Loops vs Amplitude
Email marketing for SaaS — loops, transactional, campaigns in one
vs. Digital analytics + experimentation + CDP
Pricing tiers
Loops
Free
1,000 subscribed contacts. 4,000 sends/month. All features. Loops footer on emails.
Free
Paid — 1.5k
1,500 contacts. Unlimited sends. No footer.
$15/mo
Paid — 5k
5,000 contacts. Unlimited sends.
$49/mo
Paid — 10k
10,000 contacts.
$99/mo
Paid — 25k
25,000 contacts.
$199/mo
Paid — 50k
50,000 contacts.
$349/mo
Custom
>100k contacts — contact sales.
Custom
Amplitude
Starter (Free)
10K Monthly Tracked Users, 10M events/mo. Session Replay + unlimited feature flags + Web Experimentation + AI Feedback included.
Free
Plus
$49/mo (annual). Up to 300K MTUs + 25M events. Unlimited product analytics, behavioral cohorts, feature tagging, custom audiences.
$49/mo
Growth
Custom. Causal insights, Feature Experimentation, real-time streaming, predictive audiences.
Custom
Enterprise
Custom. Cross-product analysis, advanced data controls, mutual exclusion groups, multi-armed bandit.
Custom
Free-tier quotas head-to-head
Comparing free on Loops vs starter on Amplitude.
| Metric | Loops | Amplitude |
|---|---|---|
| No overlapping quota metrics for these tiers. | ||
Features
Loops · 12 features
- API Keys — Scoped keys for testing vs production.
- Audiences (Segments) — Filter contacts by properties + event behavior.
- Campaign Analytics — Open/click/unsubscribe rates, heatmaps, A/B significance.
- Campaigns — One-off broadcasts to audience segments. Schedule + A/B test subject.
- Contacts — Contact records with custom properties (strings, numbers, booleans, dates).
- Email Editor — Visual block-based + Markdown + HTML modes.
- Events — Send events to trigger loops/journeys or filter audiences.
- Loops (Automations) — Event-triggered automation flows with delays + conditions.
- Mailing Lists — Opt-in lists with subscribe/unsubscribe preferences per list.
- Template Library — Pre-built templates for SaaS use cases (onboarding, digest, launch).
- Transactional API — Send transactional emails (receipts, password resets) via /transactional endpoin…
- Webhooks — Subscribe to contact/event changes.
Amplitude · 13 features
- AI Feedback (Asking) — Natural language questions over your Amplitude data.
- Amplitude CDP — Customer Data Platform — identify, segment, sync to 150+ destinations.
- Causal Insights — AI identifies why a metric changed — root cause.
- Cross-Product Analysis — Analyze across multiple apps/products in the same org.
- Data Governance — Taxonomies, schemas, approvals, category management.
- Data Warehouse Sync — Sync data to/from Snowflake, BigQuery, Redshift, Databricks.
- Feature Experimentation — Server-side / SDK-level experiments. Growth+.
- Feature Flags — Targeting rules + rollouts. Unlimited in Starter.
- North Star Metric — Pre-built dashboards for key metric tracking.
- Predictive Audiences — ML-based forecasting of user behavior.
- Product Analytics — Core events + funnels + retention + segmentation.
- Session Replay — Pixel-perfect user session recording + privacy masking.
- Web Experimentation — A/B test visual changes on your site without deploy.
Developer interfaces
| Kind | Loops | Amplitude |
|---|---|---|
| SDK | @loops/loops, loops-py | amplitude-analytics-python, @amplitude/analytics-react-native, amplitude-android, amplitude-js / browser-sdk, amplitude-node, AmplitudeSwift (iOS) |
| REST | Loops REST API | Amplitude HTTP API v2, Batch Event API, Export API |
| OTHER | Webhooks | Data Destinations (webhooks) |
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