---
title: Loops
slug: loops
url: "https://toolweight.com/options/loops"
homepage: "https://loops.so"
categories: email-sending-apis
last_verified: 2026-06-05
license: CC-BY-4.0
---

# Loops

> Lifecycle and marketing email for SaaS, priced on contacts rather than sends.

Loops is built for the email a product sends around its users rather than to them one at a time: onboarding sequences, announcements and lifecycle campaigns, with a transactional API attached. The editor is deliberately opinionated and setup is fast. Billing on contacts rather than volume makes it cheap for frequent sends to a stable audience and expensive for a large dormant list.

## Identity

|  |  |
| --- | --- |
| Name | Loops |
| Company | Loops |
| One-liner | Lifecycle and marketing email for SaaS, priced on contacts rather than sends. |
| Site | https://loops.so |
| Docs | https://loops.so/docs |
| Founded | 2022 |
| Funding | Seed |
| Brand | https://toolweight.com/vendors/Loops |
| Compared in | 1 |

## Where it is compared

### [Email APIs](https://toolweight.com/compare/email-sending-apis)
Ranked **#10 of 13** on default weights.
| Field | Value | Confidence | Verified | Source | Note |
| --- | --- | --- | --- | --- | --- |
| Time to first send | 15 min | Inferred | - | - | Self-serve with no approval queue; domain verification is the only gate. |
| Product scope | marketing-first | Inferred | - | - | Lifecycle and campaign email first, with a transactional API attached. |
| Inbound parsing | ○ | Inferred | - | - | - |
| Event webhooks | delivered, opened, clicked, bounced, complained, unsubscribed | Inferred | - | - | - |
| Hosted templates | visual-editor | Inferred | - | - | Deliberately opinionated editor, fast, and not very configurable. |
| React Email / MJML | - | Inferred | - | - | Templates live in Loops, not in your repo. That is the point of the product. |
| Log retention | - | Unknown | - | - | Retention window not verified for this pass. |
| Throughput ceiling | - | Unknown | - | - | No published figure. |
| Multi-domain sending | ○ | Inferred | - | - | One sending domain per workspace. |
| Data residency | us | Inferred | - | - | - |
| Shared pool quality | 4 | Inferred | - | - | Small, SaaS-focused customer base keeps the pool comparatively clean. |
| IP warmup | ○ | Inferred | - | - | No dedicated IP product. |
| DKIM/DMARC friction | 2 | Inferred | - | - | - |
| BIMI | - | Unknown | - | - | - |
| Suppression list | ● | Inferred | - | - | Unsubscribes and bounces are handled at the contact level. |
| Bounce handling | ● | Inferred | - | - | - |
| Price / 1k emails | - | Vendor-claimed | 2026-06-05 | https://loops.so/pricing | Not applicable: Loops bills on stored contacts, not on messages sent. |
| Free tier | - | Inferred | - | - | The free plan is contact-capped rather than email-capped. |
| Dedicated IP | - | Inferred | - | - | Not offered, shared pool only. |
| Pricing model | contact-based | Inferred | - | - | - |
| MCP server | - | Unknown | - | - | - |
| llms.txt docs | ● | Inferred | - | - | Mintlify-hosted docs, which publish an llms.txt index automatically. |
| Funding | seed | Community-reported | - | - | - |
| Positioning | "Email for modern SaaS." Sells taste and speed of setup rather than deliverability engineering. | Inferred | - | - | - |
| GA year | 2023 | Inferred | - | - | - |

**Verdict.** The best-looking way to send lifecycle email, and the wrong tool for high-volume transactional. Contact-based pricing is a bet that your list stays engaged; if you accumulate dormant signups, the bill grows for mail you never send.

## Alternatives

- [AhaSend](https://toolweight.com/options/ahasend), Small indie transactional API competing on price and instant signup.
- [Amazon SES](https://toolweight.com/options/amazon-ses), The cheapest way to send email at scale, and the least finished product.
- [Brevo](https://toolweight.com/options/brevo), EU-hosted marketing platform with a competent transactional API attached.
- [MailerSend](https://toolweight.com/options/mailersend), Transactional sibling of MailerLite, bootstrapped and cheap at mid volume.
- [Mailgun](https://toolweight.com/options/mailgun), Long-running transactional API with strong routing and inbound handling.
- [Mailtrap](https://toolweight.com/options/mailtrap), Email testing sandbox that grew a production sending product.
- [Plunk](https://toolweight.com/options/plunk), Open-source email console you self-host on top of your own AWS SES account.
- [Postmark](https://toolweight.com/options/postmark), Transactional-only sender with the best-policed shared IP pool in the category.
- [Resend](https://toolweight.com/options/resend), Developer-first email API built around React Email components.
- [Scaleway TEM](https://toolweight.com/options/scaleway-tem), EU-sovereign transactional email from Scaleway, deliberately minimal.
- [SendGrid](https://toolweight.com/options/sendgrid), The incumbent: enormous scale, enormous shared pool, everything bolted on.
- [SparkPost](https://toolweight.com/options/sparkpost), High-volume sender with deep analytics, now folded into Bird's platform.

## Licence and attribution

Data from toolweight (https://toolweight.com), licensed CC-BY-4.0.

- Licence: [CC-BY-4.0](https://creativecommons.org/licenses/by/4.0/)
- Canonical HTML: https://toolweight.com/options/loops
- Machine-readable: https://toolweight.com/options/loops.md · https://toolweight.com/api/v1 · https://toolweight.com/mcp
- toolweight takes no affiliate revenue and sells no placements. Corrections: https://toolweight.com/suggest