APA vs app, What's the Difference?

Which to use

“APA” is an abbrev and “app” is a noun - they look or sound alike but fill different roles in a sentence.

#23,196
“APA” frequency rank: #4,695
“app” frequency rank: 27891
confusion score

Side-by-Side Comparison

Feature	APA	app
Definition	área de proteção ambiental	aplicativo, aplicação

Letter map: APA vs app

Shared letters muted; letters that set APA and app apart highlighted. Shared run: 2.

3 ch

APA

3 ch

app

Role in the sentence - APA and app

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: APA is anabbrev and appanoun. On the page they differ by a single letter - a in “APA” becomes p in “app”. Our composite confusion score for this pair is 27891, derived from the frequency rank of both members and their visual similarity.

APA is recorded at frequency rank #23,196, classified as anabbrev. app is at rank #4,695, tagged as anoun.

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 27891, this pair ranks #41,022 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of APA vs app

Shared letters: ap. Private to "APA": -. Private to "app": -.

"APA" · 3 letters · shape VCV · "app" · 3 letters · shape VCC

Frequently Asked Questions

Is swapping "APA" for "app" ever safe?

No - they are not even the same part of speech. "APA" is an abbrev and "app" a noun, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "APA" or "app"?

"app" is the more common of the two: it sits at frequency rank #4,695 in our Portuguese list, against #23,196 for "APA". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

You've compared "APA" and "app". Here's where to go from here.

Full dictionary entry for "APA" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "app" - compare definitions side by side with the headword page. Word entry
This pair ranks #41,022 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"APA" and "app" also get mixed up with nearby pairs, the highest-scored neighbour is "acs vs APA". Nearby pair

Confusion rank #41,022 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.