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Stroop Rush shows you a colour word printed in a different colour — the word "BLUE" written in red ink. You tap the colour it is printed in, not the word it spells. Your reading reflex fires first and you have to override it, which is the whole exercise. A streak multiplier rewards a clean run.

Schulte Grid scatters the numbers 1 to 25 across a five-by-five board. Find them in order, as fast as you can, ideally without moving your eyes much.

Both run at three difficulties — Chill, Classic and Blitz — which change how long you get and how fast the pressure builds.

Yes, and this was a design requirement rather than an afterthought.

Colour is never the only signal. Every answer key carries a fill pattern as well as a colour — solid, diagonal stripes, dots, or concentric rings — and the stimulus word repeats its own pattern in ink. You can play the entire game by matching patterns and never discriminate a colour at all. The patterns are always on; there is no setting to find.

On top of that, Settings has a colour-blind friendly palette toggle. It swaps red for pink and green for orange. That swap changes which colours a round is generated from, not merely how they are painted.

Every text and surface pair in the palette is checked against its WCAG contrast floor by a script that recomputes the ratios from the source values.

Not yet. The app is built and running, but it has not been submitted to the App Store.

In the meantime the full source is public at github.com/zakariaf/mindforge under the Apache License 2.0. If you have a Mac with Flutter and Xcode you can clone it and run it on a simulator or your own device today.

iOS is being built first. Android is planned — nothing in the architecture is iOS-specific — but there is no Android build yet, so no release date to promise.

When it does ship it will be free, with no ads and no in-app purchases.

No. The stronger version of that claim is the accurate one: there is no network code in the app at all.

It is not that requests are avoided, or that data is anonymised before sending. There is no HTTP client, no socket, no remote config, and no font or asset fetched at runtime. Nothing can be sent because there is nothing to send it with. The repository has an automated check that fails the build if such a dependency is ever added.

Consequently there is no account, no sign-up, no analytics, no crash reporting and no advertising SDK. Your scores live in a single database file on your device.

One honest footnote: that file sits in the app's Application Support directory, which iOS includes in iCloud Backup if you have backups switched on. That is Apple backing up your own device, not the app sending anything — but it is the one path by which the data can end up somewhere other than your phone, so it is worth stating. It is disclosed in the privacy policy too.

Four: English, German, Persian (فارسی) and Kurdish Sorani (کوردیی ناوەندی). The last two are right-to-left.

It follows your device language when that language is one of the four, and you can override it in Settings. Your choice survives a relaunch.

Right-to-left is not a mirrored stylesheet applied at the end. Every inset, alignment and text direction in the app is written directionally, so the layout is correct by construction — enforced by a build check that fails on a left/right hardcode. The one thing deliberately not mirrored is the hard offset shadow under every raised surface: that is a light source, not a reading direction.

Persian and Kurdish also render Eastern Arabic numerals (۰۱۲۳۴۵۶۷۸۹), which matters more than usual here, because in Schulte Grid the numbers are the game.

A caveat worth stating: the Persian and Kurdish translations have not yet been reviewed by a native speaker.