6 Best VoIP Apps for Android in 2026

RingCentral is my top pick for employees who need their business phone system to follow them throughout the workday. Its Android app combines calls, messages, and meetings, making it useful for a salesperson moving between client visits or a manager splitting time between the office and home. Call flip lets you move an active conversation to another device, while mobile forwarding gives you control over where incoming calls ring.

What sets RingCentral apart is the combination of customer communication and internal collaboration in one app. Employees can handle a client call and then connect with colleagues without switching to a separate meeting platform. Its broader integration ecosystem also suits businesses that want their phone service connected to other work tools.

The main drawback is cost as your requirements expand. AI capabilities vary by tier, and customer engagement tools can require additional subscriptions. Businesses that rely heavily on texting also need to account for SMS allowances and registration requirements. For a solopreneur primarily looking for a second business number, Grasshopper offers a simpler alternative.

Prices are per user, per month. Annual figures are monthly equivalents billed annually. Customer engagement bundles are available at custom prices.

• Call flip: Continue a live conversation on another configured device without transferring the customer to a different employee. This is useful when you need to leave your desk during a call.
• Mobile call forwarding: Change where incoming business calls ring from the mobile app. Employees can remain reachable as their locations change throughout the day.
• Unified communications: Calls, messages, and meetings share one app, giving mobile employees access to both customer conversations and team collaboration. AI functionality depends on the selected plan.
  

  

Zoom Phone is my pick for businesses that need to coordinate calling across locations, particularly teams already using Zoom Workplace. Employees can handle business calls on mobile and desktop devices, while the US & CA Unlimited plan includes a domestic number, recording, SMS/MMS, and AI tools. Keeping those functions in the Zoom environment also gives existing users a familiar place to manage their communications.

Its international options make it worth considering for businesses with employees or customers in different countries. However, local phone service coverage and international calling allowances are separate considerations. The US & CA Unlimited plan covers domestic calling and meters international calls, but overseas destinations are not automatically included just because Zoom offers service in that country.

I also like the AI features for employees who need help with follow-ups. Post-call summaries and task extraction can make it easier to review a conversation after returning from a client visit. Businesses needing longer video meetings can choose a Workplace bundle, while organizations with global requirements can work with sales on their service and calling package.

Prices are per user, per month. Annual figures are monthly equivalents billed annually. The US & CA Unlimited plan meters international calls. Workplace bundles add meeting and collaboration capabilities.

• Multi-device calling: Make and receive business calls across supported devices. Call flip lets you place a call on hold and pick it up on another device, such as your Android phone or desk phone.
• AI tools: Post-call summaries, voicemail prioritization, and task extraction help organize conversations and follow-up work.
• International calling: Businesses can explore local phone service and calling packages for their operating locations.
  

  

Nextiva is a strong fit for businesses that want mobile calling and texting alongside a broader customer communication platform. Core includes inbound and outbound voice, SMS, and mobile app access, so a small team can start with everyday business communications before adding more advanced engagement tools.

The Android experience depends on the Nextiva product associated with your account. NextivaONE brings calls, texts, voicemail, and business contacts together on mobile, with video and team collaboration available on desktop. The newer NEXT mobile app provides inboxes for calls, texts, and email. Those differences matter for businesses that want employees to handle multiple types of customer conversations over the phone.

I recommend Nextiva when a company’s needs extend beyond a separate phone line. Engage adds customer-to-team SMS and live chat, while Scale provides more advanced customer experience capabilities. The tradeoff is that platform features and mobile access do not always align. This makes RingCentral a better fit when your priority is calling, messaging, and meetings in a single mobile interface.

Prices are per user, per month. Discounted annual small-business rates apply to new customers with 1–100 employees signing a paid agreement with a minimum term of 12 months. Add-ons and usage charges may apply.

• Business contacts: NextivaONE gives mobile users access to business contacts and teammate information, making it easier to reach a colleague or return a customer call.
• Call pull and transfers: Pull an active call to your mobile device or transfer a caller to another recipient. Call pull is particularly useful when a conversation starts at your desk and continues as you leave the office.
• Customer communications: Nextiva’s plans extend from mobile calling and SMS to broader customer engagement tools, like call performance and reputation management. 

Ooma is my choice for businesses that want familiar phone functions on Android without making desk phones the center of their workflow. The Ooma Office mobile app handles voicemail, conference calling, and transfers. Employees can move an active call between their Ooma phone and the mobile app, making it useful for reception staff, service businesses, and owners who spend part of the day away from their desks.

Essentials includes the mobile app and unlimited calling to the US, Canada, Mexico, and Puerto Rico. That makes it a practical starting point for a business focused on voice calls. Pro adds texting and recording, while Pro Plus adds call queuing, mobile team chat, CRM integration, and AI transcriptions and insights.

Ooma has more collaboration options than a basic desk phone replacement, but some functions use separate interfaces. Video meetings run through Ooma Meetings, which has its own Android app. AI answering and receptionist services are available as add-ons. That means I would choose Ooma for straightforward business calling and upgrade only when the team needs texting, shared conversations, or more advanced customer call handling.

Prices are per user, per month, with no contract necessary on the published Office plans. Pro includes up to 250 texts monthly; Pro Plus includes up to 1,000. AI answering and receptionist services cost extra.

• Call flip and transfers: Move a live conversation between your Ooma phone and the mobile app, or transfer a caller to another extension or voicemail. Employees can stay with a conversation as they move away from their desks.
• Virtual receptionist: Direct callers through the business phone system to the appropriate employee or destination. Pro Plus adds call queuing for businesses that need to manage callers waiting for assistance.
• Mobile collaboration: Pro Plus supports team chat on mobile, while eligible plans provide video conferencing through the separate Ooma Meetings Android app. These tools extend the service beyond voice calling.
  

  

Phone.com stands out for businesses that want personal and business contacts accessible in a single Android address book. Instead of maintaining completely separate contact lists for work calls, employees can use the mobile app to find contacts, make calls, access voicemail, and manage SMS conversations. That makes it a useful option for professionals whose customer relationships span the office and the field.

I also like its flexibility for teams with different calling needs. Phone.com lets businesses assign different plans to different users, so an employee who needs call recording can use Pro while someone with simpler requirements uses a lower tier. Recording is included for Pro and costs extra on Basic and Plus.

The ProSIM add-on offers another approach to mobile business communication. For an additional $10 a month, supported devices can use the cellular voice network and native dialer for business calls and messages. That is useful for employees who prefer their phone’s built-in calling interface, although device and carrier compatibility affect availability.

Prices are per user, per month. Phone.com allows different plans for different users. ProSIM costs an additional $10 per month; taxes and fees are extra.

• Combined address book: Access personal device contacts alongside business contacts synchronized with Phone.com. Employees can find customer information without constantly moving between separate contact lists.
• Flexible plans: Assign plans according to each employee’s communication needs. Call recording is included with Pro and available for an additional fee on lower tiers.
• ProSIM: Use business calling and messaging through a supported phone’s native cellular interface. The $10 monthly add-on provides an alternative to relying exclusively on the VoIP app.

Grasshopper is my pick for solopreneurs who want a separate business number on their Android phone. Its mobile app combines business calls, texts, voicemail, and call history, helping owners keep work communications separate from personal conversations without adopting a larger collaboration platform.

The account-based packages are particularly useful as a small business adds people. True Solo supports one user and one extension, while Solo Plus supports unlimited users and three extensions. Small Business supports unlimited users and extensions. Unlike a subscription priced per employee, eligible Grasshopper packages let additional users share the account without multiplying the base subscription fee.

Grasshopper works best when your main requirements are professional calling, texting, and voicemail. It does not offer built-in video meetings or team chat, making it less suitable for businesses that want a complete internal collaboration suite. RingCentral is the stronger choice for that use case, while Grasshopper focuses on communicating with customers through a dedicated work number.

*Account-based prices. Seven-day free trial; no credit card required.

• Instant Response: Automatically text a new caller after a missed call to acknowledge their inquiry.
• Mobile voicemail: Listen to messages and review voicemail transcriptions in the app.
• Business calling and texting: Show your business number when calling or texting from your Android phone.