Do Brain Training Apps Actually Work? What the Research Says

It is the question that should come before you spend a cent on any brain training app: do these things actually work? The industry is worth billions and rests on an appealing promise — play some games, get sharper. We read the research so you can decide with clear eyes.

What “work” even means

To test brain training, researchers look for two distinct things:

• Near transfer — improvement on tasks closely related to what you trained. Practice a memory game, do well on a similar memory task.
• Far transfer — broad improvement in cognition that shows up on unrelated tasks and in everyday life.

Every brain training app implicitly promises far transfer. That is the claim that has to be tested.

What the research found

Near transfer is well established — train on a task and you get better at that task and similar ones. That is not in dispute.

Far transfer is harder. A landmark 2016 review in Psychological Science in the Public Interest examined the commercial brain training industry and found little evidence that brain games improve broad cognitive abilities or everyday functioning. More recent randomized controlled trials in healthy adults have repeatedly found the same pattern: people improve on the trained tasks, but those gains do not reliably spill into general cognition.

The important exception

There is one genuine bright spot, and it deserves real attention because it is the strongest evidence in the field.

The ACTIVE Trial — Advanced Cognitive Training for Independent and Vital Elderly — was a large, NIH-funded study of older adults, followed for many years. One specific type of training, speed-of-processing training, produced measurable benefits that lasted, with some analyses linking it to meaningful real-world outcomes over long follow-up.

This is why apps grounded in that research score well in our roundup — BrainHQ and Zenelia both build on the ACTIVE Trial lineage. Be precise about what it shows, though: it is evidence for one type of training, studied mostly in older adults — strong, but specific.

So should you use a brain training app?

The honest answer is not simply “no.” It depends on your expectations.

Good reasons to use one:

• You enjoy it — an enjoyable cognitive habit is a fine thing.
• You want structure — a daily session is a small, achievable anchor.
• You are an older adult interested in processing-speed training — where the evidence is strongest.
• You want to train a specific practical skill — apps like Elevate that train real abilities sidestep the transfer problem entirely.

Bad reasons:

• You expect to become broadly smarter — the evidence does not support this.
• You are using it instead of other things — that is the real risk.

What actually supports cognitive health

If your goal is a sharper, healthier mind, the research points to a set of unglamorous fundamentals — none of them an app:

• Physical exercise — some of the strongest evidence of anything for cognitive health.
• Quality sleep — when memory consolidates; poor sleep measurably impairs cognition.
• Social connection — consistently linked to better cognitive aging.
• Cardiovascular health — what is good for the heart is good for the brain.
• Genuine mental engagement — learning a language or instrument, real intellectual challenge.