Cognition & Healthspan · Updated September 2026
Brain training apps reliably make you better at brain training apps. Whether that transfers to anything else is the entire question, and the honest answer favours exercise, hearing, sleep and vascular risk over software.
The central question in cognitive training is transfer. Practising a working memory task will improve performance on that task — this is uncontroversial and is simply learning. What matters is whether the improvement extends to untrained tasks in the same domain, and beyond that to everyday functioning: remembering names, managing finances, driving safely, staying independent.
The evidence supports near transfer well and far transfer poorly. Reviews of commercial brain training programmes have repeatedly found robust improvements on trained tasks, more modest improvements on closely related tasks, and limited evidence of meaningful transfer to everyday cognitive function. A widely publicised consensus statement from a large group of scientists made exactly this point about the gap between marketing and evidence, and regulatory action has been taken against brain training marketing claims in the past.
The ACTIVE trial, a large randomised study of cognitive training in older adults, found that a specific speed-of-processing training produced durable effects, with later analyses reporting associations with reduced dementia risk in participants who completed booster sessions.
That finding is genuinely interesting and has been debated, including on methodological grounds. It is also notably specific — a particular training type, a particular dose — and does not generalise into support for brain training apps in general.
| Intervention | Evidence for cognition | Effort | Cost |
|---|---|---|---|
| Aerobic and resistance exercise | Good and consistent | High | Low |
| Treating hearing loss | Good in higher-risk groups | Moderate | $$$ |
| Vascular risk management (BP, lipids, glucose) | Good | Moderate | Low |
| Sleep quality and apnea treatment | Good | Moderate | Varies |
| Multidomain programmes (FINGER-style) | Good | High | Low |
| Social engagement and novel learning | Reasonable | Moderate | Low |
| Commercial brain training apps | Near transfer only | Low | $ |
The FINGER trial in Finland randomised older adults at risk of cognitive decline to a multidomain intervention — nutritional guidance, exercise, cognitive training and vascular risk monitoring — or to general health advice, and reported benefit in the intervention group. Notably, cognitive training was one component among several, which is broadly how the evidence points: the combination does the work.
Separate from training, there is a case for periodic cognitive assessment: establishing a personal baseline while healthy makes later change easier to detect, and change from your own baseline is far more informative than a single score against a population norm.
The important caveats are that consumer cognitive tests are screening tools rather than diagnostic instruments, that scores are affected by sleep, mood, medication, illness and practice effects from repeated testing, and that anxiety about scores is itself a common and unhelpful outcome. Formal cognitive assessment for a genuine concern belongs with a clinician, who can distinguish age-related change from depression, medication effects, thyroid dysfunction, B12 deficiency and other reversible causes before considering neurodegenerative disease.
This is general information, not medical advice. Memory or thinking changes that concern you or the people around you — particularly getting lost in familiar places, difficulty with familiar tasks, word-finding problems, personality change or repeated questioning — warrant a clinical assessment rather than an app. Several causes of cognitive change are reversible when identified, which is a strong argument for assessment rather than self-monitoring.
A product that describes improving performance on its own tasks rather than promising dementia prevention or general intelligence gains.
Independent peer-reviewed research on the specific programme, rather than in-house studies or citations of unrelated research.
Assessment tools that store results over time, since change from your own baseline is far more informative than a single score.
Reasonable terms, given that the evidence does not support indefinite paid use as a cognitive health strategy.
Ranked by the strength of evidence for effects that reach beyond the trained task. The top entries are not software, which is the honest ordering.
Exercise has more consistent evidence for cognitive outcomes than any commercial brain training product, and it simultaneously addresses vascular risk, sarcopenia, bone density and fall risk. Listed first because that is where the evidence points.
View on AmazonMidlife hypertension is an established modifiable dementia risk factor, and blood pressure is silent until it is not. A validated upper-arm monitor with a correctly sized cuff addresses a risk factor with far better evidence than any training app.
View on AmazonEstablishing a personal baseline while healthy makes later change easier to detect, and change from your own baseline is more informative than a population comparison. Watch for practice effects with frequent repetition, and take genuine concerns to a clinician rather than an app.
View on AmazonThe one training type with a large randomised trial reporting durable effects, with later analyses suggesting reduced dementia risk in participants completing booster sessions — a finding that has been debated on methodological grounds. Specific to this training type and dose, and not a general endorsement of brain training software.
View on AmazonLearning a genuinely new complex skill engages attention, memory, motor learning and often social interaction simultaneously, which is closer to the cognitive demands of everyday life than a timed matching task on a phone. It also has the advantage of being worth doing regardless of the cognitive question.
View on AmazonThey reliably improve performance on the tasks they train and on closely related tasks. What the evidence does not consistently support is transfer to everyday cognitive function — remembering names, managing finances, staying independent. A widely publicised scientific consensus statement made exactly this point about the gap between marketing and evidence, and regulatory action has been taken over brain training claims in the past.
Exercise, hearing, sleep and vascular risk have better and more consistent evidence than any software. Regular aerobic and resistance training, treating hearing loss, managing blood pressure, lipids and glucose, treating sleep apnea, not smoking, and staying socially and intellectually engaged. The FINGER trial suggests the combination matters more than any single component.
It was, for a specific training type. ACTIVE found that speed-of-processing training in older adults produced durable effects, and later analyses reported associations with reduced dementia risk among participants who completed booster sessions. That finding has been debated on methodological grounds and is specific to a particular training type and dose — it does not generalise into support for brain training apps broadly.
There is a reasonable case for establishing a baseline while healthy, because change from your own baseline is far more informative than a single score against a population norm. Consumer tests are screening tools rather than diagnostic ones, and scores move with sleep, mood, medication, illness and practice effects. Genuine concern about memory or thinking belongs with a clinician.
When they concern you or the people around you — particularly getting lost in familiar places, difficulty with previously routine tasks, persistent word-finding problems, personality change, or repeatedly asking the same questions. This matters because several causes of cognitive change are reversible when identified, including depression, medication effects, thyroid dysfunction and B12 deficiency.
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