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ICQ vs Sideline

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

ICQ icon
ICQ
Sideline icon
Sideline

ICQ vs Sideline: The Verdict

⚡ Summary:

ICQ: ICQ is an instant messaging client and software that was first released in 1996. It became popular in the late 1990s as one of the first multi-platform instant messaging clients. Key features of ICQ include one-on-one and group text chats, voice and video calls, offline messaging, and file transfers.

Sideline: 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.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

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

Product Overview

ICQ
ICQ

Description: ICQ is an instant messaging client and software that was first released in 1996. It became popular in the late 1990s as one of the first multi-platform instant messaging clients. Key features of ICQ include one-on-one and group text chats, voice and video calls, offline messaging, and file transfers.

Type: software

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

Key Features Comparison

ICQ
ICQ Features
  • Instant messaging
  • Voice and video calls
  • Group chats
  • File transfers
  • Offline messaging
Sideline
Sideline Features
  • Second phone number
  • Call forwarding
  • Voicemail transcripts
  • Blocking contacts
  • Conference calling
  • Call recording
  • Visual voicemail
  • Do not disturb mode

Pros & Cons Analysis

ICQ
ICQ
Pros
  • Cross-platform availability
  • Easy to use interface
  • Large user base
  • Free basic version available
Cons
  • Limited features in free version
  • Privacy concerns
  • Ads in free version
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

Pricing Comparison

ICQ
ICQ
  • Not listed
Sideline
Sideline
  • Subscription

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Learn More About Each Product

ICQ
ICQ
Reviews, pricing & alternatives →
Sideline
Sideline
Reviews, pricing & alternatives →

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