Best Second Phone Number App Free in 2026: 9 Apps Compared

Google Voice is our pick for most people who want a free second number, because the personal version gives you a US number for calls, texts, and voicemail without a monthly fee. You can forward calls to your existing phone, set separate voicemail greetings, and block spam calls from the app. That separation is useful for selling items, job hunting, or dating, where you want contact without sharing your main number. The catch is business use. Google Voice for business is a paid add-on to Workspace, and personal numbers are not meant as a full business phone system, so small teams should look at OpenPhone or Sideline instead.

TextNow suits budget users who mainly need a free number for calls and texts over Wi-Fi or data. You pick a number, then call and text from the app, which makes it a handy spare line for online selling or sign-ups. The free tier is supported by ads, and you need to keep the number active to avoid losing it. That is the main trade-off. If you need a stable business number, a paid plan or a business app will be safer, but for a free personal second line, TextNow is hard to beat on price.

Burner is built around disposable numbers, which is useful when you want a number for a short project, a sale, or a trip, and then want it gone. You can create a number, use it for calls and texts, and delete it when the project ends, which limits later spam and unwanted contact. That control is its main strength. The weakness is cost over time. Burner is not free beyond a trial, and keeping many long-term numbers gets expensive, so use it for temporary needs and pick a different app for a permanent work line.

Hushed fits people who need a private number outside the US, or who want both short-term and long-term numbers in one app. You can choose an area code, manage several numbers, and forward calls when you are offline. That flexibility suits travellers, freelancers with clients abroad, and anyone who wants a clear boundary between personal and public contact. The catch is pricing complexity. Plans use credits or subscriptions depending on the number type, so read the current plan page and check what is included for calls, texts, and renewals before you buy.

Sideline gives you a second number that feels like a normal work line on the phone you already carry. You can set a different ringtone for work calls, keep work texts separate, and use auto-reply and voicemail transcription. That simplicity suits solo workers and small teams who do not need a full call centre system. The limitation is that it is a paid service after the trial, and US business texting now requires registration steps that can delay texting to customers. Test calling first, then confirm texting setup for your use case.

OpenPhone is the strongest pick in this list for a small business that needs a shared number, because several team members can answer the same line and see the same message history. It includes calling, texting, voicemail, and integrations with common business tools, and it works across phone and desktop. That shared inbox is a real advantage over a personal second-number app when customers expect a reply from anyone on the team. The trade-off is price. It is charged per user, so a solo user who only needs a simple line may find Sideline or Google Voice cheaper.

2ndLine is a useful free or low-cost option for a personal second number, especially for users who want a separate line for calls and texts without a monthly commitment. Setup is quick, and you can choose a number for your area. The free tier is the draw, but it also brings limits, so check what is included for calls, texts, and voicemail before you depend on it for work. For a permanent business line with shared access, a paid business app will be more reliable, but for personal separation, 2ndLine is a fair choice.

Line2 suits solo business owners who want a professional second line with calling, texting, and voicemail in one app. It works on phone and desktop, so you can take business calls from a computer as well as from your mobile, and the separate voicemail keeps work messages apart from personal ones. That desktop option is useful for people who spend much of the day at a computer. The weakness is that the free period is only a trial, and long-term use is paid, so compare its monthly cost with Sideline and OpenPhone before you commit.

MySudo takes a different approach, giving you several separate identities, each with its own number and, on some plans, email and browsing tools. That suits freelancers who juggle clients, sellers who manage several listings, and anyone who wants strict separation between parts of their life. You can keep one Sudo for work, one for selling, and one for personal projects, and pause or delete a Sudo when it is no longer needed. The catch is cost and availability. Full use is paid, and some features are limited outside the US, so check the current plan for your country before you sign up.