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All industries · head to head

Quo vs Slack

Quo logo

Quo

All industries

Formerly OpenPhone

From
Free
Rated
-
Full reviewWebsite
Slack logo

Slack

All industries

Where work happens

From
Free
Rated
-
Full reviewWebsite

The short version

  • 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; Slack 90-day message history limit on free plan results in important conversations disappearing

Where they differ

Only the attributes on which Quo and Slack actually diverge.

Attributes where Quo and Slack differ
AttributeQuoSlack
Pricing modelfreemiumUnknown
PlatformsWebWeb, iOS, Android, macOS, Windows, Linux
CategoryUnknownAll industries
FoundedUnknown2009

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

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 Slack does not also cover.

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.

Quo

No use cases recorded yet. See the Quo review.

Slack

  • Team communicationnot Quo
  • Project coordinationnot Quo
  • Customer supportnot Quo
  • Remote worknot Quo
  • Cross-functional collaborationnot 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

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

Quo

Free

No published plan breakdown. See the Quo review.

Slack

Free

No published plan breakdown. See the Slack review.

Which should you pick?

Choose Quo if

  • You want to start without paying.
Quo 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 Quo or Slack better?
Neither clearly leads. Quo 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, Quo or Slack?
Quo starts at Free and Slack at Free.
Does Quo or Slack run on more platforms?
Quo runs on Web. Slack runs on Web, iOS, Android, macOS, Windows, Linux.
Can I use Quo for free?
Both have a free tier, so you can try either at no cost before committing.
What can Quo do that Slack cannot?
Slack covers Channels, Direct messaging, Voice & video calls, Screen sharing.

Answered from the vendors’ own pages

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
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
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
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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Related pages

More on Quo

More on Slack

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