Softwr

Communication · head to head

Lark vs Signal

Lark logo

Lark

Communication

The super app for team collaboration

From
Free
Rated
-
Full reviewWebsite
Signal logo

Signal

Communication

Speak Freely

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Lark vendor website positions as best-priced but actual costs not verified; Signal signal must be installed on a phone before the desktop app can be used, so there is no phone-free desktop-only account
  • They diverge on capability: Lark covers Team messaging, Signal covers End-to-end encryption.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Lark and Signal actually diverge.

Attributes where Lark and Signal differ
AttributeLarkSignal
Pricing modelsubscriptionfree
PlatformsWeb, Windows, Macos, Linux, Ios, AndroidWindows, Macos, Linux, Ios, Android
Founded20192010

Identical on both: starting price (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 Lark

  • Team messaging
  • Video conferencing
  • Collaborative docs
  • Cloud storage
  • Calendar
  • Jira
  • GitHub
  • Salesforce

Only in Signal

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

Both cover

  • Cloud deployment
  • Windows support
  • Macos support
  • Linux support
  • Ios support
  • Android support

What people use each for

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

Lark

  • Team collaborationnot Signal
  • All-in-one workspacenot Signal
  • Communication platformnot Signal
  • Project managementnot Signal
  • Document collaborationnot Signal

Signal

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

Where each one falls short

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

Lark

  • Vendor website positions as best-priced but actual costs not verified

Signal

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

Pricing, plan by plan

Lark

Free
  • StarterFree
    • Up to 50 users
    • 100GB storage
    • Unlimited messaging
  • Pro$12/month
    • Unlimited users
    • 1TB storage per user
    • 24-hour meetings
  • Enterprise$20/month
    • SSO/SAML
    • eDiscovery
    • Custom retention

Signal

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

Which should you pick?

Choose Lark if

  • You need team messaging.
  • You want to start without paying.
  • You work on Web, Windows, Macos, Linux, Ios, Android.
  • You also want video conferencing.
Lark review

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

Questions people ask

Is Lark or Signal better?
Neither clearly leads. Lark starts at Free and Signal at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Lark or Signal?
Lark starts at Free and Signal at Free.
Does Lark or Signal run on more platforms?
Lark runs on Web, Windows, Macos, Linux, Ios, Android. Signal runs on Windows, Macos, Linux, Ios, Android.
Can I use Lark for free?
Both have a free tier, so you can try either at no cost before committing.
What is Lark best used for?
Lark is most often used for team collaboration, all-in-one workspace, communication platform, project management. Of those, team collaboration and all-in-one workspace are not what Signal is typically brought in for.
What can Lark do that Signal cannot?
Lark covers Team messaging, Video conferencing, Collaborative docs, Cloud storage. Signal covers End-to-end encryption, Disappearing messages, Screen security, Group chats. Both handle Cloud deployment, Windows support, Macos support, Linux support.

Answered from the vendors’ own pages

Lark: What pricing plans does Lark offer?

Lark advertises itself as a best-priced all-in-one solution with multiple pricing plans, but specific pricing tiers, costs, and features are not publicly detailed on accessible pages.

Source
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
Signal: Does Signal have ads?

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

Source
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