alt vs app, What's the Difference?

Which to use

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

#21,650
“alt” frequency rank: #4,695
“app” frequency rank: 26345
confusion score

Side-by-Side Comparison

Feature	alt	app
Definition	velho	aplicativo, aplicação

Letter map: alt vs app

Shared letters muted; letters that set alt and app apart highlighted. Shared run: 1.

3 ch

alt

3 ch

app

Part-of-speech tell for alt / app

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: alt is anadjective and appanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 26345, derived from the frequency rank of both members and their visual similarity.

alt is recorded at frequency rank #21,650, classified as anadj, pronounced /alt/. 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 26345, this pair ranks #42,841 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of alt vs app

Shared letters: a. Private to "alt": lt. Private to "app": p.

"alt" · 3 letters · shape VCC · "app" · 3 letters · shape VCC

Frequently Asked Questions

Do "alt" and "app" mean the same thing in a sentence?

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

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

"app" is the more common of the two: it sits at frequency rank #4,695 in our Portuguese list, against #21,650 for "alt". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

Full dictionary entry for "alt" 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 #42,841 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"alt" and "app" also get mixed up with nearby pairs, the highest-scored neighbour is "acs vs alt". Nearby pair

Confusion rank #42,841 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.