Customer support decision

Crisp

A competent developer can assemble a useful replacement (widget + shared inbox + KB + LLM) in about a week using existing open-source components and hosted LLMs; enterprise integrations, advanced workflow builders, and the vendor's ecosystem would be costly to replicate.

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You pay

$45/mo

$540/yr

Read off the official pricing page.

You’d pay instead

$50one-off30 h to build

$120/mo8 h/mo upkeep

On cash alone, building overtakes the subscription at 3 seats.

Open-source builds that already do this

Every project below is open source and already does this job today. Fork one, self-host it, or take the parts you need - the build prompt further down assumes an empty file, and this is the shortcut past that. Licences differ; check the one on each card before you ship. All Crisp alternatives, with the arithmetic →

What a replacement has to do

  • Provide a web chat widget that sends messages to a centralized inbox, ingest product docs/FAQs into a searchable knowledge store, call a hosted LLM API to generate agent replies (with context and KB grounding), persist conversations and metadata in a database, and expose a basic UI for agents to view/edit conversations and approve/edit AI replies.

What it still won’t have

  • Built-in omnichannel integrations (WhatsApp, Instagram, Messenger, etc.)
  • No-code visual workflow/automation builder
  • Included AI credits and prebuilt AI Agent templates
  • Enterprise features like SLAs, dedicated onboarding, enhanced rate limits, and white‑labeling

What remains hard

  • Brand trustTrusted by 10,000 companies of all sizes
Read the build prompt

First-year cost

Keep paying

Paying is—cheaper in year one.

On cash alone, building overtakes the subscription at 3 seats.

Paid seatsseats

Money you would actually spend

Keep paying
—

Subscription price × seats × 12

Build it
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AI build —APIs + hosting —

Time you would spend

—

—

What you would spend

What we assumed

The verdict above measures whether you could build it. This one is only about money.

Runnable build prompt

Not run yet
Build a minimal AI customer support workspace using Node.js (Express) + React, Postgres, and Redis: include an embeddable web chat widget, server endpoints to receive/send messages, Postgres schemas for conversations/users/messages, a KB ingestion script (crawl site + PDF import) that stores embeddings in a vector DB (e.g., Milvus or Postgres pgvector), an LLM integration module that retrieves top-K passages and calls a hosted LLM API for grounded replies, and an agent web UI showing a shared inbox with AI-suggested replies and the ability to edit/approve. Out of scope: multi-channel integrations (WhatsApp/Instagram), enterprise SLA features, white-labeling. Include error handling, rate-limit protection for LLM calls, basic unit tests for API endpoints, and deployment scripts (Dockerfiles + docker-compose).
How we checked4 sources · 2/3 runs agreed · evidence score 89

How the score was reached

  • Build verdict base78
  • An open-source build was found+5
  • 4 cited sources+3
  • Price verified on pricing page+3
  • Evidence score89

The base comes from the verdict. Everything under it is a check that either happened or did not, and each one is a fact frozen in this record rather than a judgement made at render time - so the same evidence always produces the same number.

How scoring works →

Cited sources · 4

Every page the run actually retrieved.

Integrity checks

What held up, and what did not.

✓ Price read off the page! 2 of 3 runs agreed; the verdict is the majority✓ Citations limited to fetched pages! 1 moat quoted from the page