Is Quo or Viber better?

Neither clearly leads. Quo starts at $15/month and Viber at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Quo or Viber?

Viber has a free tier; the other does not. Paid plans start at $15/month for Quo and Free for Viber.

Does Quo or Viber run on more platforms?

Quo 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. Quo starts at $15/month.

What is Quo best used for?

Quo is most often used for maintaining separate business phone numbers from personal devices, coordinating team communication through shared phone numbers, answering calls 24/7 with ai voice agents and summaries, recording and transcribing calls for sales and customer service. Of those, maintaining separate business phone numbers from personal devices and coordinating team communication through shared phone numbers are not what Viber is typically brought in for.

What can Quo do that Viber cannot?

Viber covers End to end encryption, Communities, Viber Business Messages, Free calling.

Communication · head to head

Quo vs Viber

Quo

Communication

Formerly OpenPhone

From: $15/month
Rated: -

Full review Website

Viber

Communication

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

From: Free
Rated: -

Full review Website

The short version

Only Viber has a free tier, so it costs nothing to try first.
Each has a real cost: Quo unlimited calling to US and Canadian numbers is subject to a Fair Usage Policy rather than being truly unlimited; 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 Quo and Viber actually diverge.

Attributes where Quo and Viber differ
Attribute	Quo	Viber
Starting price	$15/month	Free
Pricing model	subscription	Free to download, paid business messaging and out calls to landlines and mobiles
Free tier	No	Yes
Platforms	Web	iOS, 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 Quo

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.

Quo

Maintaining separate business phone numbers from personal devicesnot Viber
Coordinating team communication through shared phone numbersnot Viber
Answering calls 24/7 with AI voice agents and summariesnot Viber
Recording and transcribing calls for sales and customer servicenot Viber

Viber

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

Where each one falls short

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

Quo

Unlimited calling to US and Canadian numbers is subject to a Fair Usage Policy rather than being truly unlimited
Starter tier's $15/user annual rate requires prepaying annually; monthly billing costs $19/user, about 27% more
The Sona AI agent automation credits are capped at 1,000 free per plan before additional usage is billed

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

Quo

$15/month

Starter$19/month
- One phone number per user
- Unlimited US & Canadian calling/messaging
- Voicemail transcripts
Business$33/month
- Everything in Starter plus:
- AI call summaries and transcripts
- Group calling and call transfers
Scale$47/month
- Everything in Business plus:
- AI call tags
- Dedicated onboarding support

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 Quo if

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

Quo 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 Quo or Viber better?: Neither clearly leads. Quo starts at $15/month and Viber at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Quo or Viber?: Viber has a free tier; the other does not. Paid plans start at $15/month for Quo and Free for Viber.
Does Quo or Viber run on more platforms?: Quo 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. Quo starts at $15/month.
What is Quo best used for?: Quo is most often used for maintaining separate business phone numbers from personal devices, coordinating team communication through shared phone numbers, answering calls 24/7 with ai voice agents and summaries, recording and transcribing calls for sales and customer service. Of those, maintaining separate business phone numbers from personal devices and coordinating team communication through shared phone numbers are not what Viber is typically brought in for.
What can Quo do that Viber cannot?: Viber covers End to end encryption, Communities, Viber Business Messages, Free calling.

Answered from the vendors’ own pages

Quo: How much does Quo cost?

Quo pricing starts at $19/user/month for Starter, $33/user/month for Business, and $47/user/month for Scale. Annual billing provides discounts: $15, $23, and $35 per user/month respectively.

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.

Quo: Does Quo offer a free trial?

Yes, Quo offers a 7-day risk-free trial with full access to all features. The trial is cancellable anytime without requiring a credit card.

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.

Quo: What is included in the Sona AI agent?

All Quo plans include Sona AI agent with 1,000 free automation credits per month (approximately 10 calls). Add-on Sona AI credits range from $0-$199/month for 1,000-60,000 credits, with overage rates of $0.45-$1.00 per call.

Source

Viber: Who owns Viber?

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

Quo vs Viber

Quo

Viber

The short version

Where they differ

What each one covers

Only in Quo

Only in Viber

What people use each for

Quo

Viber

Where each one falls short

Quo

Viber

Pricing, plan by plan

Quo

Viber

Which should you pick?

Choose Quo if

Choose Viber if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Quo

More on Viber

Keep looking

Other head to heads