Loops
Modern lifecycle and broadcast email for SaaS.
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.
Growth work lives or dies on targeting and measurement. What matters is whether behavioral triggers can be built without engineering time, whether the event stream supports attribution past the open, and whether deliverability holds when broadcast volume shares a reputation with product email.
Against behavior-triggered journeys, broadcasts, and winback campaigns measured on revenue, Loops covers scheduling, event stream, and the suppressions API, and does not cover operating track record and multi-tenant support. Whether that gap matters depends on how central those are to the build.
- Scheduling: Yes
- Event stream: Yes
- Deliverability: Strong and improving; engagement-driven sender reputation typical of marketing platforms with real human-curated content.
- Operating since: 2022
- Suppressions API: Yes
- Best published rate per 1,000: Tiers not published in comparable form
- Multi-tenant: No
- Free tier: 1,000 contacts and 4,000 sends/mo on the Free plan
- 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.
- › Single product for transactional plus lifecycle plus broadcast
- › Visual editor that produces well-rendered output without messy HTML
- › Audiences and event-based loops feel native to product use cases
- › React Email support for code-driven templates when needed
- › Genuine focus on SaaS as a category
- › No SMTP relay
- › Subscriber-based pricing means cost scales with contact list, not email volume
- › Younger company than SendGrid or Mailchimp
- › Less suited to high-volume pure transactional flows
Features at a glance
| API | Yes |
| SMTP | No |
| SDKs | node, python, go, ruby, php |
| Webhooks | Yes |
| Templates | rich |
| React Email | Yes |
| Batch send | Yes |
| Scheduled send | Yes |
| Suppressions | Yes |
| Multi-tenant | No |
| Inbound parsing | No |
| Event stream | Yes |
| Idempotency keys | No |
| Dedicated IP | No |
Appears in rankings
13 Best Transactional Email APIs (2026), Tested
Unified transactional plus lifecycle in one product. The transactional API is clean and the visual editor reaches design teams without HTML wrangling. Strong fit for SaaS that does not want to stitch two vendors together.
7 Best Email Tools for Developer Experience (2026), Tested
API and SDKs are straightforward and the unified product reduces tool sprawl.
11 Best Email Tools With Permanent Free Tiers (2026), Tested
Unlimited emails on the Free plan within a 1,000-contact ceiling. Different model: optimal when your contact list grows slowly but your volume is high.
5 Best Email Tools for React Email (2026), Tested
React Email support inside a unified product.
10 Best Lifecycle Email Tools (2026), Tested
Purpose-built for SaaS lifecycle. Visual editor plus event-based loops, and a unified product that includes transactional.
6 Best Developer-Focused Newsletter Platforms (2026), Tested
Broadcast plus audience features inside a unified SaaS-friendly product.
9 Best Email Tools for SaaS Startups (2026), Tested
Purpose-built for SaaS startups. Transactional, lifecycle, and broadcast in one product, with audiences and events as first-class primitives. Removes the usual two-vendor stitching and the visual editor reaches non-engineers without leaving the same data model.
9 Best SendGrid Alternatives (2026), Tested
If you used SendGrid for marketing as well as transactional.
12 Best Mailchimp Alternatives (2026), Tested
Strong SaaS alternative with broadcast, lifecycle, and transactional email in one product.
8 Best Email Tools With Dynamic Personalization (2026), Tested
A clean contact and event model supports SaaS personalization without requiring a separate transactional stack.
8 Best Email Tools With Behavioral Triggers (2026), Tested
A simpler SaaS-first event model that covers activation, retention, and transactional triggers without enterprise overhead.
7 Best Email Tools With PostHog Integration (2026), Tested
A direct fit for SaaS teams that want product analytics events to drive lifecycle and transactional messages in one tool.
8 Best Email Tools With Segmentation (2026), Tested
SaaS-oriented audiences combine contact properties and product events without a large implementation burden.
7 Best Email Tools With Analytics Integrations (2026), Tested
Keeps SaaS contact, event, and email data close enough for practical activation and conversion reporting.
7 Best GDPR-Compliant Email Tools (2026), Tested
Clear SaaS messaging workflows and consent separation, though teams should verify current hosting and subprocessor requirements.
7 Best Email Tools With HubSpot Integration (2026), Tested
A focused SaaS messaging layer that can keep product email separate while HubSpot remains the sales system of record.