14 best second phone number apps for 2024

When you’re running a business, the last thing you want is to use your personal number for your company. Imagine putting your private phone number on Google for all to see or getting business calls through the night with no way to distinguish them from your personal calls. Using a personal number can quickly grow bothersome, hectic, and insecure, especially as your business expands.

The good news is getting an alternate phone number — one you can exclusively use for business — is simple and affordable. Instead of purchasing a brand-new landline or cell phone, all you need to do is sign up for a second phone number app to separate business and personal calls with ease.

This article can help you make the right choice by comparing the benefits of the top 14 second phone number apps of 2024:

1. OpenPhone: The best second phone number app for growing teams
2. Google Voice: Best for businesses with Google Workspace
3. Sideline: Best for text marketing
4. Burner: Best for deleting numbers after use
5. TextFree: Best for free calls and texts in the US
6. Line2: Best for single phone numbers
7. Dialpad: Best for AI solutions
8. Vonage: Best for video calling
9. Ooma: Best for reaching Mexico and Puerto Rico
10. Grasshopper: Best for phone number extensions
11. JustCall: Best for international numbers
12. Hushed: Best for numbers with UK area codes
13. TextNow: Best for plans with high-speed data
14. 2ndLine: Best for Android users

The best apps for a second phone number compared

Looking to see how these apps stack up side by side? Here’s a quick snapshot of how each of the best second phone number apps compares.

Provider	Starting Price	Unlimited calling to US & Canada	SMS, MMS to US & Canada	Shared phone numbers	Additional phone numbers
OpenPhone	$15 per user per month	✓	✓	✓	$5 per number per month
Google Voice	$16 per user per month(must have Google Workspace)	Unlimited calls to Canada from the US only	US only	Requires upgrade (ring groups only)	X
Sideline	$9.99 per month per user	Unlimited in US only	X	Requires Team Number plan	X
Burner	$4.99 per month	Mobile app only	X	X	Pricing varies
TextFree	$9.99 per month	✓	SMS only	X	X
Line2	$13.75 per month	✓	✓	X	$14.99 per number per month
Dialpad	$15 per user per month	✓	For US & Canadian customers only	✓	Requires upgrade
Vonage	$19.99 per user per month (1-year contract)	✓	Local US and Canadian numbers only	Requires upgrade or $4.99 add-on for each call group	$14.99 per number per month
Ooma	$19.95 per user per month	✓	Requires upgrade	✓	$9.95 per number per month
Grasshopper	$14 per month	✓	Local numbers only	X	$10 per number per month
JustCall	$19 a month per user	Requires upgrade	✓	✓	$6 to $10 per number per month
Hushed	$2.99 per month	Requires upgrade	Requires upgrade	X	Starting at $2.99 for bundled minutes and text credits
TextNow	$0 per month	✓	✓	X	X
2ndLine	$0 per month	✓	✓	X	X

Keep reading to explore these calling apps in detail.

1. OpenPhone: The best second phone number app

*Nearly all virtual phone numbers share this problem. Since VoIP numbers aren’t tied to a physical address, they can’t be used to call emergency services.

OpenPhone is a modern VoIP phone system built for businesses to help growing teams easily scale their communication. When you sign up, you can get one free US, Canadian, or toll-free number for every user on your team — and you can always get more numbers for $5 each per month. Alternatively, you can assign specific team members to shared phone numbers so anyone available can pick up calls or respond to texts.

OpenPhone is far more than a second phone number app. It’s here to help your business streamline your phone and text communication. For example, you can set up automations like an auto-attendant, which lets your clients route their own calls, and texting auto-replies to reach out to contacts over text when you miss incoming calls. Or, you can integrate with business apps like Gmail, Slack, Zapier, and HubSpot to speed up your workflow.

Key features of OpenPhone

• Free calls and texts in the US and Canada
• Text from your computer, smartphone, or tablet 
• Affordable international calls
• Shared phone numbers
• Direct team messaging, internal threads, and other collaborative elements
• Call recording
• Voicemail transcriptions
• Auto-attendant (IVR)
• Schedule text messages
• Text message auto-replies
• Business hour settings
• Integrations with business apps like Slack, Zapier, and HubSpot CRM

OpenPhone pricing

• Starter: $15 per user per month
• Business: $23 per user per month to access phone menus (IVR), call transfers, analytics, CRM integrations, and more
• Enterprise: Contact us for more information

See for yourself why thousands of businesses use OpenPhone — sign up for a free, one-week trial.

OpenPhone app download links

• iOS
• Android

2. Google Voice: Best for businesses with Google Workspace

Google Voice for Google Workspace is a popular second phone number app for iPhone, Android, and the web. However, it offers fairly limited features for a business phone system, even with upgrades. Google Voice doesn’t support toll-free numbers, call recording, or many other features that modern businesses need.

While Google Voice offers a basic VoIP call forwarding service to all users, you need to upgrade to unlock auto-attendants. Plus, you’re limited to just two integrations, both of which are Google tools (they don’t even include Gmail). You also can’t send text messages if you’re located outside of the US.

Google Voice for Google Workspace starts at $10 per user per month. You also have to subscribe to Google Workspace, which starts at $6 per user per month.

Key features of Google Voice

• Unlimited calls to the US or Canada from the US
• Unlimited texts in the US
• Auto-attendant (upgrade required)
• Integrations with Google Calendar and Google Meet

Google Voice pricing

While Google Voice has a free version (in the US only), it’s not intended for business use. You won’t be able to access ring groups, auto-attendants, and other features. For their paid plans:

• Starter: $10 per user per month* (maximum of 10 users)
• Standard: $20 per user per month* to access on-demand call recordings, ring groups, and phone menus
• Premier: $30 per user per month* to access automatic call recordings and advanced reporting

*Plus at least $6 per user per month for Google Workspace.

Google Voice app download links

• iOS
• Android

3. Sideline: Best for text marketing

Sideline is a smartphone app that supports alternate phone numbers in the contiguous US. It also offers a web app, though it doesn’t support phone calls.

Sideline is best known as a text messaging service for business, which means its most useful features — like auto-replies and text marketing tools — help you text clients with ease. International calling and auto-attendant aren’t available unless you upgrade. Toll-free numbers, call recordings, and integrations aren’t possible with Sideline. 

Keep in mind with Sideline also you must activate VoIP calling in the app’s settings if you don’t want to use up your cell phone minutes.

Sideline key features

• Unlimited calls and texts in the US (except Hawaii and Alaska)
• Shared phone numbers
• Text message auto-replies
• Text message templates (upgrade required)
• Business hour settings (upgrade and iOS required)

Sideline pricing

One challenge you may run into with Sideline is getting all the features you need. Sideline provides different features on each plan, and none of them offer all features at the same time. Their Standard plan offers auto-replies and basic calling and texting.

• Standard: $9.99 per month (can only have one user and a second number per account)
• Pro: $14.99 per line per month to unlock international calling and auto-attendant (IVR) capabilities (both of these features require an additional cost)

Sideline app download links

• iOS
• Android

4. Burner: Best for deleting numbers after use

Burner is a second phone number app for Android and iOS designed to protect your privacy. From spam-blocking technology to do-not-disturb settings, it’s filled with features that can keep you safe. Plus, after you sign up, you can treat your alternate phone numbers like burner numbers by switching or deleting them at any time.

But Burner isn’t the best option for teams looking to make a good impression. While the app lets you purchase up to 200 local phone numbers with area codes throughout the US and Canada, the software isn’t always reliable. Don’t expect any advanced business features beyond text message auto-replies either.

Key features of Burner

• Unlimited calls and texts in the US and Canada
• Text message auto-replies
• Spam call blocking
• Integrations with business apps like Slack, Google Drive, and Evernote

Burner pricing

Burner’s pricing for one phone number starts at $4.99 per month. However, the actual price depends on the area code you’re looking for and the total number of phone numbers you need. Unfortunately, Burner doesn’t share the exact costs publicly and requires you to download their app before you’re presented with how much you can pay for those numbers through Burner.

Burner app download links

• iOS
• Android

5. TextFree: Best for free calls and texts in the US

TextFree is a basic US phone number app you can access from your desktop and smartphone when you sign up for free. However, you have to put up with ads in the calling interface — you need to upgrade if you want an ad-free experience.

Don’t expect any outstanding business features from this second phone number app. Since it’s built for personal use, you can’t add team members, get extra phone numbers, or send international texts. Plus, TextFree may deactivate your account if you don’t use your number at least once per month.

Key features of TextFree

• Unlimited texting in the US
• Unlimited inbound calls (minutes or upgrade required for outbound calls)
• International calls to Canada, Mexico, Singapore, and India (minutes required)

TextFree pricing

You can sign up for TextFree for free, but you risk losing your alternate phone number if you go 30 days without making a phone call or sending a text. Its limited paid plan starts at $9.99 per month.

TextFree app download links

• iOS
• Android

6. Line2: Best for single phone numbers

Line2 is a second phone number app that supports unlimited calls and texts in the US via local and toll-free numbers. It’s also available as a desktop and mobile app.

However, Line2 is not a robust platform. There are no shared numbers, no international calls, and most of the business features you need require plan upgrades or add-ons. Additional numbers, for example, cost $14.99 per line — nearly three times the cost of OpenPhone’s additional numbers.

Key features of Line2

• Unlimited calls in the US and Canada
• Unlimited texts in the US
• Auto-attendant (upgrade required)
• Call recording (add-on or upgrade required)
• Voicemail transcriptions (add-on or upgrade required)

Line2 pricing

• Monthly: $15.99 per month
• Annual: $13.75 per month

Line2 app download links

• iOS
• Android

7. Dialpad: Best for AI solutions

Dialpad is a feature-rich business phone system that offers a number of helpful features, including call recording and voicemail transcriptions. It also supports AI solutions (including an AI speech coach) with every plan. But if you want your new number to be toll-free, you can expect to pay an extra $15-$17 per month.

Dialpad requires you to upgrade for international texting, auto-replies, and integrations, which can make it an incredibly costly service for small businesses. You can’t send international texts, set up auto-replies, or integrate with apps (other than Google Workspace and Office 365) without an upgrade. Plus, you must pay for at least three users for a Pro plan or 100 users for an Enterprise plan if you do upgrade.

Key features of Dialpad

• Unlimited calls and texts in the US and Canada
• Call recording
• Voicemail transcriptions
• Auto-attendant (IVR)
• Integrations with business apps like Slack, Zapier, and HubSpot (upgrade required)

Dialpad pricing

• Standard: $15 per user per month (maximum of 3 users on a shared number; no additional numbers allowed)
• Pro: $25 per user per month (minimum of 3 users) to get additional numbers, international texting, call transfers, and auto-replies
• Enterprise: Custom pricing (100-user minimum) to access dial by extension, priority support, and 100% uptime

Dialpad app download links

• iOS
• Android

8. Vonage: Best for video calling

Vonage is a VoIP platform offering unlimited calls and texts on its mobile and desktop apps. It also provides internal team messaging when you need to contact the right person. But like many other legacy systems, prepare to upgrade for the best features. Many business features like auto-attendant and call recording require upgrades or come at an extra cost. You also can’t sign up for a free trial of Vonage — you have to sign a one year minimum contract to get started.

You also have to pay more per user if you have a smaller number of people on your team. This could be extremely cost prohibitive for growing small businesses.

Key features of Vonage

• Unlimited calls to US, Canada, and Mexico
• Unlimited SMS to the US and Canada (local US and Canadian numbers only)
• Auto-attendant (upgrade required)
• Call recording (upgrade required)
• CRM integrations (upgrade required)

Vonage pricing

Vonage’s price per user varies depending on your team’s size. The following pricing is for teams of one to four users:

• Mobile: $19.99 per user per month
• Premium: $29.99 per user per month to access phone menus, CRM integrations, and desk phone compatibility
• Advanced: $39.99 per user per month to access voicemail transcriptions, call groups, and on-demand call recordings

Vonage app download links

• iOS
• Android

9. Ooma: Best for reaching Mexico and Puerto Rico

Ooma is a second phone number app that’s built for small businesses. When you sign up, you can get one free toll-free number for your team or choose from a variety of local numbers. It also uniquely supports intercom calling and analog fax machine support (which you may never use unless you own a physical office).

The downside is that Ooma is pretty costly for the value it provides. For example, you can’t access texting, call recording, or voicemail transcriptions on the basic plan (only on higher tiers). You also need to upgrade to access Ooma’s desktop app. Otherwise, you have to work exclusively on your phone.

Key features of Ooma

• Unlimited calls to US, Canada, and Mexico
• Auto-attendant
• Call recording (upgrade required)
• Voicemail transcriptions (upgrade required)

Ooma pricing

• Office Essentials: $19.95 per user per month
• Office Pro: $24.95 per user per month to access Ooma’s desktop app, phone menus, call recording, voicemail transcriptions, Google and Office 365 integrations, and video meetings
• Office Pro Plus: $29.95 per user per month to access reporting, Salesforce and Microsoft Dynamics 365 integrations, and automatic call distribution

Ooma app download links

• iOS
• Android

10. Grasshopper: Best for phone number extensions

Grasshopper is another VoIP platform marketed toward small businesses. It differs from other second phone number apps by offering all of its features — including voicemail transcriptions and custom voicemail greetings — on every plan. This means you only pay for the number of phone numbers and extensions you need.

Since the basic plan only includes one phone number (and five with its highest-tier option), Grasshopper isn’t the best VoIP service for growing teams. It also lags when it comes to modern business phone features. For example, it doesn’t offer integrations, shared phone numbers, or call recording. While it offers local and toll-free numbers, you can only send MMS and group messages from local US numbers — and you can’t send SMS messages internationally or from a toll-free number to a Canadian number.

Key features of Grasshopper

• Unlimited calls in the US and Canada
• Call forwarding
• Voicemail transcriptions
• Custom voicemail greetings

Grasshopper pricing

Grasshopper is more difficult to scale due to their pricing structure. Compared to other business phone systems, they don’t charge by how many users you have except on their Solo plan. Instead, you pay for a set number of phone numbers and extensions.

• True Solo: $14 per month for one user, one phone number, and one extension
• Solo: $28 per month for one number and three extensions
• Partner: $46 per month for three numbers and six extensions
• Small business: $80 per month for five numbers and eight extensions
  
  *Additional numbers are $10 per month.

Grasshopper app download links

• iOS
• Android

11. JustCall: Best for international numbers

JustCall is a second phone number app that offers alternate phone numbers from 70 different countries. It’s also a platform designed especially for sales and support teams, since you can access call recording and ring groups on the basic plan.

But JustCall can get incredibly pricey, even for large teams. While the platform is free for inbound calls (if you have a local phone number), their platform charges by the minute for outbound calls. User reviews also report inconsistent call quality, even on a fast WiFi connection.

Key features of JustCall

• Unlimited incoming calls for local numbers
• Call recording
• Voicemail transcriptions
• Auto-attendant
• SMS automations
• Integrations with over 100 business apps

JustCall pricing

• Essentials: $19 per user per month
• Team: $29 per user per month (two user minimum)
• Premium: $49 per user per month (two user minimum)
• Custom: You’ll need to contact for details

JustCall app download links

• iOS
• Android

12. Hushed: Best for numbers with UK area codes

Hushed is a second phone number app with more than 300 phone number area codes in the UK, the US, and Canada. You can add multiple numbers to a single account and then connect with integrations such as Dropbox and Slack (although those are the only two integrations available).

You can’t get unlimited minutes or texts with Hushed unless you purchase the Unlimited subscription ($4.99 per month). You also have to pay extra for international calls, which adds another $2 to your monthly bill (for a total of $6.99 per month). Keep in mind past users report multiple bugs and glitches, even if they’ve paid for upgrades or rely on a decent internet connection.

Key features of Hushed

• Call forwarding
• Auto-replies
• Call routing
• Integrates with Slack and Dropbox only
• Voicemail greetings

Hushed pricing

• Prepaid Plans: Starts at $2.99 for pay-as-you-go bundled minutes and SMS credits
• Unlimited Subscriptions: $4.99 per month for unlimited talk, SMS and MMS in the US and Canada and the option to have one to three numbers for your phone
• Pay-As-You-Go International Plans: Starts at $6.99 to make international calls and texts

Hushed download links

• iOS 
• Android

13. TextNow: Best for plans with high-speed data

TextNow is a Canadian second phone number app offering unlimited free calling and texting in the USA and Canada. Since it works on PC, iPhone, Android, and iPad, you can switch between devices while working on the go. You can also pay $4.99 for a TextNow SIM card to unlock high-speed data (starting at $15.99 for 2GB of data).

But while TextNow may be free, it’s not built for small business owners. Basic features like voicemail transcriptions and call recording require upgrades. Plus, customer reviews complain of an overwhelming number of in-app ads. If you want to make calls without ads, you need to pay for an upgrade.

Key features of TextNow

• Free phone number (fees apply to premium numbers; you must unlock your iPhone or Android to use the mobile app)
• Voicemail transcription (requires upgrade)
• Incoming caller ID (requires upgrade)
• International calling and texting (requires the purchase of credits)

TextNow pricing

TextNow is free to use with ads. To make calls without WiFi, you first need to purchase a SIM card ($4.99). Then, you have to purchase data bundles (which cost as much as $29.99 for 5GB). 

If you’re using WiFi but want an ad-free experience, you have to pay an extra $9.99 per month.

TextNow download links

• iOS
• Android

14. 2ndLine: Best for Android users

2ndLine is a second phone number app created by the makers of TextNow. You can make free calls and texts in the US or Canada, but only if you live in those locations. You also can’t purchase roaming data like you can with TextNow — thankfully, you can still purchase credits to make international calls.

Similar to TextNow, 2ndLine displays in-app ads and requires in-app purchases for certain features (including call forwarding). Some users report that ads affect their call quality, while others worry about having their number deactivated. Unless you make at least one phone call a day with 2ndLine, the company may mark your account inactive and give your number away.

Key features of 2ndLine

• Unlimited free calls in the US and Canada
• Group messaging
• Call forwarding
• Voicemail recordings
• MMS supported

2ndLine pricing

You can download 2ndLine on your mobile phone for free. However, extra features most businesses need require an upgrade.

These include:

• International calling credits: $5 per bundle (minute amounts undisclosed)
• Premium phone numbers (determined by 2ndLine): $4.99 per year
• Remove ads for a limited time: $0.03 per 30 minutes
• Ad Free+ (removes ads permanently): $9.99 per month (+ tax)
• Call forwarding: Requires Ad Free+ ($9.99 per month + tax)
• Lock in your phone number (prevents losing your number to inactivity): Requires Ad Free+ ($9.99 per month + tax)

2ndLine download links

• iOS
• Android

Get started with OpenPhone, the best app for alternate phone numbers

Signing up for a second phone number app is a simple and affordable way to separate business and personal calls, which means you don’t need to answer clients when the workday is over. An alternate business phone number app also ensures your personal number stays private.

But while all second phone number apps offer these perks, they’re all equipped with different features and pricing plans.

OpenPhone offers high-value features — including shared phone numbers, integrations, and call recording — on every plan so you don’t need to rely on upgrades to get the features modern businesses need. Start your seven-day free trial of OpenPhone today.

FAQ

Every phone system is different, with some offering far more benefits than others. However, our answers to these frequently asked questions can help you explore how second phone number apps function at their core.