Tandem

Tandem is the most polished of the free language-exchange apps. You set your native language (English) and your learning language (Portuguese), and the app surfaces speakers who want the inverse pairing. Most exchanges happen as text chat, with audio and video options for partners willing to schedule a call.

The catch is that you get out what you put in. The free model attracts users with varying levels of seriousness; finding consistent practice partners takes some screening. Best used as a supplement to structured tutoring, not as your primary speaking practice.

Pros

• Free to use; no subscription required for core features
• Brazilian and European speakers both well-represented
• Text, audio, and video options for different practice levels
• Built-in correction tools for written messages

Cons

• Quality of conversation depends on luck and motivation
• Scheduling can be inconsistent
• Some users treat it as a dating app
• Best as a supplement to a tutor, not a replacement