Describing what an app is used for
Use for before an activity or purpose.
App is a noun, not a verb. Use app for when describing purpose, and app on when referring to a platform or device.
Use app for to describe what the app is used for. Use app on to show the device or platform where it runs. These are not fixed verb-preposition patterns because app is a noun.
These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.
Use for before an activity or purpose.
Use on before a phone, tablet, computer, or platform.
For can also introduce the intended users.
The same subject can take different constructions because each sentence answers a different question.
Some combinations appear in real text but do not mean what learners often assume.
App is normally a noun in modern English.
✕ We apped on the website. ✓ We used the app on the website.Use for when describing what the app does.
✕ I need an app on learning languages. ✓ I need an app for learning languages.For is the standard choice before activities.
✕ an app to tracking habits ✓ an app for tracking habitsChoose the expression that matches the intended meaning.
Paste the complete sentence below. Linguix checks the preposition together with grammar, spelling, punctuation, and style.
In standard everyday English, app is mainly used as a noun meaning application.
Use app for to describe the purpose or users of an app.
Use app on to refer to the device, platform, or location where the app runs.
Create a free account to check complete texts, apply suggestions, and save your documents.