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Head to head · 2026

SendHQ vs Stammer

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

SendHQ

Observable email infrastructure for product teams and AI agents

3.6$9/mo

Visit SendHQ (opens SendHQ in a new tab)

Stammer

White-label chat and voice agents an agency resells under its own brand and domain

4.0$197/mo

Visit Stammer (opens Stammer 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

    SendHQ

    From $9/mo against from $197/mo

  • Free plan

    Tie

    Neither has one

  • Higher rating

    Stammer

    3.6 against 4.0

  • Same job?

    Yes

    Both are AI Infrastructure & Agent Tooling tools

Side by side

Compared onSendHQStammer
Our rating3.64.0Better
Starts at$9/moBetter$197/mo
Free planNoNo
CategoryAI Infrastructure & Agent ToolingAI Infrastructure & Agent Tooling
PlansFrom $9/moFrom $197/mo
Key features
  • Developer API for sending and receiving transactional email
  • Separate inbox and sending identity per product, service or AI agent
  • Domain verification plus delivery and bounce tracking
  • Inbound mail routing and scoped API keys
  • Starter plan of 10,000 emails and 15 domains for $9 a month
  • Chat agents for web, Instagram, Facebook and WhatsApp
  • Voice agents for inbound and outbound calls
  • Fully white-labelled dashboard on a custom domain
  • No-code setup with live chat human handoff
  • Usage priced per message and per voice minute
Pros
  • Giving each AI agent its own inbox and identity suits agent-driven products
  • Low entry price for real sending volume
  • Inbound and outbound share one workspace
  • Usage priced separately, so resellers can set margin knowingly
  • Chat and voice in one white-label platform
  • 35,000 live agents behind it
Cons
  • No free tier
  • Marketing email costs $10 a month more than transactional
  • Accounts with sustained high bounce or complaint rates are restricted
  • Per-message costs on stronger models add up quickly at volume
  • Client relationships depend on a supplier the clients cannot see
  • Reselling means owning support for someone else's software
CompanyWavicleStammer AI

Prices come from each vendor's pricing page, last checked 20260921. Check the vendor before you buy.

FAQ

Questions people ask

Is SendHQ better than Stammer?

In our reviews SendHQ scores 3.6 and Stammer scores 4.0. The better pick depends on the job. SendHQ: Observable email infrastructure for product teams and AI agents. Stammer: White-label chat and voice agents an agency resells under its own brand and domain.

Which is cheaper, SendHQ or Stammer?

SendHQ has the lower starting price: from $9/mo for SendHQ and from $197/mo for Stammer.

Do SendHQ and Stammer have free plans?

Neither lists a free plan.

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