Loops vs Userlist
Unified SaaS transactional plus lifecycle email versus account-level SaaS lifecycle automation.
What matters for SaaS product teams
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.
| Priority | Loops | Userlist |
|---|---|---|
| Multi-tenant | No | No |
| Event stream | Yes | Yes |
| Suppressions API | Yes | Yes |
| Operating since | 2022 | 2017 |
| Scheduling | Yes | Yes |
| Best published rate per 1,000 | Tiers not published in comparable form | Tiers not published in comparable form |
| Deliverability | Strong and improving; engagement-driven sender reputation typical of marketing platforms with real human-curated content. | Lifecycle platform, not a standalone sender reputation product. Best suited to opt-in SaaS product and lifecycle mail with clear user and company data. |
| Webhooks | Yes | Yes |
| Starts at | $49/mo for 5,000 contacts | Dynamic slider pricing; Basic includes 10,000 users and $10/mo per additional 1,000 users |
For a multi-tenant SaaS product running trial expiry notices, dunning, onboarding sequences, and per-tenant transactional mail, Userlist takes every priority that separates them here (operating track record), while Loops matches it on the rest. On entry price, Loops offers $49/mo for 5,000 contacts against Dynamic slider pricing; Basic includes 10,000 users and $10/mo per additional 1,000 users from Userlist. That ordering reflects this audience. Weigh the same table differently and the answer changes.
Side by side
| Feature | Loops | Userlist |
|---|---|---|
| Multi-tenant | No | No |
| Deliverability | Strong and improving; engagement-driven sender reputation typical of marketing platforms with real human-curated content. | Lifecycle platform, not a standalone sender reputation product. Best suited to opt-in SaaS product and lifecycle mail with clear user and company data. |
| Webhooks | Yes | Yes |
| Starts at | $49/mo for 5,000 contacts | Dynamic slider pricing; Basic includes 10,000 users and $10/mo per additional 1,000 users |
| Tagline | Modern lifecycle and broadcast email for SaaS. | SaaS lifecycle email with account-level data. |
| Free tier | 1,000 contacts and 4,000 sends/mo on the Free plan | 14-day free trial, card required |
| Pricing model | subscriber-based | subscriber-based |
| API | Yes | Yes |
| SMTP | No | No |
| SDKs | node, python, go, ruby, php | None |
| Templates | rich | rich |
| React Email | Yes | No |
| Inbound | No | No |
| Idempotency | No | No |
| Dedicated IP | No | No |
| DX score | 9/10 | 8/10 |
| Best for | SaaS startups and indie product teams that want a single tool for transactional plus marketing. | SaaS teams that need lifecycle email tied to users, accounts, and product behavior. |
Loops
- ›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
Userlist
- ›Company accounts and account-level automation are first-class
- ›Marketing, lifecycle, transactional, and in-app messages share one data model
- ›Direct API integration and custom events are core features
- ›Early-stage startup discount is published for qualifying SaaS companies
- ›No permanent free plan
- ›Public page does not expose a static base price without the pricing slider state
- ›Narrower fit outside SaaS products