You have probably seen the advertisements. A bright, polished app promises to sharpen your memory, boost your processing speed, and keep your brain young with just a few minutes of daily puzzles. Brain training games have become a multibillion-dollar industry, and their appeal is easy to understand. For adults over 40, the idea of protecting cognitive function through something as simple as a mobile game feels both hopeful and manageable.
But the question that matters most is also the one that rarely gets a straight answer. Do brain training apps actually improve cognitive function in any meaningful way? And if the evidence is less convincing than the marketing suggests, what should you be doing instead?
Key Takeaways
- A 2025 meta-analysis of 16 randomised controlled trials found that brain training games may improve performance on specific cognitive tasks, but long-term follow-up and real-world outcome data were largely absent.
- In 2016, the US Federal Trade Commission fined the maker of a leading brain training app $2 million for making unsupported claims about the product's cognitive benefits.
- The "transfer problem" remains the central challenge in brain training research. Getting better at a game does not necessarily translate into improved function in daily life.
- Learning new, challenging skills and regular physical exercise may offer stronger evidence for cognitive benefit than commercial brain training apps.
- Structured cognitive assessment provides a more reliable picture of brain function over time than game-based performance scores.
Why Brain Training Apps Have Become So Popular
The brain training market has grown rapidly over the past decade, driven by an ageing global population and rising awareness of cognitive decline. Hundreds of millions of downloads later, brain training apps have become one of the most visible categories in the health and wellness space. For many adults, opening an app feels like a low-stakes, proactive step toward protecting their future selves.
Part of the appeal lies in the underlying science. Neuroplasticity, the brain's ability to reorganise and form new neural connections throughout life, is well established. Research from the NIH-funded ACTIVE study, one of the largest cognitive training trials ever conducted, showed that certain structured interventions could produce measurable improvements in specific mental abilities over a 10-year follow-up period. That finding helped fuel an entire industry built around the idea that targeted exercises could keep the brain sharp.
However, there is an important distinction between structured cognitive training delivered by researchers in a clinical setting and the commercial brain training apps available for download today. Understanding that gap is essential for anyone asking whether brain games actually work.
What the Science Says About Brain Training Games Effectiveness
The research on brain training is more nuanced than most app advertisements would suggest.
A 2025 meta-analysis published in the Journal of Pharmacy and Bioallied Sciences reviewed 16 randomised controlled trials involving healthy adults and various brain training interventions, including video games, dual n-back tasks, memory strategy training, and virtual reality platforms. Of the 16 studies reviewed, 10 showed some improvement from baseline in cognitive measures such as working memory and processing speed. However, the review also noted significant variation across study designs, outcome measures, and intervention protocols. No pooled effect sizes were reported, and long-term follow-up data were largely absent.
Meanwhile, regulatory authorities have taken a harder line. In 2016, the US Federal Trade Commission settled charges against the maker of one of the most widely used brain training apps, finding that the company had made unsupported claims about the product's ability to reduce cognitive decline, improve work performance, and delay conditions such as Alzheimer's disease. The $2 million settlement sent a clear signal. Marketing promises had outpaced the available evidence.
Where Brain Training Shows Promise and Where Gaps Remain
The Transfer Problem. Why Getting Better at a Game May Not Mean a Better Brain
The central challenge in brain training research is what scientists call the transfer problem. When you practise a specific puzzle or game repeatedly, your brain becomes more efficient at that particular task. A person who trains daily with a word recall exercise will likely see their recall scores improve. But the critical question is whether that improvement carries over to unrelated cognitive tasks or everyday functioning.
Most research on brain games for adults that reports positive findings measures what scientists call near transfer, meaning improvements on tasks closely related to the one used in training. Far transfer, improvement in broader cognitive abilities or real-world outcomes such as managing finances, following group conversations, or navigating unfamiliar routes, has been much harder to demonstrate.
The distinction matters enormously for adults concerned about age-related cognitive changes. What most people want from a brain training app is not a higher score on a digital puzzle. What they want is sharper thinking in the moments that matter, at work, with family, and in daily decisions that require sustained attention, recall, and reasoning.
What May Actually Benefit Your Cognitive Function After 40
If brain training apps are not the clear answer, what does the evidence suggest? Several categories of activity have shown more consistent support in research on cognitive ageing.
Learning New and Challenging Skills
The Synapse Project, a study conducted at the University of Texas at Dallas, found that older adults who took up genuinely demanding new activities, such as digital photography or quilting, showed improvements in memory, processing speed, and reasoning after 14 weeks of regular engagement. Participants who spent the same amount of time on familiar, low-effort activities did not show the same gains. Researchers concluded that novelty and sustained cognitive effort, rather than social interaction alone, appeared to drive the benefit. The brain, much like a muscle, may respond best to challenges that push beyond the comfort zone.
Physical Exercise
Regular aerobic activity has been consistently linked to improved cognitive function in older adults. Walking, swimming, and cycling may help maintain hippocampal volume, a brain region critical for memory formation, and support the growth of new blood vessels that deliver oxygen to the brain. Building daily habits that support Brain Health by combining physical movement with other evidence-based lifestyle changes may offer more robust protection than any single training programme.
Neuroplasticity and Lifelong Learning
Staying socially connected, engaging in meaningful conversations, and pursuing educational interests have all been associated with a lower risk of Cognitive Decline in observational research. Neuroplasticity exercises that involve real-world complexity, social feedback, and emotional engagement appear to activate the brain more broadly than repetitive digital tasks. Learning a new language, picking up a musical instrument, or volunteering in an unfamiliar role all create the kind of cognitive demand that commercial brain games rarely replicate.
Structured Cognitive Assessment
Rather than relying on a game score to gauge cognitive ability, a more reliable approach may involve periodic structured assessment that measures performance across multiple cognitive domains. Ivory's Brain Function Test offers a validated starting point, evaluating key areas of cognition to establish a meaningful baseline. Regular brain health checks may provide a more complete and accurate picture of your cognition than a daily leaderboard ever could.
Conclusion
The honest answer to whether brain training apps actually improve cognitive function is that the evidence is mixed, and the most important questions remain open. Commercial brain training games may sharpen your performance on the tasks they train, but the leap from game score to real-world cognitive benefit has not been convincingly demonstrated.
What has stronger support is a broader approach to Cognitive Health. Learning something genuinely new, staying physically active, maintaining social connections, and monitoring your Cognitive Function with validated tools may offer more meaningful protection than any single app. For adults who want a structured, evidence-based way to track how their cognitive abilities are changing over time, the Ivory app measures performance across five cognitive domains- Reasoning, Memory, Attention, Coordination, and Perception- through personalised daily tasks. Each session takes about 8 to 10 minutes and builds a longitudinal Cognitive Score that reflects genuine cognitive trends rather than practice effects on a single game.
Note: The information in this blog is for educational and informational purposes only. Nothing here should be taken as medical advice or a substitute for professional evaluation. If you have concerns about your memory, attention, or daily functioning, please speak with a qualified healthcare provider.
Frequently Asked Questions
Do Brain Training Apps Actually Improve Cognitive Function?
Brain training apps may improve your performance on the specific tasks they train, such as pattern recognition or working memory games. However, there is limited evidence that these improvements carry over to real-world cognitive abilities like managing finances, following conversations, or making complex decisions. A 2025 meta-analysis found some short-term gains in study-specific measures, but long-term effects and real-world outcomes were not demonstrated. The evidence is best described as promising but incomplete.
Are Brain Training Games Backed by Scientific Research?
Some brain training approaches have been studied in controlled trials. The NIH-funded ACTIVE study showed that structured cognitive training could produce measurable improvements in specific abilities over 10 years. However, the training used in that study was led by researchers in clinical settings, not delivered through commercial apps. When regulatory authorities examined the claims made by one popular app, they found the marketing had outpaced the evidence, resulting in a $2 million FTC settlement in 2016.
What Is the Transfer Problem in Brain Training?
The transfer problem refers to the challenge of demonstrating that cognitive gains from brain training carry over to tasks beyond the one being practised. Near transfer, improvement on closely related tasks, has been observed in some studies. Far transfer, improvement in broader cognitive abilities or everyday activities, has been much harder to establish. For most adults concerned about cognitive ageing, far transfer is what would actually matter for daily life and long-term Cognitive Health.
What Activities Are Better Than Brain Games for Brain Health?
Research suggests that learning genuinely new and challenging skills may be more effective than repetitive brain games. The Synapse Project found that older adults who took up demanding new activities showed improvements in memory and reasoning after 14 weeks. Regular physical exercise, particularly aerobic activity such as walking or swimming, has also been consistently linked to better cognitive function. Social engagement, lifelong learning, and adequate sleep are additional factors that may support Cognitive Health as you age.
How Is a Cognitive Assessment Different from a Brain Training Game?
A cognitive assessment is a validated measurement tool designed to evaluate how your brain is performing across multiple domains, including memory, attention, reasoning, and processing speed. A brain training game is designed to exercise one or two specific skills and improve your score on that particular game. The key difference is purpose. An assessment gives you a reliable baseline and tracks genuine cognitive trends over time, while a game score reflects how well you have practised that particular task.
Should I Stop Playing Brain Games Entirely?
Not necessarily. Brain games may be an enjoyable way to challenge yourself, and there is no evidence that they are harmful. However, relying on brain games as your primary strategy for protecting Cognitive Function is not well supported by current research. A more balanced approach would combine brain games, if you enjoy them, with physical exercise, learning new skills, social engagement, and periodic cognitive assessment to monitor how your brain is actually performing over time.
Sources
- Somaa FA, Khan A, Arafah A (2025). "Efficacy of Brain Training Games on the Cognitive Functioning, Working Memory and Processing Speed of Healthy Individuals. A Meta-Analysis." Journal of Pharmacy & Bioallied Sciences, 17(Suppl 2), S1719–S1723. PubMed Central
- US Federal Trade Commission (2016). "Lumosity to Pay $2 Million to Settle FTC Deceptive Advertising Charges for Its 'Brain Training' Program." FTC
- McDonough IM et al. (2015). "The Synapse Project. Engagement in Mentally Stimulating Activities Is Associated with Neural Efficiency." Restorative Neurology and Neuroscience, 33(6), 865–882.
- Rebok GW et al. (2014). "Ten-Year Effects of the Advanced Cognitive Training for Independent and Vital Elderly Cognitive Intervention Trial on Cognition and Everyday Functioning in Older Adults." Journal of the American Geriatrics Society, 62(1), 16–24.
