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QKSMS vs Sideline

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

QKSMS icon
QKSMS
Sideline icon
Sideline

QKSMS vs Sideline: The Verdict

⚡ Summary:

QKSMS: QKSMS is an open source messaging app for Android that aims to provide a clean and intuitive user interface. It supports SMS, MMS and RCS with a range of customization options.

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 QKSMS Sideline
Sugggest Score
Category Social & Communications Social & Communications
Pricing Open Source Subscription

Product Overview

QKSMS
QKSMS

Description: QKSMS is an open source messaging app for Android that aims to provide a clean and intuitive user interface. It supports SMS, MMS and RCS with a range of customization options.

Type: software

Pricing: Open Source

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

QKSMS
QKSMS Features
  • Customizable themes
  • Schedule messages
  • Block numbers
  • Pin conversations
  • MMS support
  • RCS support
  • GIF support
  • Auto-night mode
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

QKSMS
QKSMS

Pros

  • Open source
  • Free
  • Customizable
  • Lightweight
  • No ads
  • Active development

Cons

  • Lacks some features of proprietary apps
  • RCS support can be buggy
  • Small user base
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

QKSMS
QKSMS
  • Open Source
Sideline
Sideline
  • Subscription

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