Softwr

Communication · head to head

Rocket.Chat vs Viber

Rocket.Chat logo

Rocket.Chat

Communication

Deployment flexibility and compliance across regulatory frameworks

From
On request
Rated
-
Full reviewWebsite
Viber logo

Viber

Communication

Messaging app with its strongest user base in Eastern Europe and the Philippines, owned by Japans Rakuten

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Viber has a free tier, so it costs nothing to try first.
  • Each has a real cost: Rocket.Chat all enterprise plan tiers use custom quote-based pricing; Viber viber has limited relevance outside its strong regions, so building a communication strategy around it in North America or most of Western Europe reaches almost nobody.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Rocket.Chat and Viber actually diverge.

Attributes where Rocket.Chat and Viber differ
AttributeRocket.ChatViber
Starting priceOn requestFree
Pricing modelquoteFree to download, paid business messaging and out calls to landlines and mobiles
Free tierNoYes
PlatformsWebiOS, Android, Windows, macOS, Web

Identical on both: 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 Rocket.Chat

Nothing recorded that Viber does not also cover.

Only in Viber

  • End to end encryption
  • Communities
  • Viber Business Messages
  • Free calling
  • Self-destructing messages
  • Rakuten integration

What people use each for

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

Rocket.Chat

  • Deploying HIPAA-compliant messaging for healthcare team communicationnot Viber
  • Meeting data sovereignty requirements for government and defense agenciesnot Viber
  • Federating secure channels with external partners without shared infrastructurenot Viber
  • Maintaining FINRA and MiFID II compliance for financial servicesnot Viber
  • Supporting classified network communications in air-gapped environmentsnot Viber

Viber

  • A business communicating with customers in Eastern Europe or the Philippines where Viber, not WhatsApp, is the default appnot Rocket.Chat
  • An individual making cheap international calls to family in a Viber-strong market before switching entirely to data callingnot Rocket.Chat
  • A brand running a Community channel to reach an established Viber audience in a specific countrynot Rocket.Chat
  • Someone wanting end to end encrypted chat on by default without configuring anythingnot Rocket.Chat

Where each one falls short

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

Rocket.Chat

  • All enterprise plan tiers use custom quote-based pricing
  • No published pricing for Commercial, Government, or Defense tiers
  • Starter plan link provided but pricing details not included on pricing page

Viber

  • Viber has limited relevance outside its strong regions, so building a communication strategy around it in North America or most of Western Europe reaches almost nobody.
  • Ownership by Rakuten ties the app to a commerce and points ecosystem, and account data can be linked to Rakuten services in markets where that integration is active.
  • Business Messages pricing is metered per message, so a company sending high volumes of promotional content can find costs rise quickly compared with a flat fee model.
  • Viber has lost share even in some of its historically strong markets to Telegram and WhatsApp, so its regional dominance is not guaranteed to persist.
  • The desktop client depends on the phone app remaining active and connected, which is a limitation for anyone wanting a fully independent desktop messenger.

Pricing, plan by plan

Rocket.Chat

On request

No published plan breakdown. See the Rocket.Chat review.

Viber

Free
  • ViberFree
    • Free messaging and calling between Viber users
    • Viber Out charges per minute for calls to non-Viber phone numbers
    • Business Messages priced per message sent to businesses on a metered basis

Which should you pick?

Choose Rocket.Chat if

Nothing in the data separates Rocket.Chat from Viber on the points above - pick on price and on how each one feels to use.

Rocket.Chat review

Choose Viber if

  • You need end to end encryption.
  • You want to start without paying.
  • You work on iOS, Android, Windows, macOS, Web.
  • You also want communities.
Viber review

Questions people ask

Is Rocket.Chat or Viber better?
Neither clearly leads. Rocket.Chat starts at On request and Viber at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Rocket.Chat or Viber?
Viber has a free tier; the other does not. Paid plans start at On request for Rocket.Chat and Free for Viber.
Does Rocket.Chat or Viber run on more platforms?
Rocket.Chat runs on Web. Viber runs on iOS, Android, Windows, macOS, Web.
Can I use Viber for free?
Yes. Viber has a free tier, so you can try it without paying. Rocket.Chat starts at On request.
What is Rocket.Chat best used for?
Rocket.Chat is most often used for deploying hipaa-compliant messaging for healthcare team communication, meeting data sovereignty requirements for government and defense agencies, federating secure channels with external partners without shared infrastructure, maintaining finra and mifid ii compliance for financial services. Of those, deploying hipaa-compliant messaging for healthcare team communication and meeting data sovereignty requirements for government and defense agencies are not what Viber is typically brought in for.
What can Rocket.Chat do that Viber cannot?
Viber covers End to end encryption, Communities, Viber Business Messages, Free calling.

Answered from the vendors’ own pages

Rocket.Chat: How much does Rocket.Chat cost?

Rocket.Chat does not publish pricing. Commercial, Government, and Defense plans require contacting sales for custom quotes. A Starter plan is available for technical evaluation and small businesses but pricing is not shown.

Source
Viber: Is Viber end to end encrypted?

Yes, by default for one-to-one and group chats, unlike Telegram where it is opt-in for secret chats only.

Rocket.Chat: What is the pricing model for Rocket.Chat?

Enterprise plans use a custom quote model. Pricing is determined based on deployment type, regulatory requirements, and specific organizational needs.

Source
Viber: Is Viber popular in the United States?

No, it has a comparatively small footprint there. Its real strength is in specific markets including parts of Eastern Europe and the Philippines.

Rocket.Chat: Is there a free plan available?

A Starter plan is mentioned for technical evaluation and small businesses, but no pricing or feature details are published on the pricing page.

Source
Viber: Who owns Viber?

Rakuten Group, a Japanese e-commerce and internet services company, which bought Viber in 2014.

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