7 Best VoIP Apps for iPhone for Small Businesses

RingCentral wins as our overall best VoIP app for iPhone users needing access to various call features straight from their mobile devices. You get all the desk phone functionalities along with advanced call management, like multilevel auto-attendant, answering rules, and call flip.

As the industry-leading VoIP phone system, RingCentral is more than just a full-featured phone service. It works as a personal AI assistant that generates real-time call notes, writes polished messages, and creates video meeting highlights. The AI noise cancellation reduces the background sounds on your calls and meetings, ensuring quality conversations.

On the downside, RingCentral’s extensive feature set may be more than a startup or small team needs. If this is the case, Grasshopper focuses on phone calling and text messaging only.

• Call screening: Control who reaches you by phone and how the call is handled. When the caller ID appears, your options include accepting, declining, blocking, or sending the phone to voicemail.
• Call-to-video: Switch a live call to a video meeting or simply share your screen during a 1:1 call. This allows you to switch channels without interruptions conveniently.
• Call forwarding: Automatically forward calls to any office, home, or mobile number to ensure no phones go unanswered.

Work anywhere with the RingCentral iOS app. (Source: RingCentral)

Nextiva is one of our best VoIP apps for iPhone, thanks to its mobile-accessible customer engagement platform. This works for remote teams needing access to customer interaction channels like voice, video, email, and SMS. Its customer conversation suite brings all these channels into one place, providing a full view of customer communication history.

The NextivaONE app lets you instantly start meetings, make calls, and send messages to your customers from anywhere. Customer engagement tools sit alongside team collaboration tools, so you can coordinate with external departments when handling an inquiry.

While I’m impressed with Nextiva’s customer-centric offerings, its full-featured conversation suite can be overwhelming for solopreneurs or small teams looking for a less complex solution. If this is what you need, you’re better off with a voice-focused VoIP app for iPhone like Ooma, which has over 50 standard call features.

• Team chat: With Nextiva’s secure chat, you can chat with colleagues instantly. Communicate in real time, screen share, see your message history, and hop into video calls with one click.
• Do not disturb (DND): Activating this feature automatically ignores all incoming calls. Callers will either hear a busy signal or be rerouted to your voicemail.
• Auto-attendant: Callers will hear an instant automated greeting that allows them to choose the person, extension, or department they wish to reach. Calls are managed without the need for a human receptionist.

Nextiva lets you easily browse your chat messages in the mobile app. (Source: Nextiva)

Ooma is the best voice-over IP app for iPhone users seeking a straightforward office phone system at a reasonable cost. The Ooma Office mobile app makes it easy to differentiate between work and personal calls.

When the phone rings, it will let you know if it’s an Ooma call and include important caller information. Advanced telephony features allow you to swap between two callers on the same line, prioritize voicemails, and block calls from robocalls.

The Ooma app comes with unique iOS features to ensure greater efficiency. Under contacts, you can assign each caller a specific icon to differentiate their phone line type. An iOS widget is available for one-tap access to voicemail, dial pad, and call logs. You can also multitask by minimizing active call or voicemail screens.

However, if you want to integrate your phone system with third-party software, you’re better off with a fully integrated VoIP app like RingCentral. This provider has over 300 integrations with various business platforms, including CRM, marketing automation, and analytics.

• Dynamic caller ID: Set custom star codes to change caller ID for outbound calls dynamically. This is useful for phone operators placing calls on behalf of multiple executives.
• Caller info match: This feature presents a preview window with information about incoming and outbound calls based on the caller ID name or phone number. Set up different website searches for Google, Facebook, and LinkedIn.
• Advanced call logs: This feature provides additional information on inbound or outbound calls, indicating whether a call was answered, sent to voicemail, missed, or disconnected.

Handle multiple calls simultaneously without interruptions. (Source: Ooma)

Talkroute makes the best VoIP calling app for iPhone users unfamiliar with VoIP on their smartphones. It emphasizes simplicity and user-friendliness, ideal for those new to cloud phone systems. Its iOS version has accessible call functions that make it easy to switch between different phone numbers and manage your business calls on the go.

Starting at just $19 monthly, this provider offers text messaging, unlimited calling, video meetings, and a wide range of basic call features. These include call routing, voicemail boxes, custom greetings, and virtual phone numbers. Despite lacking AI features, Talkroute’s straightforward nature makes it a good fit for those who prefer a no-frills VoIP platform.

Note that Talkroute doesn’t support international outgoing calls. This can be a disadvantage to businesses wanting to expand their global reach. Instead, try Ooma, which guarantees low-cost rates for global calling and supports unlimited calls to the US, Canada, Mexico, and Puerto Rico.

• Hours of operation: Specify the date and time when your phones are available to receive calls. Set multiple time slots per day and add unique call routing rules when closed.
• Text-to-email: Receive your business text messages straight from your email inbox. The email consists of the sender’s information, number, and a copy of the message.
• Submenus: Add multiple branches to your main call menu. This is useful for creating multiple layers of menus to accommodate various service options and language preferences.

Talkroute mobile app maintains easy navigation. (Source: Talkroute)

800.com is the ideal iPhone VoIP app for anyone focused on obtaining a custom virtual phone number that best represents their business. It distinguishes itself from other VoIP apps by offering a large selection of toll-free and vanity numbers that align with your brand, enhancing professionalism and memorability.

When signing up at 800.com, you’ll need to specify the purpose of getting a phone number—whether for toll-free service, local calling, faxing, or bulk purchase. This helps ensure that the services included with your number are customized to meet your specific requirements.

Note that 800.com’s streamlined feature set is limited to forwarding and tracking incoming calls. If you need comprehensive call management to handle high call volumes, go for RingCentral. Its entry-level plan offers everything you need for efficient call distribution.

• International call forwarding: While 800.com doesn’t support international calling from its app, users can route their number to up to 60 countries without additional fees. However, termination fees apply to certain destinations.
• Comprehensive inbox: This feature provides centralized storage for accessing your calls, SMS, voicemail, and faxes. All activities are displayed in one list, which you can narrow down by date and type with the filter button.
• Auto replies: Send an automatic text response based on specific days or time ranges. A message will be automatically sent if a customer texts in a specific keyword or contacts your business after hours.

800.com maintains a consistently clean mobile interface. (Source: 800.com)

Grasshopper is our best voice-over IP app for iPhone, specifically for businesses that use text messaging as their primary communication channel. While most providers limit SMS credits per plan, Grasshopper supports unlimited texting, allowing you to send updates and quick replies to customers without worrying about overage fees.

To enable unlimited text messaging, you must pay a one-time fee of $19 in compliance with The Campaign Registry (for US numbers only). Leverage business SMS using the instant response feature to send automated replies to missed calls from first-time callers. You can customize your messaging by adding pictures and website links.

Grasshopper lacks unified communication features like video calls and team chat. Collaborative teams should consider Nextiva, an all-in-one communication platform for video meetings, productivity, team messaging, and customer engagement.

• Incoming call control: Determine how and when you will receive calls and the call flow for each scenario. Screen callers, block numbers, ring all forwarding numbers, and set business hours schedules.
• Wi-Fi calling: Use the best connection available and make and receive calls on a Wi-Fi network, perfect for areas with poor cellular reception. Using Wi-Fi for outbound communications saves you minutes and cellular data.
• Simultaneous call handling: Limit missed calls by setting up multiple call forwarding numbers and answering all incoming calls, even during peak call times.

Turn your personal phone into a business phone system. (Source: App Store)

Phone.com is the only provider on this list with metered and unlimited pricing options. It’s one of the cheapest VoIP services, offering diverse subscription options to ensure users only pay for what they need. The entry-level plan includes 500 pooled minutes and 1,000 pooled text segments, making it ideal for businesses dealing with low call and text volumes.

Metered subscribers in one account can share their minutes with other team members. So, if you have three basic users, they can use the combined 1,500 minutes for inbound and outbound calling. A la carte services are also available for additional minute bundles, live receptionist, international dialing, global numbers, call recording, and custom phone numbers.

Unfortunately, CRM integrations are limited to Pro users. If you want to avoid the cost of upgrading to high-level plans to access out-of-the-box integrations, consider RingCentral. It integrates with over 300 applications, including popular CRM systems, productivity tools, and support platforms.

• Voice tagging: This feature specifies the caller’s selected menu options before answering a call. For example, if the caller enters “Business Line,” you will hear the voice tag “Business Line,” and the call will connect.
• Call handling: Create a set of options to route inbound callers to their desired destination properly. Options include auto-attendant, dial-by-name directory, forwarding, and scheduled routing.
• Live receptionist: Add a professional touch to your business with a live answering service that takes calls for various industries. Monthly plans start at $90 for 50 minutes with no set-up fee.

Read your voicemail transcripts at your own time. (Source: Phone.com)