Are language exchanges good for learning Spanish?

Language exchanges can be worth it for Spanish, but mostly once you're past the absolute basics and you bring a structure. They give you free, real conversation. The downsides are flaky partners, uneven time and conversations that drift into English. A tutor is more reliable, an exchange is cheaper.

How an exchange works

You find a Spanish speaker who wants to learn English. You spend half the time speaking Spanish and half English, helping each other. You can meet in person, on a call or by text and voice notes.

Plenty of apps and community sites are built to match people this way. I won't name a favorite, because they come and go, and the one that matters is whichever has active people at your level.

What they're good for

Real conversation. Someone actually answers you, at a normal pace, with their own opinions.
Cost. It's free, apart from your time.
Cultural stuff. You learn how people really talk, what they joke about and what they eat.
Motivation. Having a person expecting you on Thursday is a strong reason to show up.

Where they go wrong

I think exchanges have real weaknesses, and people often don't mention them:

Partners disappear. Casual exchanges have a high drop-off rate. Plan on trying several people.
English takes over. If your Spanish is weak, the other person switches to English to be helpful, and you end up teaching. See what to do when natives switch to English.
No teaching. Your partner isn't trained. They may not correct you, or may not know why something is wrong.
Unequal levels. If one of you is far ahead, one has a good time and the other is stressed.
Small talk loops. Without a plan, you repeat "What do you do? Where are you from?" every time.

When to start

For complete beginners, I'd wait a bit. With only a few dozen words, a conversation is very hard on both people. A better start is a couple of months of listening and basic study, plus talking to yourself. For the listening side, Langtok (the app I built) lets you swipe through short Spanish stories and tap any word to translate, which is an easy way to get used to slow replies.

Once you can say simple sentences about yourself and understand slow replies, around A2 or so, exchanges become fun. If you're not sure where you are, check your Spanish level.

How to make it work

Split the time in a fixed way. 30 minutes in Spanish, then 30 in English, using a timer. No switching.
Bring a topic. Pick one thing to talk about: a movie, a recipe, your weekend.
Ask for corrections. Tell your partner which kind you want, such as "correct me on verbs" or "only correct big mistakes."
Keep a notebook. Write down new words and mistakes during the call, and review them afterward.
Be consistent. Same day and time each week works better than "let's see."
Be a good partner. Be patient, prepare something and show up. That's how you get a good partner back.

Exchange or tutor?

A tutor is more structured and costs money. An exchange is free and looser. Many people do both: a tutor to fix mistakes, and an exchange for relaxed practice. If budget is the issue, an exchange is a sensible way to get lots of speaking time.

Think of it as one tool. It won't replace listening and reading, but it fills the one gap that apps can't: talking to a real, unpredictable person.