Do Brain Training Games Actually Work, or Are They a Waste of Time?

You used to read a page and remember the details. Now you re-read the same paragraph three times and still feel like it did not stick. At work, you lose your train of thought mid-sentence. At home, you forget a conversation you had just that morning. None of it is dramatic enough to mention to anyone, but quietly, it adds up.

So when a brain training app shows up in your feed promising sharper memory and better focus in just ten minutes a day, it feels like exactly what you need. And you are not alone in thinking that. Millions of people across India and around the world have downloaded these apps hoping for the same thing, a simple daily habit that keeps their mind from slipping.

But wanting something to work and knowing whether it actually does are two different things. In this piece, we look at what research says about whether brain training games work, which activities may genuinely support Cognitive Health, and what is worth your time versus what is just a well-designed promise.

Key takeaways

• Brain training games can sharpen specific in-game skills, but evidence for broad, real-world cognitive improvement remains limited.
• A major 20-year trial (the ACTIVE study) found that one specific type of speed training, with booster sessions, was associated with a 25% lower risk of dementia. Most commercial apps do not offer this type of training.
• Crossword puzzles outperformed cognitive games in a clinical trial with older adults who had Mild Cognitive Impairment.
• Activities like learning a new skill, regular physical exercise, and social engagement may offer broader cognitive benefits than any single app.
• No brain game has been proven to prevent or cure dementia or Alzheimer's disease.
• A structured Cognitive Assessment can give you a clearer picture of where your Brain Health stands than any app score.

What exactly is brain training?

Brain training refers to structured exercises, usually on a computer or phone, designed to challenge specific mental skills like memory, attention, and processing speed. Most brain training apps package these exercises as short, colourful games you can play in a few minutes each day.

The idea behind them is rooted in neuroplasticity, which is the brain's ability to form new connections and adapt throughout life. The concept itself is sound, because our brains genuinely can change in response to new challenges. The real debate is whether these particular games create changes that matter outside the app.

How brain training apps typically work

Most programmes follow a similar pattern. You complete short tasks targeting skills like pattern recognition, working memory, or reaction time. The app tracks your scores and adjusts difficulty as you improve. You also receive a daily performance summary or "brain score."

The games are often well-designed and enjoyable. But the real question is whether improving your score on a memory-matching game translates to remembering where you left your car keys.

The "transfer problem" and why it matters

When you practise a specific brain game, you get better at that game, and almost every study agrees on that point. But does that improvement carry over to other tasks in everyday life? Researchers call this the transfer problem, and it sits at the heart of the debate.

• Near transfer has been documented in several studies. Getting better at a speed-based game may help you with similar speed-based tasks.
• Far transfer is a different story. Improvement in a game leading to better performance on unrelated real-world tasks is much harder to demonstrate.
• A 2014 consensus statement from the Stanford Centre on Longevity, signed by over 70 neuroscientists, cautioned that there was no compelling evidence that brain games improve general cognitive performance in daily life [1].
• Shortly after, an international group of over 130 scientists published a counter-statement arguing that the evidence for cognitive training benefits was more substantial than the first group acknowledged [2].

Even among experts, there is no full agreement on this topic. Some forms of cognitive training may offer specific benefits, but the broad claims made by many brain training apps go beyond what the research supports. For a closer look at the nuances, our post on whether brain training can really work digs deeper into both sides.

The Lumosity fine: a cautionary example

One of the most well-known cases in this space involves Lumosity. In 2016, the U.S. Federal Trade Commission fined Lumosity's parent company $2 million for claims it could not back up with adequate scientific evidence. The FTC found that Lumosity's advertisements suggested the games could improve performance at work and school, and reduce the risk of conditions like Alzheimer's, without sufficient research to support those promises.

The takeaway here is not that all brain games are useless, but rather that consumers should be cautious about any product that makes sweeping health promises without strong evidence behind them.

What the ACTIVE study found

Not all brain training research paints a negative picture, though. The ACTIVE study (Advanced Cognitive Training for Independent and Vital Elderly) is one of the largest and longest-running trials in this space, tracking nearly 2,800 adults aged 65 and older for 20 years.

Key findings from the study

• Participants who received "speed of processing" training, along with follow-up booster sessions, were 25% less likely to be diagnosed with dementia over 20 years [3].
• Memory and reasoning training did not show the same long-term benefit for dementia risk.
• Speed training involved computerised tasks that adapted difficulty to each participant's performance level.

What makes the ACTIVE study stand out is its scale as a randomised controlled trial and its unusually long duration. However, the specific speed training used in this study is not the same as what most consumer brain training apps offer, so the findings should not be applied broadly to all apps on the market.

Crosswords vs. brain games, a surprise result

A 2022 trial published in NEJM Evidence, led by researchers at Columbia University and Duke University, produced a result that surprised even the investigators. The study compared crossword puzzles with cognitive game training in 107 participants with Mild Cognitive Impairment, with an average age of 71, over 78 weeks.

What the study showed

The crossword group showed greater cognitive improvement, better daily functioning, and less brain shrinkage on MRI scans compared to the cognitive game group. One possible explanation is that crosswords engage multiple cognitive processes at once, including language processing, working memory, pattern matching, and long-term memory retrieval.

What activities may actually support Cognitive Health?

If brain training apps are not the full answer, what else might help? A growing body of research points to a combination of mentally engaging and physically active habits as the more reliable path.

Activities with stronger evidence

• Learning a new skill like a language, a musical instrument, or a craft may offer broad cognitive benefits because it challenges the brain in varied and unpredictable ways. The Synapse Project, published in Psychological Science, found that older adults who took up digital photography or quilting showed signs of improved memory [4].
• Regular physical exercise is one of the most consistently supported factors for Brain Health across research. Even simple daily movement may help keep your mind sharp over time.
• Social engagement may keep the brain active in ways that solo games cannot replicate, because real conversations require constant adaptation, empathy, and recall.
• Traditional puzzles like crosswords, Sudoku, and jigsaw puzzles, done regularly, may help maintain cognitive sharpness. Pairing these with evidence-based brain exercises could add further benefit.

What makes a brain activity effective?

Not all mental activities offer the same potential benefit. Activities are most likely to support the brain when they push you outside your comfort zone with something genuinely novel, when they require real effort and concentration, when they engage multiple cognitive skills rather than drilling one narrow task, and when they are enjoyable enough to sustain over time, because consistency matters more than intensity.

So, are brain games effective at all?

Are brain games effective? The honest answer is that it depends on what you expect from them. Brain games for adults can be a fun part of a broader Brain Health routine, especially when they challenge you in new ways. But no single app should be treated as a complete solution for Cognitive Health. What matters more is whether the activities genuinely challenge your mind, adapt to your level, and form part of a broader approach that includes physical activity, social connection, sleep, and a balanced diet.

Knowing where you stand right now is a practical first step. A clinically validated Cognitive Assessment can provide a clear baseline, telling you which specific areas of cognition, such as attention, memory, or processing speed, may need more support. Think of it the way you would think about an annual health checkup. You would not rely on a step counter alone to judge your heart health. In the same way, a structured assessment offers a more meaningful view of your Cognitive Health than an app score ever could.

How to pick a brain training app that genuinely helps

With hundreds of brain training apps on the market, most of them making similar promises, knowing what to look for can save you both time and disappointment. Based on what the research in this piece points to, a few things separate a genuinely useful app from one that is mostly packaging.

What to look for

• Personalised difficulty. The app should adapt to your performance rather than running the same tasks for every user.
• Multiple cognitive domains. Look for apps that train across areas like attention, memory, speed, concentration, and flexibility rather than just one narrow skill.
• Trackable progress over time. A meaningful app should show you how your scores change week to week, so you are learning something about your own patterns.
• Grounded in neuroscience. Check whether the tasks are designed around published cognitive science, not just made to look colourful and feel satisfying.

Where Ivory fits in

The Ivory app is one example of an app built around these principles. It gives you a Cognitive Score based on five domains, Attention, Memory, Flexibility, Concentration, and Speed. You log in each day, complete a set of personalised tasks that take about 8 to 10 minutes, and over time the app tracks how your scores shift across these areas.

Alongside the daily tasks, the app also includes games designed around neuroscience rather than just entertainment. But what matters most is the framing. Ivory does not position itself as a replacement for a healthy lifestyle. Physical exercise, quality sleep, social connection, and a balanced diet remain the foundation of long-term Brain Health. An app like this is best thought of as a structured add-on to those habits, and a far better use of ten minutes of screen time than doomscrolling before bed.

Conclusion

Brain training games are not a waste of time, but they are not a magic fix either. The cognitive training benefits from specific, well-designed exercises may be real, but they are narrower than most app marketing suggests. What truly matters for long-term Brain Health is a combination of mental challenge, physical activity, social connection, and knowing your own cognitive baseline.

If you are looking for a place to start, download the Ivory app and spend ten minutes a day building a clearer picture of your Cognitive Health. 

Note. This blog is for educational and informational purposes only. The content shared here is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for guidance on your individual health needs.

FAQs

Do brain training games actually improve memory?

Brain training games can improve your performance on specific tasks within the game. Whether that improvement extends to everyday memory, like remembering names or appointments, is less clear. Most research shows that gains tend to stay within the trained skill rather than broadly improving memory in daily life.

Are brain training apps worth paying for?

Some paid brain training apps are well-designed and enjoyable. However, free activities like crossword puzzles, learning a new language, or picking up a musical instrument may offer equal or greater cognitive benefits. Before subscribing, consider whether the app genuinely challenges you in new ways or simply repeats similar tasks.

What is the best brain training app for adults?

No single app has been proven to broadly improve Cognitive Function across the board. The best brain training app for you is one that adapts to your skill level, challenges multiple cognitive areas, and keeps you engaged over time. Look for programmes grounded in published research rather than marketing claims.

Can brain games prevent dementia or Alzheimer's?

No brain game has been proven to prevent dementia or Alzheimer's disease. The ACTIVE study showed that one specific type of speed training, combined with booster sessions, was associated with a 25% lower risk of dementia over 20 years. But that training is different from most commercial apps, and more research is needed before any firm claims can be made.

What activities are better than brain games for Cognitive Health?

Activities that challenge your brain in varied and unpredictable ways may offer broader benefits. Learning a musical instrument, picking up a new language, doing crossword puzzles, staying physically active, and maintaining social connections are all linked to better cognitive outcomes in research. A mix of mental and physical activities is generally considered more beneficial than any single game.

How do I know if my Cognitive Health needs attention?

Occasional forgetfulness is normal, especially during stressful periods. But if memory lapses are becoming more frequent, affecting your work or daily routine, or worrying your family, a structured Cognitive Assessment can help identify whether there are areas that need attention. Subtle cognitive changes can show up years before a clinical diagnosis, so early awareness matters.

Sources

1. Stanford Centre on Longevity, A Consensus on the Brain Training Industry from the Scientific Community, 2014
2. Frontiers in Psychology via PMC, A Large-Scale, Cross-Sectional Investigation Into the Efficacy of Brain Training, 2019
3. ScienceDaily, Just 5 Weeks of Brain Training May Protect Against Dementia for 20 Years, 2026
4. PubMed, The Impact of Sustained Engagement on Cognitive Function in Older Adults and the Synapse Project, 2014