Sendlens
Amsterdam, Netherlands
What it is
Sendlens is a web platform for examining email campaign performance beyond the reports supplied by email service providers. It captures campaign screenshots and scores them across more than 15 fields, including content, visuals, calls to action, layout, tone, palette, and spam signals. It relates those traits to open, open-to-click, and conversion data, then orders patterns by statistical confidence. Similar campaigns can be clustered for comparison, with aggregated metrics; users can rename, recolor, or assign campaigns manually. Automation emails are grouped under their parent flow, with totals and per-step breakdowns. ActiveCampaign and Brevo are live integrations. Campaign and flow performance can be exported as CSV for use with tools such as Sheets, Looker, and PowerBI. Conversion data can be uploaded as a CSV to create attribution funnels, with a configurable seven-day default window; attribution is a Pro feature. The free plan includes 10 one-time fingerprint credits. Essentials costs €29 per month, and Pro costs €69 per month.
For and against
For
- Scores campaigns across more than 15 fields.
- Compares campaign traits with engagement and conversion data.
- Groups automation emails with totals and step breakdowns.
- Exports campaign and flow performance as CSV.
- Free plan includes unlimited campaign sync and clusters.
Against
- Free plan has 10 fingerprint credits, one-time.
- Only ActiveCampaign and Brevo are live integrations.
- Attribution is limited to the Pro plan.
- Pro individual engagement sync has a 90-day window.
The verdict
Sendlens brings campaign analysis, clustering, and automation reporting into one web platform, with CSV exports and live integrations for ActiveCampaign and Brevo. The free plan supports campaign sync and clustering, while conversion attribution requires Pro.
Who it suits
Sendlens suits email marketers, SME marketing managers, and freelance or agency operators who want to analyze campaign patterns and performance. Teams that need conversion attribution should note it is a Pro feature.
Plans and prices
Free
10 fingerprint credits one-time · unlimited campaign sync and clusters · no credit card required
Read 30 Sep 2026 · sendlens.com
Essentials
50 fingerprint credits/month · unlimited campaign sync and clusters · CSV exports · email support
Read 30 Sep 2026 · sendlens.com
Pro
250 fingerprint credits/month · conversion attribution · revenue per campaign and cluster · priority support
Read 30 Sep 2026 · sendlens.com
On the record
- Audience
- Sendlens identifies email marketers, SME marketing managers, and freelance or agency operators as its intended users.sendlens.com · read 30 Sep 2026
- Automation analysis
- Sendlens groups individual flow emails into their parent automation and provides aggregated totals and per-step breakdowns.sendlens.com · read 30 Sep 2026
- Campaign groups
- Clusters group similar campaigns for comparison and include aggregated metrics; users can rename, recolor, or manually assign campaigns.sendlens.com · read 30 Sep 2026
- Company location
- Sendlens says it is built by a small team based in Amsterdam, The Netherlands.sendlens.com · read 30 Sep 2026
- Data handling
- The privacy policy says service providers include DigitalOcean and Cloudflare, that Sendlens does not sell personal data, and that users can request account-data deletion by email.sendlens.com · read 30 Sep 2026
- Email analysis
- It screenshots campaigns and scores each across more than 15 structured fields, including content, visuals, calls to action, layout, tone, palette, and spam signals.sendlens.com · read 30 Sep 2026
- Exports
- Sendlens offers platform-neutral CSV exports for campaign and flow performance that can be used with Sheets, Looker, and PowerBI.sendlens.com · read 30 Sep 2026
- Live integrations
- ActiveCampaign and Brevo are live integrations; Sendlens says it imports campaigns, metrics, content, and flows using an API key.sendlens.com · read 30 Sep 2026
- Pattern analysis
- Sendlens cross-references email traits with open rate, open-to-click rate, and conversion data, and ranks patterns by statistical confidence.sendlens.com · read 30 Sep 2026
- Plan limit
- The pricing comparison lists a 90-day window for individual open and click engagement sync on Pro.sendlens.com · read 30 Sep 2026
- Planned integrations
- The site lists Klaviyo, Mailchimp, and Kit as coming next and names Customer.io and HubSpot among roadmap platforms.sendlens.com · read 30 Sep 2026
- Product
- Sendlens is an email campaign intelligence platform that analyzes campaign performance beyond the reporting provided by email service providers.sendlens.com · read 30 Sep 2026
- Revenue attribution
- Users can upload conversion data as a CSV to build campaign attribution funnels; the default attribution window is seven days and configurable, and attribution is a Pro feature.sendlens.com · read 30 Sep 2026
- Security and privacy
- Sendlens says it encrypts data in transit with TLS and at rest, limits production access to a need-to-know basis, and rotates credentials regularly.sendlens.com · read 30 Sep 2026
- Support
- The site says it usually answers messages within the day; Essentials includes email support and Pro includes priority support.sendlens.com · read 30 Sep 2026
