After a brief beta testing period, Microsoft’s Cortana assistant is available for everyone on the iPhone and Android phones.

Though Cortana lacks the deep operating system hooks of Android’s Google Now and iOS’s Siri, it could still be a useful companion for users of Windows 10 PCs. For instance, you can set time- or location-based reminders from the Windows 10 taskbar, and have those reminders pop up on the phone.

Cortana works better if you give it more access to personal data in Windows 10. Setting up the Windows Mail app allows Cortana to track flights and inbound packages, and you can specify favorite sports teams, weather locations, and news topics of interest in Cortana’s Notebook menu on the PC.

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