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Head to head · 2026

Duckie vs Letterbook

Pricing, free plans, ratings, features, pros and cons, side by side. Where one comes out ahead, we mark it.

Duckie

AI support agent that resolves B2B SaaS tickets end-to-end across Slack, Zendesk, and Intercom

4.2$725/mo

Visit Duckie (opens Duckie in a new tab)

Letterbook

AI-native customer support platform that drafts and resolves tickets using a company's own playbooks

3.8$50/mo

Visit Letterbook (opens Letterbook in a new tab)

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

  • Lower starting price

    Letterbook

    From $50/mo against from $725/mo

  • Free plan

    Tie

    Neither has one

  • Higher rating

    Duckie

    4.2 against 3.8

  • Same job?

    Yes

    Both are Customer Support tools

Side by side

Compared onDuckieLetterbook
Our rating4.2Better3.8
Starts at$725/mo$50/moBetter
Free planNoNo
CategoryCustomer SupportCustomer Support
PlansFrom $725/moFrom $50/mo
Key features
  • End-to-end ticket resolution across Slack, Zendesk, and Intercom
  • Resolution Memory that reuses validated answers for repeat issues
  • Action automation for refunds, order tracking, and account updates
  • Training on existing knowledge bases including Jira, Confluence, and Sentry
  • SOC 2 Type II certified with GDPR- and CCPA-compliant data handling
  • Playbook-driven auto-resolution for common support scenarios
  • Direct connections to inbox, product database, and Stripe
  • Contact-center-style review interface for AI-drafted replies
  • No per-resolution or usage-based surprise fees
  • Founder-defined scenarios instead of generic ticket-routing rules
Pros
  • Reports 71% ticket deflection and an 80% cut in resolution time for customers like Grid
  • Y Combinator-backed with a founding team focused on technical support workflows
  • Connects to an existing support stack instead of requiring a full platform migration
  • Flat monthly pricing avoids the per-resolution fee structures competitors use
  • Founders' prior product experience (scaling to 100,000 users) lends practical credibility
  • Playbook approach gives founders direct control over how AI responds to customers
Cons
  • Entry price of $725/month billed yearly prices out smaller support teams
  • Built for B2B SaaS specifically, a narrower fit than general-purpose helpdesk AI
  • Annual billing commitment required to access the advertised starting rate
  • No permanent free tier, only a 7-day trial
  • $50-$200 monthly range may still be a stretch for pre-revenue startups
  • Auto-resolution quality depends entirely on how well a team writes its playbooks
CompanyDuckie, founded 2023Letterbook, founded 2023

Prices come from each vendor's pricing page, last checked 20260718. Check the vendor before you buy.

FAQ

Questions people ask

Is Duckie better than Letterbook?

In our reviews Duckie scores 4.2 and Letterbook scores 3.8. The better pick depends on the job. Duckie: AI support agent that resolves B2B SaaS tickets end-to-end across Slack, Zendesk, and Intercom. Letterbook: AI-native customer support platform that drafts and resolves tickets using a company's own playbooks.

Which is cheaper, Duckie or Letterbook?

Letterbook has the lower starting price: from $725/mo for Duckie and from $50/mo for Letterbook.

Do Duckie and Letterbook have free plans?

Neither lists a free plan.

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