# Reaction Time Test: BrainDaily — Memory, focus, rhythm in 1 min

> Memory, focus, rhythm in 1 min (iPhone/iPad app by Byeongsoo Kang.)

- Source: https://appshunter.io/ios/app/reaction-time-test-braindaily/id6809346221 (this page in markdown: same URL + `.md`)
- Developer: [Byeongsoo Kang](https://appshunter.io/developer/6809346223)
- Category: Lifestyle
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English, Korean
- Released: 2026-09-08
- Data updated: 2026-09-23
- User reviews in markdown: https://appshunter.io/ios/app/reaction-time-test-braindaily/id6809346221/reviews.md

## What is Reaction Time Test?

Four or five minutes a day to see how your head is doing today.

■ Three checks a day, 4-5 minutes
The date decides them. You do not pick.
Reaction Time runs every day; the other two rotate — that way there is always a line back to yesterday.
· Reaction Time — tap the moment the screen changes
· Color & Word — choose the ink color, not the word
· Code Memory — see digits for a moment, then type them back
· Keep the Beat — listen, then tap at the same pace
· Spot the Difference — one cell differs between two pictures
· Number Trail — tap scattered numbers in order from 1
· Arrow Direction — ignore the sides, watch only the middle
· Digits Backward — type what you saw, in reverse
· Count the Dots — how many, quickly
· Path Memory — retrace the cells in the order they lit up
· Letter Search — find only the target letter among many
· Find the Rule — see three groups, choose what comes next

■ Reaction Time is measured 20 times — one minute
One or two taps get lost in chance. So Reaction Time runs 20 trials — about a minute —
and also shows how many responses were slower than half a second.
The first three runs are marked as getting-used-to runs and kept out of the trend:
at the start everyone improves simply by getting used to the task.

■ No competing with anyone
No leaderboards. No scores to beat. No comparison with your age group.
The only thing you are measured against is yesterday's you.

■ Note how the day was
One tap after a check records the day's condition — slept well, short on sleep, coffee, alcohol.
As records build up, the app tells you how days like that went for you.
When the evidence is thin, it says nothing at all.

■ Records stay on this iPhone
This app does not use the internet. There is no account.
What you measure is stored on the device and sent nowhere.
You can delete everything at any time, or export it as plain text.

■ It will not tell you that you did badly
Condition changes every day. On a short night, slow is what you would expect.
The app does not grade you. It tells you how today differed from yesterday, and nothing more.

■ Who it is for
· Anyone who wants to measure a day that feels unusually foggy
· Anyone who likes a record kept in numbers
· Anyone looking for an app that ends quickly

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These checks are for personal reference and interest only.
They are not a medical test or diagnosis. If you are worried about your health, speak to a professional.


## Version history (last 3 releases)

### 1.0.1 — 2026-09-22

Three fixes.

· Practice and Mix would stop instead of moving on when a task ended. Fixed.
· In Count the Dots the correct answer was always the third option. It now lands in a different place each time.
· Keep the Beat gave no feedback while you tapped. There is now a cross in the middle, and every tap answers with colour and a click.

Please note: Count the Dots and Keep the Beat are measured differently from now on. Earlier results are still saved, but they are left out of the trend — they cannot sit side by side.

### 1.0 — 2026-09-22

English is here. The whole app speaks English now, not just the store page.

· Reaction Time is measured 20 times — about a minute. One or two taps get lost in chance.
· A fixation dot sits at the centre while you wait, so your eyes stay in one place.
· A new home screen, and a short walkthrough the first time you open the app.
· After a run you see all twenty taps, one dot each.

Please note: reaction times measured before this update are still saved, but they are left out of the trend. The way it is measured changed, so they cannot sit side by side.

### 0.1.0 — 2026-09-09

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-23.*