Portuguese Phrase
Usa um app de mapas confiável.
Meaning
‘Use a reliable map app.’ The sentence is a short, direct recommendation to rely on a trustworthy navigation application.
When to use
You would say this when giving advice to someone who is traveling, driving, or looking for directions, especially if they are unsure which navigation tool to trust.
✦Grammar Breakdown
Usaumappdemapasconfiável
Usa (imperative)
‘Usa’ is the informal imperative form of the verb ‘usar’, used to give a direct command or suggestion.
um (indefinite article)
‘um’ is the masculine singular indefinite article, matching the gender and number of ‘app’.
app (noun, masculine)
‘app’ is a borrowed word from English, treated as masculine in Portuguese (um app).
de (preposition)
‘de’ links the noun ‘app’ with the complement ‘mapas’, indicating the type of app.
mapas (plural noun)
‘mapas’ is the plural of ‘mapa’, meaning ‘maps’; it stays plural because the app works with many maps.
confiável (adjective)
‘confiável’ agrees with ‘app’ (masculine singular) and is placed after the noun, a common order in Portuguese.
🗨In Conversation
Estou perdido, não sei como chegar ao centro da cidade.
I'm lost, I don't know how to get to downtown.
Usa um app de mapas confiável.
Use a reliable map app.
✕Common Mistakes
Usa um app de mapa confiável.
‘Mapa’ is singular; the phrase talks about an app that works with many maps, so the plural ‘mapas’ is required.
Usa um app de mapas confiáveis.
The adjective must agree with ‘app’ (masc. singular), not with ‘mapas’. Use ‘confiável’, not ‘confiáveis’.
Usa um aplicativo de mapa confiável.
Even when using ‘aplicativo’, keep ‘mapas’ plural: ‘aplicativo de mapas’.
↔Alternatives
Utiliza um aplicativo de mapas confiável.
Use a reliable map application.
Baixe um app de navegação seguro.
Download a secure navigation app.
Escolha um app de mapas que seja confiável.
Choose a map app that is reliable.
Cultural Tip
In Brazil the most popular map apps are Google Maps, Waze and Here WeGo. They not only give routes but also real‑time traffic updates, which many locals consider essential for daily commutes. When you recommend an app, mentioning that it provides live traffic can make your advice sound more credible.