Sender.net vs Klaviyo
Sender.net is a European alternative to Klaviyo: same email & communication use case, headquartered in Lithuania and governed by EU GDPR, while Klaviyo is based in the United States.
By the EU Alternatives team Last updated
Send email campaigns and SMS automations with drag-and-drop templates, A/B testing, advanced segmentation, and 15,000 free emails per month for up to 2,500 subscribers.
- Jurisdiction
- EU / EEA
- Primary privacy law
- EU GDPR
- US CLOUD Act exposure
- No
- Open source
- No
- Free tier
- Yes
Built around ecommerce data rather than newsletters, it ties order history to segments and automated flows, then reports revenue per campaign, which is the number that keeps merchants signed in. The free tier is real at 250 profiles and 500 emails a month, after which billing tracks list size from around 30 dollars. Its terms run on Massachusetts law, from a Delaware corporation based in Boston.
- Jurisdiction
- United States
- GDPR by default
- Requires DPA + TIA
- US CLOUD Act exposure
- Yes
Sender.net vs Klaviyo at a glance
| Sender.net | Klaviyo | |
|---|---|---|
| Headquarters | Lithuania | United States |
| Data jurisdiction | EU / EEA | United States |
| Primary privacy law | EU GDPR | Requires DPA + transfer assessment |
| US CLOUD Act exposure | No | Yes |
| Best for | Teams that need email & communication built for European data-protection requirements | Teams already invested in the Klaviyo ecosystem |
Choose Sender.net if…
- You want a provider governed by a European privacy regime
- GDPR or public-sector data-protection requirements apply to you
- You want to start free and scale up later
- You'd rather back the European tech ecosystem
Stick with Klaviyo if…
- You depend on integrations only available in the Klaviyo ecosystem
- Your organisation has no EU data-residency constraints
- Migration costs outweigh the jurisdiction benefits for now
About Sender.net
Sender is a Lithuanian email marketing and SMS automation platform giving small businesses enterprise-grade tools at an accessible price, including a generous free tier with 2,500 subscribers and 15,000 emails per month, no daily cap. Drag-and-drop builders, 1,600+ templates, and a visual automation editor cover everything from welcome flows to abandoned-cart recovery.
Campaigns integrate with WordPress, WooCommerce, PrestaShop, Shopify, and Zapier out of the box. Detailed segmentation targets by behaviour, geography, purchase history, or custom fields, while A/B testing optimises subject lines and send times with automatic winner selection. Transactional emails run on the same platform alongside marketing campaigns.
Key benefits:
- Free tier with 2,500 subscribers and 15,000 emails/month, no daily sending limit
- Visual automation builder for welcome sequences, drip campaigns, and re-engagement flows
- SMS marketing alongside email in a single campaign view
- A/B testing on subject lines, content, and send times with automatic winner selection
- 1,600+ templates for newsletters, promotions, and transactional messages
- Segmentation by behaviour, geography, purchase history, and custom contact fields
- Pop-ups and landing pages for growing subscriber lists natively
- WooCommerce, PrestaShop, and Shopify plugins for e-commerce automation
Sender is headquartered in Vilnius, Lithuania, an EU member state, and is fully GDPR-compliant. Data is hosted within the EU and the platform holds ISO certification. Continuous IP reputation monitoring underpins a claimed 99.98% inbox delivery rate.
Founded in 2012, Sender is trusted by 180,000+ businesses worldwide. It is ideal for e-commerce brands and agencies that need automation-first email marketing without enterprise pricing.
Why choose Sender.net over Klaviyo?
The decisive argument is data jurisdiction. Klaviyo is headquartered in the United States, which means personal data processed through it can be subject to non-EU legal regimes: the US CLOUD Act, FISA 702, or similar laws depending on the provider. After the 2020 Schrems II ruling, EU organisations must carry out a transfer impact assessment for every such data flow.
Sender.net removes that overhead. As a Lithuania-based provider, it operates under EU GDPR, and data stays inside the EU/EEA by default. For regulated sectors such as health, public administration, and finance, that's not a nice-to-have but a requirement. For everyone else, it's concentration-risk insurance: you avoid depending on a single jurisdiction that can change the rules without warning.