---
title: Loops
slug: loops
url: "https://toolweight.com/tools/loops"
homepage: "https://loops.so"
categories: email-sending-apis
last_verified: 2026-11-07
dataset_version: 0738be72
license: CC-BY-4.0
---

# Loops

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

- Built for lifecycle email: onboarding sequences, announcements, campaigns, with a transactional API attached
- Deliberately opinionated editor and fast setup
- Bills on contacts, not volume: cheap for frequent sends to a stable audience
- 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 |
| Compared in | 1 |

## Where it is compared

### [Email APIs](https://toolweight.com/compare/email-sending-apis)
Ranked **#9 of 13** on default weights.
| Field | Value | Confidence | Verified | Source | Note | Permalink |
| --- | --- | --- | --- | --- | --- | --- |
| Time to first send | 15min | Inferred | - | - | Self-serve with no approval queue; domain verification is the only gate. | https://toolweight.com/compare/email-sending-apis#loops--time_to_first_send |
| Product scope | marketing-first | Inferred | - | - | Lifecycle and campaign email first, with a transactional API attached. | https://toolweight.com/compare/email-sending-apis#loops--product_scope |
| Inbound parsing | ○ | Inferred | - | - | - | https://toolweight.com/compare/email-sending-apis#loops--inbound_parsing |
| Event webhooks | delivered, opened, clicked, bounced, complained, unsubscribed | Inferred | - | - | - | https://toolweight.com/compare/email-sending-apis#loops--event_webhooks |
| Hosted templates | visual-editor | Inferred | - | - | Deliberately opinionated editor, fast, and not very configurable. | https://toolweight.com/compare/email-sending-apis#loops--hosted_templates |
| React Email / MJML | - | Inferred | - | - | Templates live in Loops, not in your repo. That is the point of the product. | https://toolweight.com/compare/email-sending-apis#loops--react_email_mjml |
| Log retention | - | Unknown | - | - | Retention window not verified for this pass. | https://toolweight.com/compare/email-sending-apis#loops--log_retention |
| Throughput ceiling | 36,000 emails/hr | Vendor-claimed | 2026-11-07 | https://loops.so/pricing | Free account default of 10 emails/sec; paid plans 1,000/sec. | https://toolweight.com/compare/email-sending-apis#loops--throughput_ceiling |
| Multi-domain sending | ○ | Inferred | - | - | One sending domain per workspace. | https://toolweight.com/compare/email-sending-apis#loops--multi_domain |
| Data residency | us | Inferred | - | - | - | https://toolweight.com/compare/email-sending-apis#loops--data_residency |
| Shared pool quality | 4 | Inferred | - | - | Small, SaaS-focused customer base keeps the pool comparatively clean. | https://toolweight.com/compare/email-sending-apis#loops--shared_pool_quality |
| IP warmup | ○ | Inferred | - | - | No dedicated IP product. | https://toolweight.com/compare/email-sending-apis#loops--ip_warmup |
| DKIM/DMARC friction | 2 | Inferred | - | - | - | https://toolweight.com/compare/email-sending-apis#loops--dkim_dmarc_friction |
| BIMI | - | Unknown | - | - | - | https://toolweight.com/compare/email-sending-apis#loops--bimi_support |
| Suppression list | ● | Inferred | - | - | Unsubscribes and bounces are handled at the contact level. | https://toolweight.com/compare/email-sending-apis#loops--suppression_management |
| Bounce handling | ● | Inferred | - | - | - | https://toolweight.com/compare/email-sending-apis#loops--bounce_complaint_handling |
| Price / 1k emails | - | Vendor-claimed | 2026-06-05 | https://loops.so/pricing | Not applicable: Loops bills on stored contacts, not on messages sent. | https://toolweight.com/compare/email-sending-apis#loops--price_per_1k |
| Free tier | 4,000 emails/mo | Vendor-claimed | 2026-11-06 | https://loops.so/pricing | - | https://toolweight.com/compare/email-sending-apis#loops--free_tier |
| Dedicated IP | - | Inferred | - | - | Not offered, shared pool only. | https://toolweight.com/compare/email-sending-apis#loops--dedicated_ip_cost |
| Pricing model | contact-based | Inferred | - | - | - | https://toolweight.com/compare/email-sending-apis#loops--pricing_model |
| MCP server | ● | Vendor-claimed | 2026-11-07 | https://loops.so/docs/api-reference/intro | - | https://toolweight.com/compare/email-sending-apis#loops--mcp_server |
| llms.txt docs | ● | Inferred | - | - | Mintlify-hosted docs, which publish an llms.txt index automatically. | https://toolweight.com/compare/email-sending-apis#loops--llms_txt_docs |
| Funding | seed | Community-reported | - | - | - | https://toolweight.com/compare/email-sending-apis#loops--funding_stage |
| Positioning | "Email for modern SaaS." Sells taste and speed of setup rather than deliverability engineering. | Inferred | - | - | - | https://toolweight.com/compare/email-sending-apis#loops--positioning |
| GA year | 2023 | Inferred | - | - | - | https://toolweight.com/compare/email-sending-apis#loops--ga_year |

**Verdict.** The best-looking way to send lifecycle email, wrong for high-volume transactional, and a bet your list stays engaged.

## Alternatives

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

## Logo & brand colours

SVG files: https://toolweight.com/teams/loops/logo.svg and https://toolweight.com/teams/loops/mono.svg. JSON: https://toolweight.com/api/v1/brands/loops.

| Hex | oklch |
| --- | --- |
| #fc5200 | oklch(66.8% 0.217 38.3) |

## 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/tools/loops
- Machine-readable: https://toolweight.com/tools/loops.md · https://toolweight.com/api/v1 · https://toolweight.com/mcp
- Toolweight takes no affiliate revenue and sells no placements.