Which to use
“app” is a noun and “auf” is an adverb - they look or sound alike but fill different roles in a sentence.
- #4,695
- “app” frequency rank
- #42,318
- “auf” frequency rank
- 47013
- confusion score
Side-by-Side Comparison
| Feature | app | auf |
|---|---|---|
| Definition | aplicativo, aplicação | aberto |
Where the spellings diverge
Shared letters are muted; the letters that actually set app and auf apart are highlighted. They share 1 letter in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: app is anoun and aufanadverb. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 47013, derived from the frequency rank of both members and their visual similarity.
app is recorded at frequency rank #4,695, classified as anoun. auf is at rank #42,318, tagged as anadv, pronounced /aʊ̯f/.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 47013, this pair ranks #18,284 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of app vs auf
Shared letters: a. Private to "app": p. Private to "auf": fu.
"app" · 3 letters · shape VCC · "auf" · 3 letters · shape VVC
Frequency comparison
Frequently Asked Questions
Can "app" and "auf" be used interchangeably?
Which is more common, "app" or "auf"?
Remembering app vs auf
The fastest way to pick the right one every time.
- Check the role first: if you need a noun, it's “app”; for an adverb, it's “auf”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “app” entry
- Browse more pairs most likely to be confused. Most confusable