Overview
Keila and Loops serve different needs in the email space. Keila is a open-source email newsletter tool with EU hosting. Loops is a email platform built specifically for SaaS companies.
The choice depends on what you need: open source (agplv3) (Keila) or saas-focused (Loops). For SaaS businesses specifically, Sequenzy offers purpose-built features that neither tool provides.
Pricing Comparison
- Keila: $8-32/month (cloud) - Open source (AGPLv3). Self-hosted free. EU cloud.
- Loops: $79/month - Built for SaaS. Event-based triggers. Modern UI.
- Sequenzy: $49/month for 60,000 emails with unlimited contacts, and yearly billing takes 10% off. See pricing.
Where Keila Wins
Open source (AGPLv3)
Keila offers open source (agplv3), which is a genuine advantage for teams that need it.
EU cloud hosting
Keila offers eu cloud hosting, which is a genuine advantage for teams that need it.
Visual editor + MJML
Keila offers visual editor + mjml, which is a genuine advantage for teams that need it.
Privacy-first
Keila offers privacy-first, which is a genuine advantage for teams that need it.
Where Loops Wins
SaaS-focused
Loops offers saas-focused, which matters for teams that prioritize this.
Event-based triggers
Loops offers event-based triggers, which matters for teams that prioritize this.
Modern UI
Loops offers modern ui, which matters for teams that prioritize this.
Developer-friendly
Loops offers developer-friendly, which matters for teams that prioritize this.
Use-case matchups
| Situation | Best first look | Why |
|---|---|---|
| Privacy-first team wants open-source newsletter infrastructure | Keila | Keila gives more control over hosting, source code, and data residency. |
| SaaS team wants a managed product email workflow | Loops | Loops is closer to product-triggered SaaS email than Keila. |
| Technical team can self-host and only needs campaigns | Keila | The low price works when infrastructure ownership is acceptable. |
| Product team wants modern SaaS email without server work | Loops | Loops removes hosting and gives a cleaner event-driven workflow. |
| SaaS team needs Stripe-aware transactional plus marketing email | Sequenzy | Sequenzy adds billing lifecycle and transactional email in one product. |
Pricing reality
Keila's $8-32/month cloud price is low, but self-hosted or privacy-first setups still require hosting, sending infrastructure, DNS, monitoring, backups, updates, and deliverability work.
Loops' $79/month signal is a managed SaaS email price. Confirm contact tier, event tracking, transactional usage, API needs, template workflow, and whether Loops covers billing lifecycle without another product.
Sequenzy's $49/month price is relevant if Stripe, transactional email, and subscription lifecycle automation are more important than Keila's open-source control or Loops' specific SaaS email workflow.
Review signals
| Platform | What reviews in this page suggest | What to validate |
|---|---|---|
| Keila | Review themes favor EU hosting, self-hosting, GDPR control, and open-source newsletters. | Confirm automation limits, integration coverage, and technical ownership. |
| Loops | Review themes favor easier setup, SaaS focus, modern UI, developer-friendly event tracking, and managed convenience. | Confirm platform maturity, automation depth, and whether Stripe/billing workflows need another tool. |
Best Fit by Hosting and SaaS Workflow
Best open-source newsletter tool for privacy-first teams
Keila fits teams that want open-source control, EU hosting options, self-hosting, and ownership of subscriber data. It should be evaluated first when privacy posture and infrastructure control matter more than SaaS lifecycle automation.
Best managed SaaS product email tool for event workflows
Loops fits SaaS teams that want a managed product-email workflow with events, loops, broadcasts, and a cleaner interface than self-hosted newsletter software. Choose it when the team wants lifecycle emails without owning servers, updates, backups, and deliverability operations.
Best Stripe-aware transactional plus marketing email platform
Sequenzy fits when the team wants billing lifecycle, transactional email, and campaigns in one hosted email stack. It is most relevant when Stripe events are more important than Keila's open-source control or Loops's specific product-email workflow.
Migration checklist
| Workstream | Moving toward Keila | Moving toward Loops | Moving toward Sequenzy |
|---|---|---|---|
| Infrastructure | Choose cloud/self-hosted, SMTP, DNS, backups, updates, and monitoring. | Configure domains, event tracking, API calls, templates, and workspace permissions. | Configure domains, Stripe, app events, transactional routes, and subscriber sync. |
| Contacts | Import subscribers, lists, tags, custom fields, consent, and suppressions. | Import contacts, properties, events, lists/audiences, and suppressions. | Import subscribers, tags, attributes, suppressions, and billing identifiers. |
| Automations | Keep flows simple or externalize workflow logic. | Rebuild product loops, lifecycle messages, campaigns, and transactional-style emails. | Rebuild onboarding, trial, upgrade, renewal, dunning, transactional, and campaign flows. |
| Templates | Recreate newsletters and MJML/editor templates. | Recreate SaaS lifecycle and campaign templates. | Recreate lifecycle and transactional templates. |
| Reporting | Track campaigns, list growth, bounces, opens, clicks, and delivery health. | Track product email, transactional, lifecycle, and campaign performance. | Track lifecycle, billing, transactional, and campaign reporting. |
Decision checklist
- Is open-source control more important than managed SaaS email?
- Who owns infrastructure and deliverability if Keila is chosen?
- Does Loops cover billing lifecycle or only product messaging?
- Do you need transactional email and Stripe triggers in the same system?
- Which workflow is easier for your team to maintain: infrastructure, events, or billing lifecycle?
Open-Source vs Commercial Trade-off
Keila's AGPLv3 license means you can read the code, run it on your own servers, and never worry about a price hike forcing a migration. Loops is closed-source SaaS priced at $79 a month, and you are trusting its team to keep features and pricing stable over time. If code auditability and long-term independence matter more to you than a polished interface, Keila's open-source cloud plans starting at $8 a month give you that option without losing hosted convenience.
EU Data Sovereignty
Running Keila on your own infrastructure keeps subscriber data under your own jurisdiction, which matters if you answer to strict GDPR requirements or work in a regulated industry. Keila's cloud plans, from $8 to $32 a month, also offer EU hosting for teams that want managed convenience without leaving the EU. Loops stores your data on its own servers as a SaaS product, so you are relying on its hosting choices rather than controlling them directly.
The Self-Hosting Reality
Self-hosting Keila means you own uptime, backups, and updates, work that a DevOps-capable team may see as a reasonable price for full control. Loops removes that operational load entirely for $79 a month, handling infrastructure so a small marketing team can focus on sending rather than server maintenance. Which one is less work for you depends on whether your team already maintains servers or would rather not start.
