# Gridbench: Recall & Reflex — Reaction Time & Focus Test

> Reaction Time & Focus Test (iPhone/iPad app by Roman Nikitin.)

- Source: https://appshunter.io/ios/app/gridbench-recall-and-reflex/id6803071247 (this page in markdown: same URL + `.md`)
- Developer: [Roman Nikitin](https://appshunter.io/developer/1891402343)
- Category: Games, Entertainment, Casual, Puzzle
- Price: Free
- Age rating: 12+
- Requires: iOS 16.4 · 57 MB
- Languages: American English
- Released: 2026-09-20
- Data updated: 2026-10-31

## What is Gridbench?

Gridbench is a benchmark, not a game. You take a test, you get a number, and you
find out where that number sits among everyone else's.

SIX TESTS

Visual Memory — how many positions you can hold at once, from a single flash.
Overdrive — the same task against the clock, ranked by how fast you clear ten levels.
Reaction Time — simple reaction speed. Median of five, false starts caught.
Precision — how close your recall lands when there is no grid to snap to.
Filter — whether you can stop a hand that has already started moving.
Scan — memory on top of deciding what is relevant in the first place.

DAILY CHALLENGE

One board a day, identical for every player. The first attempt is the one that
counts. The grid you share afterwards shows the path you took through it, not
just the total — which is what makes two results comparable at all.

CHALLENGE A FRIEND

A challenge link carries the exact board you played: same positions, same
timing, same order. No curve, no averages — whoever does better does better.

RESULTS YOU CAN CHECK

Every run that enters a leaderboard is replayed on the server using the same
code your phone ran. A result that cannot be reproduced does not get in.

Board themes change colour and never difficulty. The contrast between the
stimulus and the background is held equal across all of them, and a test
enforces it — so no theme can make the test easier.

WHAT IT IS NOT

Gridbench measures performance on visual and motor tasks. It is not a medical
device and not a diagnostic tool. It does not train your brain, improve your
memory, or tell you anything about your health. It is a ruler, not a treatment.

No ads. No analytics SDK. No account, no email, no password. Everything you
store is deletable from inside the app, in one step.

## Is Gridbench safe?

Not enough ratings yet to assess Gridbench.

## Is Gridbench legit?

Gridbench: Recall & Reflex has limited verification signals. The AppsHunter Legitimacy Score for Gridbench is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-09-20

No release notes.

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## More apps by Roman Nikitin

- [Skein: Practice Journal](https://appshunter.io/ios/app/skein-practice-journal/id6761774248)

All apps by Roman Nikitin: https://appshunter.io/developer/1891402343

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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 2026-10-31.*