The phrase "allows users to activate" is correct and usable in written English.
You can use it when describing a feature or functionality of a product or service that enables users to turn something on or initiate a process.
Example: "The new software update allows users to activate advanced security features with just one click."
Alternatives: "enables users to turn on" or "permits users to initiate".
This ad type allows users to activate branded overlays that appear when they swipe left or right on the camera.
Since the iPhone XR, iPhone XS and iPhone XS Max have Dual SIM with a nano-SIM and eSIM, it allows users to activate a cellular plan from their carriers without having to use a physical nano-SIM.
The app allows for full control of the data on the phone and allows users to activate the microphone on Android, iOS, and Blackberry devices.
One other interesting tidbit: Android Central says this doesn't appear to break the loophole that allows users to activate LTE on their Nexus 4 for band 4 frequencies, like those used in Canada.
The T305 utilizes a multifunction button that allows users to activate speech commands and has a talk time of 14 hours.
For example, a washing machine with a specific color cycle could use this feature by allowing users to activate that cycle through Assistant.
The card can also be managed from within the Venmo app, allowing users to activate their new card, reset their PIN, or even disable a lost or stolen card.
VirtuWatt is also available as an iPhone app that allows users to remotely activate pre-defined load curtailment sequences.
When activated, this feature allows users to navigate the genome and epigenomes of a species while automatically tracing and visualizing the genomes and epigenomes of other species.
Skype's iPhone app, which was one of the top five free iPhone apps in 2010, allows users to simply turn on the video feature to activate video chat.
Facebook has just activated a new feature that allows users to leave "Like" labels on photos, notes, and other items across the network.
