Softwr

Communication · head to head

Signal vs WhatsApp

Signal logo

Signal

Communication

Speak Freely

From
Free
Rated
-
Full reviewWebsite
WhatsApp logo

WhatsApp

Communication

Simple. Reliable. Private.

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Signal signal must be installed on a phone before the desktop app can be used, so there is no phone-free desktop-only account; WhatsApp consumer app messaging and calling is free, but the vendor notes carrier data charges may apply
  • They diverge on capability: Signal covers Disappearing messages, WhatsApp covers Text messaging.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Signal and WhatsApp actually diverge.

Attributes where Signal and WhatsApp differ
AttributeSignalWhatsApp
PlatformsWindows, Macos, Linux, Ios, AndroidWeb, Windows, Macos, Ios, Android
Founded20102009

Identical on both: starting price (Free), pricing model (free), free tier (Yes), user rating (Not yet rated), category (Communication).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Signal

  • Disappearing messages
  • Screen security
  • No data collection
  • Open source protocol
  • Signal Protocol
  • Desktop sync
  • Signal Protocol
  • Perfect forward secrecy

Only in WhatsApp

  • Text messaging
  • Status updates
  • Voice messages
  • Location sharing
  • WhatsApp Business API
  • Meta Business Suite
  • CRM integrations
  • Two-step verification

Both cover

  • End-to-end encryption
  • Group chats
  • Voice calls
  • Video calls
  • File sharing
  • Cloud deployment
  • Windows support
  • Macos support
  • Ios support
  • Android support

What people use each for

The jobs each tool is most often brought in to do.

Signal

  • Private messagingnot WhatsApp
  • Secure group communicationnot WhatsApp
  • Confidential conversationsnot WhatsApp
  • Journalism communicationnot WhatsApp
  • Family messagingnot WhatsApp

WhatsApp

  • Personal messagingnot Signal
  • Family communicationnot Signal
  • Business communicationnot Signal
  • Group coordinationnot Signal
  • International callingnot Signal

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Signal

  • Signal must be installed on a phone before the desktop app can be used, so there is no phone-free desktop-only account

WhatsApp

  • Consumer app messaging and calling is free, but the vendor notes carrier data charges may apply

Pricing, plan by plan

Signal

Free
  • FreeFree
    • End-to-end encrypted messaging
    • Voice and video calls
    • Group chats

WhatsApp

Free
  • FreeFree
    • Unlimited messaging
    • Voice and video calls
    • Group chats up to 1024 people

Which should you pick?

Choose Signal if

  • You need disappearing messages.
  • You want to start without paying.
  • You work on Windows, Macos, Linux, Ios, Android.
  • You also want screen security.
Signal review

Choose WhatsApp if

  • You need text messaging.
  • You want to start without paying.
  • You work on Web, Windows, Macos, Ios, Android.
  • You also want status updates.
WhatsApp review

Questions people ask

Is Signal or WhatsApp better?
Neither clearly leads. Signal starts at Free and WhatsApp at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Signal or WhatsApp?
Signal starts at Free and WhatsApp at Free.
Does Signal or WhatsApp run on more platforms?
Signal runs on Windows, Macos, Linux, Ios, Android. WhatsApp runs on Web, Windows, Macos, Ios, Android.
Can I use Signal for free?
Both have a free tier, so you can try either at no cost before committing.
What is Signal best used for?
Signal is most often used for private messaging, secure group communication, confidential conversations, journalism communication. Of those, private messaging and secure group communication are not what WhatsApp is typically brought in for.
What can Signal do that WhatsApp cannot?
Signal covers Disappearing messages, Screen security, No data collection, Open source protocol. WhatsApp covers Text messaging, Status updates, Voice messages, Location sharing. Both handle End-to-end encryption, Group chats, Voice calls, Video calls.

Answered from the vendors’ own pages

Signal: How much does Signal cost?

Signal is free for everyone. The messaging app is supported by grants and donations, not user fees, and is maintained by an independent nonprofit that is not tied to any major tech companies.

Source
WhatsApp: How much does WhatsApp cost for personal users?

WhatsApp messaging and calling are free for personal users. Data charges may apply depending on your mobile provider.

Source
Signal: Does Signal have ads?

No. Signal is ad-free and does not collect advertising revenue.

Source
WhatsApp: Does WhatsApp offer a business product?

Yes, WhatsApp Business exists to help companies reach customers, showcase products, and increase sales, though specific pricing for business messaging features is not detailed on the main website.

Source
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