"your notes will always be" -> "your notes are always" "content will be synced" -> "content is synced"
"note will be periodically synced" -> "notes are periodically synced" "You can use it for managing personal tasks..." -> "Manage your personal tasks..."
"You can choose between light and dark" -> "Choose between light and dark"
The active voice equivalent of "content will be synced" would be "NotesHub will sync your content".
> "content will be synced" -> "content is synced"
FYI that's still passive voice.
If it’s clear the zombies are doing the action (subject), then the content is passive voice. Otherwise, if the zombies are an adverbial phrase, the sentence is in active voice.
Passive voice: “Content is synced by zombies”
Active voice: “NotesHub syncs the content by zombies”
When I started grad school and was learning how to write effectively, I struggled with passive/active voice differentiation… until I learned the zombies tip. It’s so absurd that you can’t forget it, and it’s simple enough to differentiate the two in a split second!
Great three part series on that topic and others: