Is the word aplicativo the same in Brazilian and European Portuguese?

No

While the fundamental meaning of the word remains the same (referring to software), there is a difference in typical usage. In Brazil, "aplicativo" is the standard, everyday term used to describe mobile or desktop software. In Portugal, although "aplicativo" is understood, it is much less common in casual conversation. Instead, Portuguese people much more frequently use the shortened English term "app" or the word "aplicação." Additionally, the vocabulary for the device itself differs (Brazil uses celular, while Portugal uses telemóvel).

Brazilian Portuguese Usage

1. Eu baixei um aplicativo novo de música. (I downloaded a new music app.)
2. Esse aplicativo de entrega é muito rápido. (This delivery app is very fast.)
3. Você tem o aplicativo do banco no celular? (Do you have the bank app on your phone?)
4. O aplicativo está travando muito hoje. (The app is freezing a lot today.)
5. Preciso atualizar meu aplicativo de mapas. (I need to update my maps app.)

Continental Portuguese Usage

1. Eu instalei uma app nova de música. (I installed a new app for music.)
2. Esta aplicação de entrega é muito rápida. (This delivery application/app is very fast.)
3. Tens a app do banco no telemóvel? (Do you have the bank app on your mobile?)
4. A aplicação está a dar erro. (The application/app is giving an error.)
5. Preciso de atualizar a minha app de mapas. (I need to update my maps app.)