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Sideline vs Viber

Professional comparison and analysis to help you choose the right software solution for your needs.

Sideline icon
Sideline
Viber icon
Viber

Sideline vs Viber: The Verdict

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature Sideline Viber
Sugggest Score — —
Category Social & Communications Social & Communications
Pricing Subscription —

Product Overview

Sideline
Sideline

Description: Sideline is a phone app that provides users with a second phone number to keep their personal and work calls separate. It has features like call forwarding, voicemail transcripts, blocking contacts and more.

Type: software

Pricing: Subscription

Viber
Viber

Description: Viber is a free messaging and calling app for smartphones. It uses your phone number to connect you with people in your contacts and allows free calls, texts, photos and video messages over WiFi.

Type: software

Key Features Comparison

Sideline
Sideline Features
  • Second phone number
  • Call forwarding
  • Voicemail transcripts
  • Blocking contacts
  • Conference calling
  • Call recording
  • Visual voicemail
  • Do not disturb mode
Viber
Viber Features
  • Free calls
  • Free messages
  • Group chats
  • Stickers
  • Photo and video sharing
  • Voice messages
  • Location sharing

Pros & Cons Analysis

Sideline
Sideline
Pros
  • Keeps personal and work calls separate
  • Easy to set up and use
  • Affordable pricing
  • Good call quality
  • Useful features like voicemail transcripts
Cons
  • Mobile app only, no desktop app
  • Number porting can take time
  • Some features require premium plan
  • Limited international calling
Viber
Viber
Pros
  • Free calls and messages
  • Works across platforms
  • Good call quality
  • Fun stickers and emojis
  • Group chats
Cons
  • Contacts need to be using Viber too
  • Some features are paid only
  • No cloud sync between devices
  • Limited customization options

Pricing Comparison

Sideline
Sideline
  • Subscription
Viber
Viber
  • Not listed

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Learn More About Each Product

Sideline
Sideline
Reviews, pricing & alternatives →
Viber
Viber
Reviews, pricing & alternatives →

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