Loops

Loops is purpose-built for SaaS lifecycle email. The visual editor produces clean, brand-consistent emails without HTML wrangling. Audiences, events, and properties are first-class. Both transactional and marketing flows live in one product, which removes the usual two-tool stitching. The API and SDKs are straightforward, and the team has been responsive to developer feedback.

A SaaS product sends on behalf of its customers, so the deciding factors are tenant isolation, whether suppressions can be scoped rather than global, and whether support can answer why one specific account did not receive one specific email. Lifecycle automation and transactional sending usually need to coexist.

Against trial expiry notices, dunning, onboarding sequences, and per-tenant transactional mail, Loops covers event stream, the suppressions API, scheduling, and webhook coverage, and does not cover multi-tenant support and operating track record. Whether that gap matters depends on how central those are to the build.

• Multi-tenant: No
• Event stream: Yes
• Suppressions API: Yes
• Operating since: 2022
• Scheduling: Yes
• Best published rate per 1,000: Tiers not published in comparable form
• Deliverability: Strong and improving; engagement-driven sender reputation typical of marketing platforms with real human-curated content.
• Webhooks: Yes
• Starts at: $49/mo for 5,000 contacts

Strong and improving; engagement-driven sender reputation typical of marketing platforms with real human-curated content.

SaaS startups and indie product teams that want a single tool for transactional plus marketing.

Pure high-volume transactional, agencies needing per-client sub-accounts.