6 Best VoIP Apps for Android in 2025

RingCentral emerged as the top VoIP phone system for Android users seeking access to all the tools they need to communicate with customers and collaborate with remote teams. It provides mobile app access for customizing call flows, configuring call rules, and adding blocked numbers—actions that most competitors only allow through a mobile browser.

On top of its complete call management system, RingCentral delivers artificial intelligence (AI) capabilities to support efficient remote and hybrid work. Whether it’s for a video meeting or audio call, users get a complete summary of the discussion, view live captions, and translate conversations into multiple languages.

While RingCentral supports text messaging, businesses that regularly communicate with clients via SMS should look elsewhere due to its strict SMS credits. I recommend Grasshopper, which allows users to send unlimited text messages starting at only $18 per user monthly.

• Call flip: Move an ongoing call between your smartphone, desktop, or desk phone without interruption. Unlike call transfer, calls should be answered by the person who initiated the conversation.
• Answering rules: Customize the days and hours of your business operations with specific greetings and routing rules. It also lets you set after-hours rules to route calls to voicemail or a home phone number.
• Video conferencing: Host and join online video meetings and access advanced meeting tools, such as meeting summaries, noise reduction, and presentation modes.

Seamlessly switch between phone calls and text messaging. (Source: RingCentral)

Nextiva offers a customer-centric solution for on-the-go teams wanting to stay on top of client communications anywhere. The NextivaONE app supports a wide range of engagement channels such as voice, live chat, social media, video, email, and reviews, allowing you to meet customers wherever they are.

I also recommend Nextiva as the best SIP app for Android users who value ease of use and centralized management. Apart from making client calls, users can publish content, monitor conversations, and spot social trends—all in one place. It also incorporates AI on every channel, allowing you to solve customer queries faster and more accurately.

Unlike competitors that include phone capabilities in their entry-level plan, Nextiva requires a plan upgrade costing $35 per user monthly. If you’re seeking a cheap VoIP app that aligns with your budget, check out Zoom Phone, which starts at only $10 per user monthly.

• Hunt group: When a caller dials one extension or phone number, this feature will ring multiple users assigned to that hunt group. It can be set to ring the users sequentially, simultaneously, or by a designated priority.
• Call notify: If you’re too busy to answer a live call, you will get an email notification when an important contact calls your business number. These alerts contain the caller’s information and the time stamp.
• Call analytics: Examine call trends based on real-time and historical data. Identify top performers, analyze call quality, and gain insights on overall call activity.

Make calls, host meetings, and chat with teammates. (Source: Nextiva)

Zoom Phone is the best VoIP app for Android users seeking to expand their business reach across geographical regions. For just $20 monthly, a user can make unlimited calls to one international destination in any of the 49 supported countries. A global calling add-on is available, allowing unlimited calls to over 15 regions.

With a monthly starting plan of $10, Zoom Phone offers one of the most budget-friendly VoIP solutions in the market. While cheap, Zoom doesn’t sacrifice functionality due to its all-inclusive plans. This means you get the same number of features across tiers, including call handling, video conferencing, team chat, and even free AI capabilities.

On the downside, obtaining a toll-free number through Zoom comes with a monthly charge compared to competitors that offer it for free upon sign-up. If you need a memorable 800 number for your business, Grasshopper gives you a toll-free vanity number on any plan selection.

• Call flip: Move an ongoing call to another device by placing it on hold and picking it up on a different device (desktop client, desk phone, or mobile app). The other party will hear music while on hold.
• Lock call: Members of a shared line group or call delegation setup can lock a current call to prevent others from monitoring the conversation or picking up the held call.
• Post-call summary: Provides a summary of a recorded conversation so you’ll know what key topics and action items were discussed.

Summarize voicemails and chat threads with Zoom’s AI Companion. (Source: Zoom Phone)

VoIP users accustomed to managing calls through desk phones but looking to switch to their mobile devices should consider Ooma. This provider replicates the basic functionalities of a desk phone, such as call park, call blocking, virtual extensions, and call queuing—maintaining the professional quality of a business phone system.

While Ooma lacks the AI and collaboration tools offered by RingCentral and Zoom Phone, this no-frills approach ensures a seamless transition for those who simply want to leverage the benefits of cloud-based calling. Moreover, you can start making calls within minutes after setting up your account.

Ooma is also limited, offering third-party integrations with only 13 applications, such as Salesforce, Zoho, HubSpot, and Zendesk. RingCentral stands out as the best VoIP app for Android regarding integrations, connecting with over 300 business solutions.

• Call queuing: Build a simple call center flow by automatically placing calls on hold and directing them to the next available member. Each queue can hold 25 calls at a time.
• Dynamic caller ID: Create a unique caller ID when making outgoing calls. Use this feature if you have multiple departments or a receptionist supporting multiple offices or executives.
• Extension monitor: If you have dedicated phone operators, this feature allows them to perform various actions on a user’s extension. This includes checking the status, transferring a call, and starting a three-way call.

Boost productivity with Ooma’s streamlined interface. (Source: Ooma)

Solopreneurs often switch to VoIP to secure a second phone line on their personal devices. Grasshopper offers a cost-effective solution for this need by allowing users to separate their work and personal texts and calls. Upon sign-up, users can claim a local or toll-free vanity number and access a suite of business phone features.

Grasshopper is designed for small teams that don’t need advanced capabilities to manage their low call volumes. All plans share the same set of features, like business SMS and call forwarding, so you don’t have to upgrade to premium tiers to access a specific feature.

In terms of collaboration features, Grasshopper lags behind other providers as it doesn’t support team chat and video meetings. RingCentral might be a better fit for those seeking a versatile VoIP Android app for team and customer communications.

• Instant response: When you miss a call from a new client, this feature will automatically respond through a text message to let them know you’re unavailable. Customize auto replies by adding images and hyperlinks.
• Virtual voicemail: A dedicated business voicemail box that provides access to your voicemail messages through an app. Voicemail recordings are sent as MP3 files to your email inbox.
• Incoming call control: Customize how and when to receive calls during and after business hours. You may set up a call schedule, block unwanted calls, or ring forwarding numbers simultaneously.

Choose your desired phone number before making a call. (Source: Grasshopper)

Managing your business contacts both on your device and the cloud can be time-consuming for most due to endless manual editing and adding contact entries. Phone.com offers a centralized address book to manage and transfer contacts while syncing them to multiple devices.

Besides sorting phone numbers, Phone.com’s contact management uses contact routing, which sets up your address book to route calls automatically from specific numbers to a preferred contact. This process streamlines call management by ensuring callers are routed to the right destination efficiently.

Like Grasshopper, team collaboration with Phone.com can be tricky as it doesn’t support chat messaging. RingCentral shines with its complete cloud phone system if you’re looking for an all-in-one communications tool.

• Analog phones: Phone.com lets you connect any traditional desk phone to its VoIP service. Simply plug its analog telephone adapter (ATA) into a network and your phone’s RJ11 jack.
• Fax-from-phone: Send confidential files via fax through Phone.com’s virtual faxing feature. Supported formats include doc, pdf, jpg, xls, and html.
• Schedules: Automatically direct calls to a specific destination depending on the time and date the call comes through. You can direct calls to a different phone number, extension, greetings, or menus.

Phone.com supports phone, SMS, and outbound faxing. (Source: Phone.com)