Best business phone apps

The best business phone apps give your company a professional phone presence: separate from your personal number: with features like auto-attendant, call routing, and voicemail transcription.

You can run a fully professional business phone system from your personal smartphone for a fraction of a traditional PBX system’s cost.

Here’s how the top options compare for small businesses, freelancers, and remote teams.

Why a business phone app matters for small businesses

Using your personal cell number for business creates three problems: clients have direct access to you 24/7 with no boundary, you can’t easily route calls to team members, and there’s no voicemail transcription or call analytics to track missed opportunities. The best phone app for business solves all three.

Modern best business phone apps use VoIP (Voice over IP) technology, which means they work over your existing internet connection rather than requiring a separate phone line. This makes them dramatically cheaper than traditional phone systems while adding features that traditional systems charge extra for.

Best business phone apps compared

Best VoIP app for small business: what VoIP actually means

The best voip app for small business handles calls over your internet connection rather than traditional phone lines. VoIP (Voice over Internet Protocol) is the technology behind virtually every modern business phone app, from Google Voice to RingCentral.

The quality of your VoIP calls depends primarily on your internet connection speed and stability. A standard broadband connection handles VoIP calls well. Unstable Wi-Fi or a weak mobile data signal can cause dropped calls and audio quality issues regardless of which app you use.

The best voip app for business for most small businesses under 10 people is OpenPhone or Google Voice for Business, both of which offer a compelling balance of features and cost without the enterprise complexity of RingCentral or Cisco.

Best business phone app for iPhone

The best business phone app for iPhone integrates naturally with iOS features like Siri, CarPlay, and native Contacts without draining your battery or requiring you to constantly switch between apps. OpenPhone and Dialpad both have well-rated iPhone apps with native iOS integration.

If you already use Google Workspace, Google Voice is the most frictionless option on iPhone since it uses the same account as your Gmail, Calendar, and Drive. It keeps your business number completely separate from your personal number while sharing the same Google account infrastructure.

Best second phone number for business

The best second phone number for business is a virtual number through an app rather than a physical second SIM card. Virtual business numbers cost $10 to $30 per month and give you a dedicated business line that rings on the same device as your personal number.

The best second number app for business options include OpenPhone, Google Voice, and Grasshopper. All three let you choose a local area code number, and all support forwarding calls to your existing phone when the business app isn’t active. This means you can have a New York area code business number while physically located anywhere.

Best phone options for small business: features that matter

Beyond basic calling, several features make a meaningful difference for business use. Here’s what to look for when evaluating best phone options for small business:

• Voicemail transcription: converts voicemails to text you can read without listening, saving significant time
• Business hours settings: sends calls to voicemail automatically outside your set hours without manual management
• Call recording: essential for quality control, training, and dispute resolution
• Auto-attendant (“press 1 for sales”): routes callers to the right person without a live receptionist
• CRM integration: logs calls automatically in HubSpot, Salesforce, or your CRM of choice

Best voice over IP service for remote teams

The best voice over ip service for a distributed remote team is one that keeps every team member reachable under a single business number with clear call routing. RingCentral handles this most comprehensively, with intelligent routing, team presence indicators (so you know who’s available), and integrated video conferencing alongside voice.

For smaller remote teams, OpenPhone’s shared number inbox lets multiple team members see and respond to calls and texts coming into one business number, which is especially useful for customer-facing teams where multiple people cover incoming inquiries.

The best voice over internet phone service for your specific situation depends primarily on team size and how complex your call routing needs to be. Solo operators do well with Google Voice or Grasshopper. Growing teams benefit from OpenPhone’s collaboration features. Larger organizations with complex routing needs get the most value from RingCentral’s full platform.

Business phone app security: protecting client communications

Business phone numbers handled through VoIP apps carry real security considerations that a personal cell line doesn’t, particularly when client conversations involve sensitive information. The best business phone apps include call encryption, access controls for team member account management, and data retention policies that comply with industry regulations if your business operates in a regulated field.

For healthcare businesses subject to HIPAA, standard VoIP apps are generally not compliant without additional agreements. RingCentral offers HIPAA-compliant plans with Business Associate Agreements. For financial services and legal firms with specific record-keeping requirements, check each platform’s data retention and compliance documentation before committing.

Setting up your business phone app for maximum efficiency

The setup choices you make in the first hour of using a business phone app determine how much friction the tool adds or removes from your day. Setting business hours correctly (so calls route to voicemail after hours without you manually toggling anything) takes 5 minutes and saves repeated interruptions. Recording a professional voicemail greeting takes 2 minutes and immediately improves how clients perceive your business.

Most business phone apps let you set up an auto-attendant menu for free. Even a simple one-layer menu (“Press 1 for sales, press 2 for support”) routes clients correctly without your involvement and signals to callers that they’ve reached a professional operation, not just a personal cell number.