Communication · head to head
Naver Works vs Viber
Naver Works
Communication
Korean and Japanese business messaging with mail, drive and approval workflows in one licence
- From
- Free
- Rated
- -
Viber
Communication
Messaging app with its strongest user base in Eastern Europe and the Philippines, owned by Japans Rakuten
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Naver Works the integration ecosystem is small by comparison with Slack or Microsoft Teams, so any workflow that depends on a long tail of third-party apps will need custom development against the Works API.; 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.
- They diverge on capability: Naver Works covers Messaging with LINE reach, Viber covers End to end encryption.
- Prices and features above were last checked on 1 September 2026.
Where they differ
Only the attributes on which Naver Works and Viber actually diverge.
| Attribute | Naver Works | Viber |
|---|---|---|
| Pricing model | Per user per month | Free to download, paid business messaging and out calls to landlines and mobiles |
| Platforms | Web, iOS, Android, Windows, macOS | iOS, Android, Windows, macOS, Web |
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 Naver Works
- Messaging with LINE reach
- Business mail
- Drive
- Electronic approval
- Calendar and board
- Clova Note
- Admin and audit
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.
Naver Works
- A Japanese retailer whose customer service happens over LINE and needs those conversations inside an auditable corporate systemnot Viber
- A Korean company that needs electronic approval workflows in the local style rather than a generic chat tool with a form bolted onnot Viber
- The Seoul or Tokyo office of a multinational that needs a local-language collaboration tool alongside head office Microsoft 365not Viber
- A small team of under 30 people that wants free business messaging with a real upgrade path rather than a message history capnot Viber
Viber
- A business communicating with customers in Eastern Europe or the Philippines where Viber, not WhatsApp, is the default appnot Naver Works
- An individual making cheap international calls to family in a Viber-strong market before switching entirely to data callingnot Naver Works
- A brand running a Community channel to reach an established Viber audience in a specific countrynot Naver Works
- Someone wanting end to end encrypted chat on by default without configuring anythingnot Naver Works
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Naver Works
- The integration ecosystem is small by comparison with Slack or Microsoft Teams, so any workflow that depends on a long tail of third-party apps will need custom development against the Works API.
- Documentation, support and most community knowledge are in Korean and Japanese; an English-speaking administrator will spend a lot of time in machine translation.
- Pricing is published in Korean won and the buying experience assumes a Korean or Japanese business entity, which complicates procurement for a company incorporated elsewhere.
- The Lite tier omits business email, so the plan that looks cheap is messaging only and the realistic entry point for most companies is Standard at more than double the price.
- Clova Note transcription and several AI features are sold as separate line items rather than bundled, so the quoted per-user figure understates what a team using the full suite actually pays.
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
Naver Works
Free- FreeFree
- Up to 30 members
- 5GB shared storage
- Limited administration and audit features
- Lite$3000/month
- Unlimited members
- 10GB storage per user
- Messaging, calendar, board and address book
- Standard$7000/month
- 100GB storage per user
- Business email included
- Fuller administration and audit controls
- Standard Plus$11000/month
- 1TB drive per user
- Larger mail quota
- Monthly billing is 13,000 KRW
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 Naver Works if
- You need messaging with line reach.
- You want to start without paying.
- You work on Web, iOS, Android, Windows, macOS.
- You also want business mail.
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.
Questions people ask
- Is Naver Works or Viber better?
- Neither clearly leads. Naver Works starts at Free and Viber at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Naver Works or Viber?
- Naver Works starts at Free and Viber at Free.
- Does Naver Works or Viber run on more platforms?
- Naver Works runs on Web, iOS, Android, Windows, macOS. Viber runs on iOS, Android, Windows, macOS, Web.
- Can I use Naver Works for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Naver Works best used for?
- Naver Works is most often used for a japanese retailer whose customer service happens over line and needs those conversations inside an auditable corporate system, a korean company that needs electronic approval workflows in the local style rather than a generic chat tool with a form bolted on, the seoul or tokyo office of a multinational that needs a local-language collaboration tool alongside head office microsoft 365, a small team of under 30 people that wants free business messaging with a real upgrade path rather than a message history cap. Of those, a japanese retailer whose customer service happens over line and needs those conversations inside an auditable corporate system and a korean company that needs electronic approval workflows in the local style rather than a generic chat tool with a form bolted on are not what Viber is typically brought in for.
- What can Naver Works do that Viber cannot?
- Naver Works covers Messaging with LINE reach, Business mail, Drive, Electronic approval. Viber covers End to end encryption, Communities, Viber Business Messages, Free calling.
Answered from the vendors’ own pages
Naver Works: Can Naver Works really message ordinary LINE users?
Yes. External connection with consumer LINE accounts is the feature that most differentiates it, and it is the main reason it sells in Japan.
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.
Naver Works: Is Naver Works the same as LINE WORKS?
They are the same lineage under Works Mobile, marketed as Naver Works in Korea and LINE WORKS in Japan and other markets. Feature sets and pricing pages differ by region.
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.
Naver Works: Is there a genuinely free tier?
Yes, capped at 30 members with 5GB of shared storage and reduced administration features. It does not expire.
Viber: Who owns Viber?
Rakuten Group, a Japanese e-commerce and internet services company, which bought Viber in 2014.
Naver Works: Does it work for a company outside Korea and Japan?
Technically yes, but you are buying a regional product. Expect Korean or Japanese support, local billing and few connectors to Western SaaS.
Related pages
More on Naver Works
Other head to heads
- Naver Works vs Slack
- Naver Works vs Microsoft Teams
- Naver Works vs LINE WORKS
- Naver Works vs Kakao Work
- Naver Works vs Line
- Naver Works vs Webex by Cisco
- Naver Works vs Flock
- Naver Works vs Chatwork
- Naver Works vs Loom
- Naver Works vs KakaoTalk
- Naver Works vs WeChat
- Naver Works vs Textline
- Naver Works vs Twist
- Naver Works vs Vowel
- Naver Works vs WhatsApp
- Naver Works vs Novu
- Naver Works vs Messenger
- Naver Works vs Disciple
- Naver Works vs Gupshup
- Naver Works vs Chanty
- Naver Works vs Sessions
- Naver Works vs Signal
- Naver Works vs Telegram
- Naver Works vs Google Chat
- Viber vs Slack
- Viber vs Microsoft Teams
- Viber vs LINE WORKS
- Viber vs Kakao Work
- Viber vs Line
- Viber vs Webex by Cisco
- Viber vs Flock
- Viber vs Chatwork
- Viber vs Loom
- Viber vs KakaoTalk
- Viber vs WeChat
- Viber vs Textline
- Viber vs Twist
- Viber vs Vowel
- Viber vs WhatsApp
- Viber vs Novu
- Viber vs Messenger
- Viber vs Disciple
- Viber vs Gupshup
- Viber vs Chanty
- Viber vs Sessions
- Viber vs Signal
- Viber vs Telegram
- Viber vs Google Chat