Double opt-in - contacts you can rely on
Build a database of real, active contacts. Every sign-up in 2way is verified via SMS. Only genuine contacts enter your database.
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Large database ≠ good database
Contact quality starts at sign-up. Before a phone number enters your database, it must be verified via SMS. It’s a simple mechanism that makes a real difference: eliminates invalid and fake numbers, confirms real customer intent, creates a database ready for ongoing communication and sales.
Double opt-in - automated phone number verification
The customer enters their phone number -> They receive a one-time SMS code -> They confirm the sign-up -> The number is added to your database as a verified contact -> Every step is measurable and fully visible in the platform - with no additional effort from your team.
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Every contact in your database has real sales potential
Double opt-in works as a single, consistent standard for sign-ups. Every contact goes through the same verification process - regardless of the source: pop-ups, landing pages, QR codes, NFC, online and offline campaigns. As a result, you work with one verified contact database - ready for communication, sales, and long-term customer engagement.
More real value from your contact database
Double opt-in in 2way: doesn’t artificially inflate lead numbers, genuinely improves lead quality, eliminates duplicates and fake sign-ups. Every contact in your database has real sales potential. As a result, your database becomes a stable asset - ready to scale campaigns, run tests, and support long-term customer engagement.
Double opt-in is a permanent standard in 2way
Every sign-up goes through the same verification process before entering your database. No matter where it comes from: a pop-up, a landing page, a QR code, NFC, online or offline campaigns. The result: One consistent, verified database - the foundation for effective sales activities.
🛠️ Explore all the features of our 2way SMS Marketing Platform
Gain access to complete SMS Marketing toolset. Make your texting outreach effortless as a breeze 💨, regardless of your business type.
Why does double opt-in significantly improve database quality?
of contacts confirm their sign-up via SMS code
of phone numbers in the database are verified
GDPR-compliant sign-up and consent verification process
Customer testimonials
I highly recommend 2way SMS service and SMS newsletter application for its versatility and effectiveness in running marketing campaigns. With this application, you will be able to easily manage your customer communication by sending personalized SMS messages and effectively run SMS newsletter campaigns.
Nikodem Grzeszczuk
Head of Digital Marketing, Rockwool
We’ve been using 2way SMS for our business, and it has been a game-changer. The ability to directly text our customers has opened up a whole new avenue for communication and marketing. With 2way SMS, we can engage with our customers by answering their questions, sending promotions, or collecting feedback. Our customers appreciate the personalized updates, appointment reminders, and special offers delivered straight to their phones. Damian has been essential to the success of our marketing efforts and the implementation of this new service.
Chase Roedel
Head of Marketing, Permaseal
