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Software · head to head

Slack vs Xero

Slack logo

Slack

Software

Where work happens

From
Free
Rated
-
Full reviewWebsite
Xero logo

Xero

Software

Beautiful accounting software

From
$13/month
Rated
-
Full reviewWebsite

The short version

  • Only Slack has a free tier, so it costs nothing to try first.
  • Each has a real cost: Slack 90-day message history limit on free plan results in important conversations disappearing; Xero the Early plan caps you at 20 invoices and 5 bills per month, and the invoice limit counts both approving and sending
  • They diverge on capability: Slack covers Channels, Xero covers Bank reconciliation.

Where they differ

Only the attributes on which Slack and Xero actually diverge.

Attributes where Slack and Xero differ
AttributeSlackXero
Starting priceFree$13/month
Pricing modelUnknownsubscription
Free tierYesNo
PlatformsWeb, iOS, Android, macOS, Windows, LinuxWeb, Ios, Android, Api
Founded20092006

Identical on both: user rating (Not yet rated), category (Unknown).

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 Slack

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

Only in Xero

  • Bank reconciliation
  • Invoicing
  • Bill payment
  • Expense claims
  • Financial reporting
  • Inventory tracking
  • Project tracking
  • Mobile apps

Both cover

  • SOC2
  • ISO27001

What people use each for

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

Slack

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

Xero

  • Small business bookkeeping, invoicing and bank reconciliationnot Slack
  • Bill payment and purchase order managementnot Slack
  • Sharing books with an accountant or bookkeepernot Slack

Where each one falls short

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

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

Xero

  • The Early plan caps you at 20 invoices and 5 bills per month, and the invoice limit counts both approving and sending
  • Invoices created by connected app partners count against the Early plan invoice limit
  • Multiple currencies, project time and cost tracking, employee expense and mileage claims and industry benchmarking are restricted to the top Established plan at $90 per month
  • Cash flow forecasting is capped at 30 days on Early and 60 days on Growing, with 180 days only on Established
  • Payroll is not included in any plan and costs an extra $36 a month plus $6 per employee or contractor through Gusto
  • Inventory Plus is a paid optional add-on rather than part of any plan
  • The advertised 90% off applies only to the first 6 months, after which the regular $25, $55 or $90 monthly price auto-renews
  • The introductory discount excludes add-ons, usage charges and payment fees
  • Payment fees apply to online invoice payments and to bill payments other than standard domestic ACH, and are billed on top of the subscription
  • Subscriptions are billed monthly with no annual payment option, and after upgrading you must wait one month before downgrading to a cheaper plan
  • Xero states subscription prices are increasing from October 1, 2026

Pricing, plan by plan

Slack

Free

No published plan breakdown. See the Slack review.

Xero

$13/month
  • Early$13/month
    • Send 20 invoices
    • Enter 5 bills
    • Reconcile bank transactions
  • Growing$37/month
    • Unlimited invoices & bills
    • Bulk reconcile transactions
    • Short-term cash flow
  • Established$70/month
    • Everything in Growing
    • Use multiple currencies
    • Track projects

Which should you pick?

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

Choose Xero if

  • You need bank reconciliation.
  • You work on Web, Ios, Android, Api.
  • You also want invoicing.
Xero review

Questions people ask

Is Slack or Xero better?
Neither clearly leads. Slack starts at Free and Xero at $13/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Slack or Xero?
Slack has a free tier; the other does not. Paid plans start at Free for Slack and $13/month for Xero.
Does Slack or Xero run on more platforms?
Slack runs on Web, iOS, Android, macOS, Windows, Linux. Xero runs on Web, Ios, Android, Api.
Can I use Slack for free?
Yes. Slack has a free tier, so you can try it without paying. Xero starts at $13/month.
What is Slack best used for?
Slack is most often used for team communication, project coordination, customer support, remote work. Of those, team communication and project coordination are not what Xero is typically brought in for.
What can Slack do that Xero cannot?
Slack covers Channels, Direct messaging, Voice & video calls, Screen sharing. Xero covers Bank reconciliation, Invoicing, Bill payment, Expense claims. Both handle SOC2, ISO27001.

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

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