# Extreme Concentration Trainer

> Extreme Concentration Trainer (iPhone/iPad app by Petro Benedyk.)

- Source: https://appshunter.io/ios/app/extreme-concentration-trainer/id6810893676 (this page in markdown: same URL + `.md`)
- Developer: [Petro Benedyk](https://appshunter.io/developer/6810893678)
- Category: Education
- Price: $2.99
- Age rating: 4+
- Requires: iOS 17.6 · 4 MB
- Languages: American English
- Released: 2026-10-09
- Data updated: 2026-10-09
- User reviews in markdown: https://appshunter.io/ios/app/extreme-concentration-trainer/id6810893676/reviews.md

## What is Extreme Concentration Trainer?

Extreme Concentration Trainer is a Bourdon-style attention drill. A highlight moves through a field of letters. You mark assigned symbols with 1, 2, and 3 (or 1–4 / 1–5 in Settings), and press Space to skip everything else.

Correct marks light up green. Missed targets light up yellow. Wrong marks light up red. Pace is yours — Space sets the tempo.

Customize letter size, spacing, background color, and capitals (a–z or A–Z). Scores stay on this device. No account.

Works on iPhone, iPad, and Mac.

## Chart rankings

- #157 in Top Paid · Education (US App Store)


## Version history (last 1 release)

### 1.0 — 2026-10-09

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 2026-10-09.*