.


Kakao Talk features Android Wear and certain voice filters if you wish to make the conversation even more entertaining. It also enables users to forward & receive conversations along with multimedia files like images, videos, music & so on.

Key Features:

  • Open Chat- search other users to chat on the basis of your interest
  • Kakao Calendar- you can see all of the events and anniversaries that are happening in your
  • chatroom
  • Voice calling
  • Video calling & Live talk
  • Kakao View- explore and gather different view editor material that suits your preferences

Kakao Talk is another best option for VoIP & SIP calls that enables you for one-on-one or group chats. It supports sending multimedia files as well.

You can even search other users for a conversation on the basis of your interest. Kakao Talks is available for free at any time, anywhere, and in real-time.

7. Signal Private Messenger: Best for Privacy Protection

Price: Free

Signal Private Messenger is the greatest VoIP application for people who really care about their privacy protection. This is a new messaging platform that promises to protect your privacy beyond all other issues.

Signal Private Messenger

You can chat and talk much more than you wish with any other Signal member for free. It doesn’t come with a large number of functions & features. But it provides superior security, encryption, and privacy options. Perhaps it syncs with your actual mobile number and contacts list.

Furthermore, this app’s call quality is rather outstanding, and you can have perfect discussions with your friends & relatives. This app is likewise fully free to use and has no restrictions.

Key Features:

  • Superior security, encryption, & privacy features
  • FREE of cost
  • Chats
  • Voice Calling
  • Video Calling

Signal Private Messenger is an open-source project with extremely strong security protocols, and if you’re looking for something really secure, this might be a good option. It is free of cost as well.

8. 3CX: Business Discussion

Price: Free

3CX is a SIP application that is highly recommended for business users. 3CX enables you to perform calls on your Android mobile from anywhere. You don’t have to be afraid because the app preserves the battery and goes into standby mode when the application is not in use.

3cx homepage

You should also keep in mind that this software does not operate with older versions; it requires the 3CX PBX Server 15. In addition, in order to set up the PBX administrator, you must first install Google Push.

Key Features:

  • Calling from office extension
  • Receive multiple calls at the same time
  • Business Discussion
  • Transfer/Hold Calls
  • Conference Calls
  • One number concept

3CX is again the best option for making & receiving calls. It even supports receiving multiple calls at the same time. This app seems to be a great app for business purposes. This application is free of cost.

You Might Be Interested In Top 3CX Alternatives & Competitors

Top 10 Android Apps for VoIP and SIP Calls (Paid)

If you are looking for reliable and great customer support android apps for VoIP & SIP Calls then you can choose from the below list.

9. KrispCall: Unified Callbox with 100+ Countries’ Phone Numbers

KrispCall is a Virtual Cloud Phone System for your Business. Providing a smooth, robust and convenient way to manage your telephone system. 

The application is more than just a phone system, offering tens of thousands of virtual phone numbers from more than 100 countries, and Click to Call widgets.

krispcall homepage


KrispCall is for modern Business; receive calls from your website, and regular phones, all in one place. 

 Features of  krispcall

  • call recording
  •  Interactive voice response (IVR)
  • Interactive voice response (IVR)
  •  Automatic call distribution
  • Call transfer
  • Customized phone greeting
  • call routing


  • Essential: $15 per month /user (Recommended for small businesses)
  • Standard:   $ 40 per month /user( Recommended for mid-size business )

10. GrooVe IP: Free Credits

Price: Free / 6.99$

GrooVe IP has been in the market for a while, and the makers appear to understand absolutely what the consumers want. It includes a separate dialer for making calls. The call quality over GrooVe IP is sufficient as long as your internet connection remains stable.

groove ip voip calls & text

It seems to be identical to Skype in that you can message and call other users as much as you like as long as you have the GrooVe IP application. Unfortunately, If you wish to call a telephone number, you must purchase or earn credits. GrooVe IP affords you certain free credits per month, although Skype does not.

GrooVoIp is a free app containing ads, however, the ad-free edition can be purchased for $6.99.

Key Features:

  • Acceptable call quality till you get a stable internet connection
  • FREE of cost with ads, but need to buy an ad-free version for $6.99
  • Monthly, it offers you certain free credits
  • Provides a separate dialer for making calls.
  • Calls & text messages

GrooVe IP members can call or text one another for free, no matter where they are. You can use the free credits you receive per month to call or text other numbers in the United States and Canada.

If your free credits run out, you can get more through watching videos or completing tasks, or you can buy credits with a Paypal or credit card.

11. Zoiper IAX VoIP & SIP Softphone: More focus on Audio Call

Price: Free / $8.49 + in-app purchases

In comparison to other VoIP and SIP apps, Zoiper is the most distinctive. It is still one of the few SIP and VoIP apps that are dedicated solely to audio calls.

Bluetooth connectivity, the capacity to make effective calls often over poor Internet access, IAX assistance, and assistance for a number of other protocols are all included in this software.


If you only need phone calls, this is one of your finest options; but, if you upgrade to gold, you’ll receive video call capability, better audio, and call sharing.

Although this software is old, its user interface and layout are periodically updated. It is free of cost to use, but there are in-app purchases available as well.

Key Features:

  • Bluetooth support
  • Audio & Video Calling
  • Support MultiTasking
  • Multiprotocol with SIP & IAX assistance
  • Theme Customization

This is application-focused more on an audio call, however, it also supports video calls if we upgrade it to gold. It supports Bluetooth connectivity & IAX assistance.

12. Discord: Gaming Platform

Price: Free / $4.99 per month

Discord is a gaming platform, and the Discord app enables you to link with other gamers all over the globe. You can, however, discover or develop servers for any purpose. You can quickly find servers for gaming, anime, lifestyle, and a variety of other categories using this software.

discord homepage

Users can make direct calls to all other users or participate in a group chat on the server. Discord is a fantastic platform for online chatting.

The app is completely free to download and use. There are several optional upgrades that you can purchase.

Key Features:

  • The best option for gaming platforms is to link with other gamers
  • Direct calls & messages to other users on the server
  • Free to use but certain options need to purchase
  • Find and create servers for any reasons
  • Easily find servers of different categories like; lifestyles, anime, etc

Discord app is famous among gamers for connecting with each other. They can directly call & message other users on the server. You can even create or find servers of different categories. This app is free to use but some extra features need to be purchased to access it.

13. MagicApp: Not Free

Price: $9.99

magicApp is another well-known Android VoIP and SIP application. It employs a real phone number.

Cross-platform functionality, landline calls, and SMS assistance are all included in the application.


The excellent service offered by magicApp is not available for free; yearly membership fees cost $9.99. You’ll get unlimited calls to the United States and Canada, as well as send unlimited texts to any US mobile number.

Key Features:

  • Make a call to an Android from a magicJack number
  • Compatible with Wi-Fi
  • Send a text message to any phone number in the United States
  • Unlimited calls to the United States, Canada, and other countries across the world
  • Buy Subscription

magicApp is a paid app for VoIP which includes your real phone number. It provides excellent services but you have to buy a subscription to access those features.

14. RingCentral

RingCentral connects people and businesses today while transforming businesses tomorrow by combining unified communications and a contact center platform.

ringcentral homepage

Our aim is to provide global enterprise cloud communications and collaboration solutions through video conferencing and contact center solutions.

   Feautres of  RingCentral

  • Greetings and voicemail.
  • Video Conferencing.
  • Unlimited Business SMS.
  • Local and toll-free numbers.
  • Online Meetings.
  • Interactive voice response with multiple levels.
  • Mobile & Desktop Apps (iOS and Android)
  • Internet Fax.


  • Essential : $19.99 per user/ month
  • Standard : $27.99 per user/ month
  • Premium : $34.99 per user/ month
  • Ultimate : $49.99 per user/ month

15. Vonage business communication

Vonage Business Communications (VBC) boasts an uptime guarantee of 99.99%, so it is equally as reliable as RingCentral and Nextiva’s service level agreements (SLAs). 


Companies that operate contact centers or have agents reaching out to partners and colleagues around the clock must consider this factor carefully.

The popularity of VBC is also due to its compatibility with iOS devices. You can utilize Siri to manage Vonage calls when using the Vonage app.

Features of VBC

  • Competitive recording options
  • Add-on features
  • Siri integration


  • Mobile plan: $19.99 per month
  • Premium plan: $29.99 per month
  • Advance plan: $39.99 per month

16. Nextiva

If you want high-quality VoIP calling capabilities and unified communication capabilities, Nextiva is a great choice. Video calls, joining conference rooms, and inviting team members to meetings are all available. 

nextiva homepage

Among the other features of the app is the option to “Call from Phone,” which lets you place a call from the device of your choice.

Mobile screen sharing is also available on Nextiva. You can use this feature to share experiences, such as apps or mobile web pages, that will give fellow callers an understanding of how those things will appear on mobile devices. 

  Features of Nextiva

  • Call pop
  • Mobile screen share
  • High attendee video calling


  • Essential plan :  $21.95 per user/month
  • Professional plan :  $25.95 per user/month
  • Enterprise  plan :  $35.95 per user/month
  • Ultimate plan :  $65.95 per user/month


 There are a variety of features offered by the app that can be used by businesses to replace IP phones with software-based dialing.

In Communicator’s Windows version, you can access all features through the “More call options” dropdown menu. The Mac desktop version has a few additional on-screen features. voip business phone service

The ease of use of this softphone app makes it stand out. As with Nextiva, makes the experience as intuitive as possible. The use of hotkeys can access many dialing options, allowing almost all of the dialing to be done without using a mouse.

    Features of

  • Follow me 
  • Native integrations
  • HD voice


  • Basic Users plan: $10.39 per user/month
  • Plus Users plan: $15.99  per user/month
  • Pro Users plan: $ 23.99 per user/month

18. Google voice

Using Google Voice is a convenient and simple way to make VoIP calls, especially if you are using the Google Workplace application ecosystem. 

google voice for business

Google Voice is very inexpensive; in fact, the service is free for individuals to use. Since this application is usually pre-installed, you don’t have to download it and can use it directly within the browser.

Compared to companies like RingCentral or Nextiva, which start at almost twice the monthly cost of professional users, the pricing for business users starts at $10 per user, per month.

   Features of  Google voice

  • Call recording 
  • Free usage
  • Desk phone support


  • Starter plan:  $10 per user/month
  • standard plan: $20 per user/month
  • Premier  plan: $30 per user/month

Things To Consider While Using VoIP Mobile App For Business Communication

Some  important tips you need to consider before choosing a business VoIP service are

  • Figure out the pricing and plans 
  • Unified communication
  • Third-party integration features
  • Mobile app solutions
  • 24×7 support and Data backup
  • Seamless call management
  • Confirm the required VoIP type
  • Do not skimp on security
  • Onboarding & care
  • Check your service provider’s ratings and reviews.


The android application for VoIP & SIP calls is really important to exchange common news, views & ideas with others on a daily basis.

Those applications help us to communicate with friends & relatives anytime we want. All of the VoIP & SIP calling apps required an internet connection to access.

We can easily send voice messages, SMS, video calling, audio calling, etc using those VoIP & SIP call apps.

Among all the apps, Facebook Messenger is best for personal use because almost every person is engaged with Facebook nowadays. And Facebook Messenger helps us to communicate with our Facebook friends super easily.

WhatsApp & Viber is also simple to use but requires a mobile number to create an account. And both WhatsApp & Viber are free of cost like Messenger.

Both WhatsApp & Viber are considered the best VoIP applications to deal & communicate with customers for online business. And both of the apps can be used for personal purposes as well. 


🤔 Do VOIP apps need a VPN to run?

Most individuals would like to connect a VoIP service with a VPN for privacy protection reasons, but these aren’t the only ones. Several nations use a firewall to restrict VoIP services. Those VoIP services are unblocked by a VPN.

📶 What are some VoIP apps for Android that work on 2G, and 3G networks?

Some VoIP apps for Android that work on 2G, and 3G networks are Facebook Messenger, WhatsApp, and Viber.

🌎 Which VoIP app is good for making international calls?

Some VoIP app that is good for making international calls are: Whatsapp, Google Hangout, Skype & Facebook Messenger

📞 Are international calls free on WhatsApp?

Yes, of course, international calls are totally free on WhatsApp. You can contact anyone around the globe for free using WhatsApp but you obviously need a good internet connection to operate WhatsApp.

Arun Chaudhary

Arun is SEO Analyst at KrispCall. He has written in extensively in the field of cloud telephony and call center solutions.

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