Push Notification Platform · Vendor file
OneSignal
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The world's leader for mobile push notifications, web push, SMS, email and in-app messaging. Trusted by 2 million+ businesses to send 12 billion+ messages per…
Active · verified September 2026
Categories OneSignal serves
The B4 Index places OneSignal in one category. Each category page lays out the build-versus-buy considerations for that decision.
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