Unitpost vs Loops
Loops is a modern, design-led email platform aimed at SaaS companies, focused on marketing sequences and lifecycle email. Unitpost covers transactional and marketing email in one product with unlimited contacts on paid plans and a free tier of 3,000 emails a month. Across 10 compared capabilities, Unitpost leads on 7 and Loops leads on 2.
Which should you choose?
Choose Loops if
- Marketing sequences are your main use case and transactional is secondary
- You want the most polished editor experience available and will pay by contact for it
- Your team is primarily non-technical
Choose Unitpost if
- Transactional email is a first-class concern, not an afterthought
- You want unlimited contacts rather than contact-count pricing
- You need an SMTP relay, inbound email, or webhook infrastructure
- You want a full REST API with SDKs and an MCP server
What Loops does well
Stated plainly, because a comparison that pretends otherwise is not worth reading.
- Excellent design and editor polish — genuinely pleasant to use
- Loops and sequences aimed squarely at SaaS lifecycle email
- A simple mental model that non-technical teammates pick up quickly
Pricing and free tier
- Unitpost
- 3,000 emails/month free, 100/day, no credit card
- On paid plans your monthly price is a sending allowance you spend at your tier's rate, and it refreshes every month. Marketing and unlimited contacts are included rather than billed as add-ons.
- Loops
- Limited free plan by contact count
- Priced by contact count, in the marketing-tool tradition.
Loops pricing and free-tier details last verified 2026-07. Providers change these often — check their pricing page before making a decision.
Feature comparison
| Capability | Unitpost | Loops |
|---|---|---|
| Transactional email | First-class: idempotency keys, batch sends, scheduling, cancel and reschedule, delivery events per message | Supported, but the product centres on marketing sequences |
| Contact pricing | Unlimited contacts on paid plans | Priced by contact count |
| Marketing sequences and automations | Campaigns ship today; automations are behind a flag and not launched | Loops and sequences are the core product |
| Editor polish | Hybrid visual and code editor over one document | Widely considered best-in-class |
| SMTP relay | Offered | Not offered |
| Inbound email | Receiving with a read API for messages and attachments | Not offered |
| Idempotency keys on send | Idempotency-Key on sends, 24-hour dedupe window | — |
| Webhook secret rotation without dropped deliveries | svix-compatible HMAC-SHA256 with a 24-hour dual-signing rotation grace | Rotation replaces the secret immediately |
| Hybrid template editing | Visual drag-and-drop and React/TSX code mode over one shared document — the same @unitpost/email library renders both | Varies |
| One-key import from Loops | Migration Assistant moves contacts, segments, topics, templates, domains, suppressions, and webhooks in about 4 minutes with a read-only key | n/a |
How do I migrate from Loops?
Paste a read-only Loops API key into the Migration Assistant and it previews everything that would carry over — contacts, segments, topics, templates, domains, suppressions, and webhooks. Nothing is written until you accept, and Loops keeps sending the whole time, so there is no downtime. It takes about four minutes.
Two things do not carry over: sending domains must re-verify with freshly generated DKIM keys, and webhook signing secrets are regenerated. Dynamic segments import as a static snapshot of their members.
Frequently asked questions
Is Unitpost a Loops alternative?
For the email-sending half, yes, and the Migration Assistant imports from Loops directly. The honest caveat is automations: Loops' sequences are its core product, and ours are still behind a feature flag. If lifecycle sequences are the reason you use Loops, we are not a replacement yet.
Which is better for a SaaS product?
It depends which email matters more. If your volume is lifecycle and marketing sequences, Loops is purpose-built for that and the editor is better than ours. If you also send receipts, password resets, and alerts — and want idempotency, per-message delivery events, signed webhooks, and an SMTP relay — those are first-class here and secondary there.
Switching from Loops?
Try it on the free tier first
3,000 emails a month, no credit card. Verify a domain, send a test, and preview the migration before you move anything.