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Signal vs Twilio

Signal logo

Signal

All industries

Speak Freely

From
Free
Rated
-
Full reviewWebsite
Twilio logo

Twilio

Telecommunications

Cloud communications platform for SMS, voice, and video

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; Twilio pricing becomes unpredictable with carrier fees and additional charges for compliance, recordings, and phone number rentals
  • They diverge on capability: Signal covers End-to-end encryption, Twilio covers SMS messaging.

Where they differ

Only the attributes on which Signal and Twilio actually diverge.

Attributes where Signal and Twilio differ
AttributeSignalTwilio
Pricing modelfreeUnknown
PlatformsWindows, Macos, Linux, Ios, AndroidWeb, APIs, Python, JavaScript, Ruby, Java, PHP, C#
CategoryAll industriesTelecommunications
Founded20102008

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

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

  • End-to-end encryption
  • Disappearing messages
  • Screen security
  • Group chats
  • Video calls
  • File sharing
  • No data collection
  • Open source protocol

Only in Twilio

  • SMS messaging
  • Video conferencing
  • Programmable communication
  • Slack
  • Salesforce
  • HubSpot
  • Zapier
  • Web support

Both cover

  • Voice calls

What people use each for

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

Signal

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

Twilio

  • Customer engagementnot Signal
  • Lead generationnot Signal
  • Customer supportnot Signal
  • Sales automationnot 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

Twilio

  • Pricing becomes unpredictable with carrier fees and additional charges for compliance, recordings, and phone number rentals
  • Phone number rentals are required for every number used, with carrier fees varying by region and billed separately
  • Dashboard is not optimized for mobile use and logs are difficult to access

Pricing, plan by plan

Signal

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

Twilio

Free
  • Pay-as-You-Go$undefined/mo
    • Usage-based pricing
    • No monthly minimum
    • SMS, voice, video, messaging

Which should you pick?

Choose Signal if

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

Choose Twilio if

  • You need sms messaging.
  • You want to start without paying.
  • You work on Web, APIs, Python, JavaScript, Ruby, Java, PHP, C#.
  • You also want video conferencing.
Twilio review

Questions people ask

Is Signal or Twilio better?
Neither clearly leads. Signal starts at Free and Twilio at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Signal or Twilio?
Signal starts at Free and Twilio at Free.
Does Signal or Twilio run on more platforms?
Signal runs on Windows, Macos, Linux, Ios, Android. Twilio runs on Web, APIs, Python, JavaScript, Ruby, Java, PHP, C#.
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 Twilio is typically brought in for.
What can Signal do that Twilio cannot?
Signal covers End-to-end encryption, Disappearing messages, Screen security, Group chats. Twilio covers SMS messaging, Video conferencing, Programmable communication, Slack. Both handle Voice calls.

Answered from the vendors’ own pages

Twilio: What is Twilio's pricing model?

Twilio uses pay-as-you-go usage-based pricing with no monthly minimums or contracts. SMS costs $0.0083 per US message, voice calls cost $0.014 per minute, phone numbers cost $1.15 per month.

Source
Twilio: Does Twilio offer a free tier?

Yes, Twilio offers a free trial indefinitely with no credit card required for limited usage, plus a 7-14 day free trial period on paid plans.

Source
Twilio: What communication channels does Twilio support?

Twilio supports SMS, WhatsApp, RCS, MMS for messaging; Voice API and SIP Trunking for voice; Email via Twilio SendGrid; Video API; and Chat via Conversations API.

Source
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Related pages

More on Signal

More on Twilio

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