About PreludePrelude is redefining how companies authenticate and onboard users - turning what's traditionally a cost center into a growth lever.Our flagship product lets businesses send OTP codes with the best price-to-conversion ratio on the market, dynamically selecting the most effective channel in real time (optimized SMS, WhatsApp, and more) while actively blocking spam and fraud that legacy providers miss.Founded in 2022 by former Zenly team members who lived the pain of broken SMS authen
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£45,000 – £60,000 (Glassdoor, Levels.fyi, 2025)
