Softwr

Communication · head to head

Naver Works vs Slack

Naver Works logo

Naver Works

Communication

Korean and Japanese business messaging with mail, drive and approval workflows in one licence

From
Free
Rated
-
Full reviewWebsite
Slack logo

Slack

Communication

Where work happens

From
Free
Rated
-
Full reviewWebsite

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.; Slack 90-day message history limit on free plan results in important conversations disappearing
  • They diverge on capability: Naver Works covers Messaging with LINE reach, Slack covers Channels.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Naver Works and Slack actually diverge.

Attributes where Naver Works and Slack differ
AttributeNaver WorksSlack
Pricing modelPer user per monthUnknown
PlatformsWeb, iOS, Android, Windows, macOSWeb, iOS, Android, macOS, Windows, Linux
FoundedUnknown2009

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 Slack

  • Channels
  • Direct messaging
  • Voice & video calls
  • Screen sharing
  • File sharing
  • Search
  • Workflow builder
  • Slack Connect

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 Slack
  • A Korean company that needs electronic approval workflows in the local style rather than a generic chat tool with a form bolted onnot Slack
  • The Seoul or Tokyo office of a multinational that needs a local-language collaboration tool alongside head office Microsoft 365not Slack
  • A small team of under 30 people that wants free business messaging with a real upgrade path rather than a message history capnot Slack

Slack

  • Team communicationnot Naver Works
  • Project coordinationnot Naver Works
  • Customer supportnot Naver Works
  • Remote worknot Naver Works
  • Cross-functional collaborationnot 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.

Slack

  • 90-day message history limit on free plan results in important conversations disappearing
  • Per-user pricing becomes expensive quickly for larger teams
  • Notification overload with 78% of employees feeling overwhelmed by notifications
  • Mobile app performance issues including lag and slow syncing
  • Huddles limited to 50 people and cannot be recorded
  • Requires dedicated video conferencing service for formal meetings and webinars

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

Slack

Free

No published plan breakdown. See the Slack review.

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.
Naver Works review

Choose Slack if

  • You need channels.
  • You want to start without paying.
  • You work on Web, iOS, Android, macOS, Windows, Linux.
  • You also want direct messaging.
Slack review

Questions people ask

Is Naver Works or Slack better?
Neither clearly leads. Naver Works starts at Free and Slack at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Naver Works or Slack?
Naver Works starts at Free and Slack at Free.
Does Naver Works or Slack run on more platforms?
Naver Works runs on Web, iOS, Android, Windows, macOS. Slack runs on Web, iOS, Android, macOS, Windows, Linux.
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 Slack is typically brought in for.
What can Naver Works do that Slack cannot?
Naver Works covers Messaging with LINE reach, Business mail, Drive, Electronic approval. Slack covers Channels, Direct messaging, Voice & video calls, Screen sharing.

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.

Slack: Does Slack have a free plan?

Yes, Slack offers a free plan indefinitely with no credit card required. Free users get 90-day message history, up to 10 app integrations, and 1:1 huddles.

Source
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.

Slack: What are Slack's pricing plans?

Slack offers Free, Pro ($7.25/user/month with annual billing), Business+ ($12.50/user/month), and Enterprise Grid (custom pricing). Monthly billing costs approximately 20% more than annual.

Source
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.

Slack: Does Slack support offline use?

Slack is a cloud-based platform and does not support robust offline work. Internet connectivity is required to access messages and collaborate.

Source
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.

Slack: What integrations does Slack support?

Slack integrates with 43+ apps on average per team, including Google Drive, ChatGPT, Vercel, Asana, GitHub, and many others through their app marketplace.

Source
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