Overview

Rating:
4.50 +1
(628)
Version:
1.4.29
Last updated: 2026-09-14
Ranking
#67,446 ▼ 15
Overall

Features & Capabilities

Sideline provides a convenient second phone number for personal privacy, business communication, and work-life balance. Get a verified USA number, make outbound calls to USA and Canada, receive calls from international numbers, and keep your primary number private.

Use Wi-Fi or cellular data to send and receive SMS, send faxes worldwide, access synced contacts, block unwanted callers, and manage your phone number without an extra SIM card or device. The app includes light and dark modes, flexible number management, and daily outbound calling minutes through eligible subscriptions. SMS features are limited to USA numbers, while outbound calls are available to USA and Canada numbers.

User Growth & Download Statistics

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
Second Phone Number & Texting LLC
Apple Apps Store
https://apps.apple.com/us/app/sideline-2nd-phone-number/id6443417799
Website:
https://second-phone.com/

User Reviews

Users widely praise Sideline for privacy, professional call management, and affordable international calls, with travel-friendly reliability. However, repeated payment issues—such as not receiving a paid-for number and duplicate charges—and limited support contact are the main recurring complaints. Overall, it’s strong for privacy-conscious professionals who need a second, affordable line, but checkout and refund processes should be improved.
Pros
  • Strong privacy and security: keeps personal information private and separates work/personal numbers.
  • Professional call management: dedicated lines help manage clients and present a polished image.
  • Affordable international calling: low-cost rates make staying connected abroad easy.
  • Reliable audio quality and connection: clear calls even in noisy environments and across devices.
  • All-in-one device: centralizes work and personal lines, simplifying switching between them.
Cons
  • Payment processing issues: paying for a number but not receiving it.
  • Payment-related errors: being charged twice or stuck in a pay loop.
  • Customer support accessibility: difficulties contacting support or resolving payment problems.
Recent reviews
A second phone line on your iPhone doesn't have to mean buying another SIM card or carrying a second device. This app lets you manage work and personal calls separately while keeping your real number hidden, and its low-cost calling to the US and Canada makes staying connected both simple and affordable.
by Ho*****, 2026-07-16

If you want to keep your personal and professional calls separated on one iPhone, this app is a game changer that cuts out the cost of extra SIMs and hardware. It keeps your private number private while offering dirt-cheap rates for calling the US and Canada, making dual-line communication completely effortless.
by It*****, 2026-07-12
View all user reviews ›

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