Loops vs Sender
Loops and Sender are both popular choices in the email marketing platform space. Sender has been around since 2012, giving it a 10-year head start over Loops (founded 2022). Sender is the more affordable option at $10/mo — that's $39 less per month than Loops's $49/mo entry point. Both offer free plans to get started. Sender has the edge with SMS marketing, ecommerce integrations, a drag-and-drop editor. Both tools work well for indie and bootstrapped.
Quick Verdict
Sender wins on price, deliverability, rating, integrations.
Best for most users: Sender (small businesses).
Loops
The email platform built for SaaS
Loops is a developer-first email platform designed exclusively for SaaS companies, combining marketing and transactional email in a single clean interface. Built by Y Combinator alumni, it features a Notion-style block editor, event-based automation triggered by user behavior like signups and upgrades, and contact-based pricing with unlimited sends. Its standout strength is letting small SaaS teams replace both their marketing email tool and transactional service (like SendGrid) with one unified platform.
Sender
Affordable email and SMS marketing
Sender offers one of the most generous free plans in email marketing, combined with built-in SMS capabilities. It's an excellent choice for budget-conscious businesses that need both email and SMS marketing without breaking the bank.
Feature Comparison
| Feature | Loops | Sender |
|---|---|---|
| Rating | 4.6/5 | 4.7/5 |
| Starting Price | $49/mo | $10/mo |
| Free Plan | 1,000 contacts, 4,000 sends/month, Loops branding | 2,500 subscribers |
| Founded | 2022 | 2012 |
| Email Templates | 15 | 50 |
| Integrations | 24 | 50 |
| Deliverability Rate | 95% | 97% |
| Marketing Automation | ✓ | ✓ |
| A/B Testing | ✕ | ✕ |
| Landing Pages | ✕ | ✕ |
| Segmentation | ✓ | ✓ |
| Drag & Drop Editor | ✕ | ✓ |
| SMS Marketing | ✕ | ✓ |
| Ecommerce Features | ✕ | ✓ |
| API Access | ✓ | ✓ |
| Multi-Language | ✓ | ✕ |
| Web Push Notifications | ✕ | ✕ |
| Live Chat | ✕ | ✓ |
| Advanced Analytics | ✕ | ✕ |
Loops: Pros & Cons
Pros
- +Clean Notion-style block editor with extremely fast email creation and minimal learning curve
- +Unified platform for both marketing and transactional emails eliminates need for separate services like SendGrid
- +Simple contact-based pricing with unlimited sends and no per-seat charges on all paid plans
- +Strong developer-focused API with direct integrations for Stripe, Supabase, Clerk, and webhook support
- +Founder-led customer support with direct access via live chat, email, and 1:1 Calendly calls
Cons
- −Limited automation logic — lacks advanced multi-branch workflows and conditional logic found in mature platforms
- −No built-in CRM or detailed contact history, requiring external tools for relationship management
- −Editor has reported bugs including no undo functionality, risking accidental content loss
- −Narrow SaaS-only focus makes it unsuitable for ecommerce, media, or non-tech industries
- −Very small integration ecosystem (24 native integrations) compared to competitors with hundreds
Sender: Pros & Cons
Pros
- +Extremely generous free plan (2,500 subs, 15,000 emails)
- +Built-in SMS marketing on all plans
- +Very affordable paid plans
- +Ecommerce integrations for abandoned cart
- +No credit card required for free plan
Cons
- −No A/B testing
- −No landing page builder
- −Smaller integration ecosystem
- −Less well-known brand
- −Limited advanced features
The Verdict
Loops and Sender are closely matched — both score within 0.1 points of each other in our overall rating. Your decision should come down to specific needs rather than overall quality. On deliverability, Sender reports 97% compared to 95% for Loops — a meaningful difference if inbox placement is critical for your campaigns.
| Criterion | Weight | Loops | Sender |
|---|---|---|---|
| Starting Price | 30% | $49/mo | $10/mo |
| Deliverability | 25% | 95% | 97% |
| Rating | 25% | 4.6/5 | 4.7/5 |
| Integrations | 10% | 24 | 50 |
| Free Tier | 10% | Yes | Yes |
Weights determine how much each criterion counts toward the final score. See full methodology
Choose Loops if…
- + You're a saas startups
- + You're a developer first teams
- + Clean Notion-style block editor with extremely fast email creation and minimal learning curve
Choose Sender if…
- + You want lower starting costs ($10/mo)
- + You need SMS marketing
- + You need ecommerce integrations
- + You're a small businesses