CleverPush is a web push notifications service from Germany. We care about GDPR and provide features like opt-in design and notification split-testing and a REST API. Many big publishers already use CleverPush to increase their ad revenue with click rates up to 20%.
@hypervillain Yes, you can receive the subscriber's ID when opting in trough our JavaScript SDK and send specific notifications to only one use later via our API. It's also possible to define event-triggered follow-up campaigns with dynamic variables.
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CleverPush
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