Softwr

Communication · head to head

Slack vs Textline

Slack logo

Slack

Communication

Where work happens

From
Free
Rated
-
Full reviewWebsite
Textline logo

Textline

Communication

Business texting for teams

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Slack 90-day message history limit on free plan results in important conversations disappearing; Textline enterprise plan requires custom quote and demo booking
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Slack and Textline actually diverge.

Attributes where Slack and Textline differ
AttributeSlackTextline
Pricing modelUnknownfreemium
PlatformsWeb, iOS, Android, macOS, Windows, LinuxWeb
Founded2009Unknown

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 Slack

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

Only in Textline

Nothing recorded that Slack does not also cover.

What people use each for

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

Slack

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

Textline

  • Responding to customer support tickets via SMS from a unified inboxnot Slack
  • Sending appointment reminders and conducting follow-ups via text messagenot Slack
  • Coordinating field teams across job sites with time-sensitive text updatesnot Slack
  • Running SMS campaigns to promote sales and capture leads with high engagementnot Slack
  • Managing HIPAA-compliant texting for healthcare patient communicationsnot 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

Textline

  • Enterprise plan requires custom quote and demo booking
  • Additional message credits cost $0.03 each (purchased in advance)
  • Backup credits cost $0.04 each with minimum 250-credit purchase

Pricing, plan by plan

Slack

Free

No published plan breakdown. See the Slack review.

Textline

Free
  • EssentialsFree
    • 600 message credits per month
    • 3 agents included
    • 3 years conversation history
  • ProFree
    • 2000 message credits per month
    • 5 agents included
    • Unlimited conversation history
  • Enterprise$null/month
    • Custom pricing
    • All Pro features
    • Flexible implementation

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 Textline if

  • You want to start without paying.
Textline review

Questions people ask

Is Slack or Textline better?
Neither clearly leads. Slack starts at Free and Textline at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Slack or Textline?
Slack starts at Free and Textline at Free.
Does Slack or Textline run on more platforms?
Slack runs on Web, iOS, Android, macOS, Windows, Linux. Textline runs on Web.
Can I use Slack for free?
Both have a free tier, so you can try either at no cost before committing.
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 Textline is typically brought in for.
What can Slack do that Textline 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
Textline: Can I use Textline for free?

Yes, Essentials and Pro tiers are free to get started, with no credit card required. Essentials includes 600 message credits and 3 agents monthly. Pro includes 2000 credits and 5 agents. Enterprise requires a custom quote.

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
Textline: How much do extra message credits cost?

Additional message credits cost $0.03 per credit. Backup credits are available at $0.04 each with a minimum purchase of 250 credits.

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
Textline: What are the costs for phone number registration?

10DLC registration costs $15 per campaign per month via The Campaign Registry. Toll-free numbers do not have a monthly registration fee.

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
Share

Related pages

More on Slack

More on Textline

Keep looking

Other head to heads