In short
- Percore is the only app here that measures all four senses — colour, pitch, duration and space — with scoring formulas it publishes. The daily practice is free. This list is on Percore's own site, and that is why it is first.
- Sensorium is the closest in spirit: one-minute daily drills across vision, hearing, reaction and motor control, with a one-off US$4.99 upgrade.
- Sense Test is free and tests eight everyday judgements — time, angle, length, colour — but it is a test with a global ranking, not a daily practice.
- Human Benchmark and the X-Rite hue test are the web standards for a one-off measurement of reaction time and hue discrimination.
- Lumosity-style brain training is a different product with a different claim, and the evidence does not support that claim. It is on this list so you can tell the two apart.
How this list was made
Every app and test below was checked against its own App Store listing or its own site on 21 October 2026. Prices are what the listings showed on that date in US dollars; stores set local prices. We did not use star ratings or download counts. One thing to say plainly: this list is published by Percore, and Percore is on it. It is first because it is the only entry that covers vision, hearing, timing and space in one practice with scoring it publishes — not because it is the right tool for every need below. Where a specialist is the better choice, the entry says so.
What makes a perception training app worth using
The category is new enough that almost anything with a colour in it calls itself perception training. Five things separate a practice from a game, and the entries below are judged against them.
- The target is hidden while you answer. Matching a colour you can still see is a motor task. The perceptual part is holding it in mind.
- You reproduce, rather than choose. Three sliders tell you which dimension you misjudged. Six swatches tell you whether you were lucky.
- The comparison is measured, in units. Degrees of hue, cents of pitch, per cent of a duration. A green tick is not feedback.
- There is a record, and it is self-relative. One session is noise. Your series against your own earlier weeks is the signal; a global leaderboard is a different product.
- The claims stay inside the measurement. An app that measures hue discrimination can promise better hue discrimination. One that promises a sharper mind has left the evidence behind — see perception training vs brain training.
The apps
Percore
- Best for
- All four senses, daily, with published scoring
- Platform
- iPhone
- Price
- Free daily practice; Pro US$39.99 a year (seven-day trial) or US$4.99 a week
Percore is a two-minute daily calibration across four senses. A colour fills the screen and disappears; you rebuild it with hue, saturation and brightness. A tone plays once; you find it again by dragging a waveform, and your error is reported in cents. A pulse runs and stops; you hold a press for the same length. A triangle sits on a grid, turned and sized, then vanishes; you put it back. Five rounds each, the same targets for everyone on the same day, each scored 0 to 100 by a formula the senses page states in words.
What accumulates is a rolling average per sense, a radar, and one written sentence after each session about what moved — all measured against your own recent weeks, never against other people. There is no leaderboard. Pro adds practice in any of seventeen modules — Contrast, Brightness, Peripheral Vision, Rhythm, Direction, Timbre, Reaction, Tempo, Prediction, Distance, Rotation, Motion, Balance and the four daily ones — plus a personal ritual of your own four, the weekly reading and longer history. What is Percore? has the whole account.
It makes no claim about intelligence, memory or focus, and says so in the app.
The limit. iPhone only, no Android; and it measures senses rather than teaching them — for interval drills or a graded course, pair it with a specialist.
Sensorium: Train Your Senses
- Best for
- Sixty-second daily drills with a one-off price
- Platform
- iPhone and iPad
- Price
- Free; Pro US$4.99 once
Sensorium is the entry closest to Percore in intent. Short daily micro-drills — about a minute of training — cover visual discrimination (faint targets, subtle hue shifts), auditory precision (frequencies at the edge of hearing), reaction speed and motor control, the last using the device's sensors against a simulated tremor. Each drill is scored 0 to 100, progress sits on a multi-axis radar, and the Pro upgrade is a single purchase rather than a subscription, which in 2026 is worth noticing.
The free tier is one activation a day with three core drills. Pro opens the full drill library (the listing's version notes give the count as twenty-odd), lets you choose a focus, and adds a mode that races your personal best in real time.
The limit. Its drills lean toward thresholds and speed — detect the faint thing, react fast — rather than reproducing a target from memory, so colour and pitch memory are not what it measures.
Sense Test – Prove it
- Best for
- A free one-off read of eight everyday judgements
- Platform
- iPhone
- Price
- Free
Sense Test is entirely free and tests eight things: time sense (hold a button for a stated duration), angle sense (drag to a target angle), length sense (match a reference line), counting sense (dots that flash briefly), tempo sense (tap steadily), midpoint sense (tap the exact centre of a shape), colour sense (RGB sliders to recreate a target) and percentage sense (estimate how full a chart is). Several of these are genuine reproduction tasks, which is more than most apps in the category manage, and it works offline.
It is built as a test with a global ranking rather than as a daily practice with a self-relative record, so it is a good way to find out which of your judgements is off, and a less good way to watch it change.
The limit. Scores compare you with everyone rather than with yourself, and there is no daily structure or trend reading.
Human Benchmark
- Best for
- The reference reaction-time test, plus memory and typing tests
- Platform
- Web
- Price
- Free
Human Benchmark is the site everyone has used at least once: the screen turns green, you click, and you get a number in milliseconds. It also offers sequence memory, number memory, visual memory, verbal memory, aim and typing tests, with percentile charts built from an enormous pool of results. For reaction time it is the de facto standard, and a free account keeps a history.
Two cautions. The number includes your display, browser and input latency, so it is comparable only with itself on the same machine. And it is a test battery, not a practice: there is no target hidden from you and nothing to reproduce. The reaction-time list goes into how to use it fairly.
The limit. A measurement site rather than a training one, and the memory tests are cognitive tasks, not perceptual ones.
X-Rite Color Challenge and Hue Test
- Best for
- A single, credible read of your hue discrimination
- Platform
- Web
- Price
- Free
This is the free online version of the Farnsworth-Munsell 100 Hue Test, the physical colour-discrimination kit used in print, paint and textile industries. Four rows of colour chips appear with the ends fixed; you drag the middle chips into hue order and score the test. Lower is better, zero is perfect, and the result shows where in the spectrum your discrimination is weakest, with a comparison by age range.
X-Rite itself says the online version is not a replacement for the physical test, because monitors differ. It is still the most credible single measurement of hue discrimination you can take for free, and the colour tests list sets it beside the alternatives.
The limit. It is a one-off ordering test, not a daily practice, and it measures discrimination between adjacent hues rather than colour memory.
Functional Ear Trainer
- Best for
- The hearing specialist: learning to hear notes inside a key
- Platform
- iOS and Android
- Price
- Free, with in-app purchases
If what you want from hearing is musical — to hear a melody and know where its notes sit — this is the specialist. Functional Ear Trainer plays a cadence to establish a key, then one note, and asks which scale degree it is. That is the skill transcription and playing by ear actually use, and the method (Alain Benbassat's) is the one most teachers point to. The core is free; about ten minutes a day is the suggested dose.
It is single-minded, which is the point. For the wider field — intervals, chords, rhythm, dictation, pitch memory — the ear training list compares six apps.
The limit. Hearing only, and one method within hearing; it does not measure pitch memory in cents or touch any other sense.
Peripheral Vision Trainer
- Best for
- Schulte-table drills for the edge of sight
- Platform
- iPhone and iPad
- Price
- Free with ads; Pro US$11.99 once or US$5.99 a year to remove them
Peripheral Vision Trainer is built on one classic exercise, the Schulte table: a grid of shuffled numbers you tap in sequence as fast as you can while keeping your eyes on the centre. Grids run from 4×4 to 7×7, the developer says existing features stay free, and Pro only removes the ads. It has a global leaderboard for times.
The developer's claims extend to attention, processing speed, memory and speed reading. Those are not independently verified, and the honest description is narrower: it is a timed search task that encourages you to use the edges of your vision. How to train peripheral vision sets out what that can and cannot do.
The limit. One exercise type, and the claims on the listing run well ahead of what a Schulte table measures.
Lumosity — and why it is not perception training
- Best for
- Understanding the difference between this list and brain training
- Platform
- iOS, Android and web
- Price
- Free tier of a few games a day; Premium by subscription (listings vary by region)
Lumosity is the best-known brain-training product, and it is here as the contrast, not as a recommendation. Its games are polished and some of them involve perception — spotting a shape, tracking a moving object — but the product's claim is different in kind: that playing them improves attention, memory, flexibility and speed in general. The most careful review of that literature, published in Psychological Science in the Public Interest in 2016, found that brain training improves the trained games, improves closely related tasks less, and shows no convincing improvement in everyday cognition. In 2016 the US Federal Trade Commission settled deceptive-advertising charges with Lumosity's maker over exactly these claims.
None of that makes the games bad. It makes the claim unsupported. A perception training app promises less — that the measured judgement improves — and that is the promise the evidence can carry. Best Lumosity alternatives is the list for someone who wants a daily practice without the overclaim.
The limit. The product promises transfer to everyday cognition, and the evidence does not support that promise.
Which one, for which need
| You want to… | Start with |
|---|---|
| Measure colour, pitch, duration and space daily, with the formulas published | Percore |
| Do a one-minute drill a day and pay once | Sensorium |
| Find out, free, which of eight everyday judgements is off | Sense Test |
| Get the standard reaction-time number | Human Benchmark |
| Take a credible hue-discrimination test once | X-Rite hue test |
| Learn to hear notes inside a key | Functional Ear Trainer |
| Drill the edge of your vision with a Schulte table | Peripheral Vision Trainer |
| Play polished cognitive games, knowing what they do not prove | Lumosity |
If the category itself is new to you, What is perception training? defines it, and How to train your senses is the practical routine, with or without any of these.
Measure all four senses, free, in two minutes.
Download on the App StoreFrequently asked
What is the best free perception training app?
For a daily practice across four senses, Percore's daily calibration is free and not a trial. For a one-off read of eight everyday judgements, Sense Test is entirely free. For a single reaction-time or hue-discrimination number, Human Benchmark and the X-Rite hue test are free on the web.
Is perception training the same as brain training?
No. Brain training claims that practising its games improves general abilities such as memory or attention; the 2016 review in Psychological Science in the Public Interest found no convincing evidence of that. Perception training claims only that the measured sensory judgement improves, which is what perceptual-learning research supports.
Do perception training apps actually work?
For the thing they measure, yes: practising a sensory discrimination with trial-by-trial feedback improves it, and the gain lasts. The research also finds that gains are specific to the trained task. Expect to get better at the measured judgement, not at something else.
Why is Percore first on a list published by Percore?
Because it is the only entry that measures all four senses with scoring it publishes, which is the criterion the list is built on. Where a specialist is better — ear training, a one-off hue test — the entry says so and names it. Judge the list by whether that holds.
Are there perception training apps for Android?
Functional Ear Trainer, Lumosity and the web tools (Human Benchmark, X-Rite) work on Android or in any browser. Percore, Sensorium, Sense Test and Peripheral Vision Trainer were iOS-only on 21 October 2026.
Were these apps tested?
Each was checked against its own listing or site on 21 October 2026, and the descriptions stay inside what those say. Prices are as shown in US dollars on that date; stores change prices and free tiers without notice.