The phrase "actually be useful" is correct and usable in written English.
You can use it when discussing the potential effectiveness or practicality of something in a real-world context.
Example: "I was skeptical about the new software, but it turned out to actually be useful for streamlining our workflow."
Alternatives: "truly be beneficial" or "genuinely be helpful."
That lays the groundwork for a decent amount of users of the app, so that an in-app messaging feature becomes something that might actually be useful, and used.
Then let's weigh in new Siri capabilities — hopefully the personal assistant will actually be useful, and thus used, this time around.
The biggest one: getting people to tag each of their updates, and ensuring that those tags will actually be useful (as I used the site, I found myself asking if I should tag one of my Jots 'tech' or 'technology'technology
However, one cannot create a particular kind of artifact just by designing something with the intention that it be used for some particular purpose: a member of the kind so created must actually be useful for that purpose.
I haven't used Ping enough to tell if it will actually be useful.
"It's moving in a direction where the end point might actually be useful".
Braingate has barely worked on just a handful of people, and it is years away from actually being useful.
Quantum computers, which rely on the arcana of quantum mechanics to do many computations in parallel, are a long way from actually being useful.
It's a promising idea, but if the data actually is useful, Premise will need to start providing a lot of it — and that means, presumably, hiring a whole lot more contributors.
Aside from all the obvious fanciful applications of the Lumalive, I can see this as actually being useful for a lot of practical applications.
As strange of a product as it might seem, coyote urine actually is useful.
