Guides
Worth reading
How push, email and retention actually work — written for the people who have to build them.
smtpemail
What is SMTP, and why does your app still need it?
SMTP is the protocol that actually moves email between servers. Here is what it does, what it does not do, and how it differs from an email API.
retentionmobile app engagement
Mobile app retention: what actually moves the number
Most retention advice is about notifications. The bigger levers are onboarding, timing and knowing when not to send. A practical guide.
push notificationsfcm
How push notifications actually work on Android and iOS
A clear walkthrough of the push pipeline — tokens, FCM, APNs, and what happens between your server calling send and a notification appearing.
Own your engagement stack today
Start free on the hosted dashboard. Your data, your credentials, your rules.