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Capacity vs Slimchat

Capacity logo

Capacity

Live Chat

AI-powered customer service automation platform

From
On request
Rated
-
Full reviewWebsite
S

Slimchat

Live Chat

Lightweight live chat solution for websites

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Slimchat has a free tier, so it costs nothing to try first.
  • Each has a real cost: Capacity two-part pricing, an annual platform fee plus usage, so the bill is not knowable from the tier alone; Slimchat the vendor's own homepage as captured by the Internet Archive on 19 August 2018 (via Novosi, LLC) shows SlimChat was still pre-release at that date, offering an email signup for '3 months FREE' with an 'Expected release: summer 2018' notice and a $15 incentive to test a tour version; combined with the live site now serving a mismatched Squarespace certificate, this indicates the product likely never reached a stable commercial release
  • They diverge on capability: Capacity covers AI chatbot, Slimchat covers Live chat widget.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Capacity and Slimchat actually diverge.

Attributes where Capacity and Slimchat differ
AttributeCapacitySlimchat
Starting priceOn requestFree
Pricing modelsubscriptionfreemium
Free tierNoYes
PlatformsWeb, Mobile, Chat widgets, APIWeb, Mobile responsive

Identical on both: user rating (Not yet rated), category (Live Chat), founded (2016).

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 Capacity

  • AI chatbot
  • Knowledge management
  • Multi-channel support
  • Analytics
  • Salesforce
  • Zendesk
  • Slack
  • ServiceNow

Only in Slimchat

  • Live chat widget
  • Lightweight design
  • Fast loading
  • Visitor information
  • Zapier
  • API
  • Webhooks
  • Mobile responsive support

Both cover

  • Web support

What people use each for

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

Capacity

  • Knowledge base and helpdesk deflectionnot Slimchat
  • AI agents answering across chat, voice, email and SMSnot Slimchat
  • Real-time assistance for human agents on a callnot Slimchat
  • Automating multi-step support workflowsnot Slimchat
  • Regulated support environments needing the HIPAA packagenot Slimchat

Slimchat

  • Customer engagementnot Capacity
  • Lead generationnot Capacity
  • Customer supportnot Capacity
  • Sales automationnot Capacity

Where each one falls short

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

Capacity

  • Two-part pricing, an annual platform fee plus usage, so the bill is not knowable from the tier alone
  • AI usage is metered by channel: per response on chat and email, per minute on voice and per message on SMS
  • Agent Assist and conversation intelligence are charged per hour of agent time on top
  • Live chat, agent assist and conversation intelligence require the Pro tier
  • The HIPAA package and advanced workflows are Enterprise only
  • No prices are published for any tier

Slimchat

  • The vendor's own homepage as captured by the Internet Archive on 19 August 2018 (via Novosi, LLC) shows SlimChat was still pre-release at that date, offering an email signup for '3 months FREE' with an 'Expected release: summer 2018' notice and a $15 incentive to test a tour version; combined with the live site now serving a mismatched Squarespace certificate, this indicates the product likely never reached a stable commercial release

Pricing, plan by plan

Capacity

On request
  • Starter$125/month
    • AI chatbot
    • Up to 50 articles
  • Professional$300/month
    • Unlimited articles
    • Advanced AI
  • Enterprise$undefined/month
    • Full customization
    • Dedicated support

Slimchat

Free
  • FreeFree
    • Live chat
    • 1 agent
    • Basic features
  • Pro$20/month
    • Multiple agents
    • Advanced options
  • Business$50/month
    • Unlimited features
    • Priority support

Which should you pick?

Choose Capacity if

  • You need ai chatbot.
  • You work on Web, Mobile, Chat widgets, API.
  • You also want knowledge management.
Capacity review

Choose Slimchat if

  • You need live chat widget.
  • You want to start without paying.
  • You work on Web, Mobile responsive.
  • You also want lightweight design.
Slimchat review

Questions people ask

Is Capacity or Slimchat better?
Neither clearly leads. Capacity starts at On request and Slimchat at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Capacity or Slimchat?
Slimchat has a free tier; the other does not. Paid plans start at On request for Capacity and Free for Slimchat.
Does Capacity or Slimchat run on more platforms?
Capacity runs on Web, Mobile, Chat widgets, API. Slimchat runs on Web, Mobile responsive.
Can I use Slimchat for free?
Yes. Slimchat has a free tier, so you can try it without paying. Capacity starts at On request.
What is Capacity best used for?
Capacity is most often used for knowledge base and helpdesk deflection, ai agents answering across chat, voice, email and sms, real-time assistance for human agents on a call, automating multi-step support workflows. Of those, knowledge base and helpdesk deflection and ai agents answering across chat, voice, email and sms are not what Slimchat is typically brought in for.
What can Capacity do that Slimchat cannot?
Capacity covers AI chatbot, Knowledge management, Multi-channel support, Analytics. Slimchat covers Live chat widget, Lightweight design, Fast loading, Visitor information. Both handle Web support.

Answered from the vendors’ own pages

Capacity: How much does Capacity cost?

Capacity does not publish pricing on their website. The company uses a tiered platform model with usage-based add-ons, stating customers pay a platform fee plus usage-based pricing for AI Agents. Interested customers must contact their sales team or use the ROI calculator for custom quotes.

Source
Capacity: What is Capacity's pricing model?

Capacity charges a platform fee for three tiers (Core, Pro, Enterprise) plus usage-based fees for Chat Agents (per response), Voice Agents (per minute), Email Agents (per response), SMS Agents (per message), and Agent Assist features (per hour of agent time).

Source
Capacity: What are Capacity's available tiers?

Capacity offers Core tier (essential tools to launch AI support), Pro tier (most popular, with live chat and conversation intelligence), and Enterprise tier (full suite with advanced compliance, HIPAA compliance available). Pricing requires contacting sales.

Source
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