# Schulte Grid

> Free online Schulte number grids and printable A4 practice sheets, with a companion app for iPhone, iPad, and Mac.

The website is a demo with 3x3, 4x4, 5x5, and 6x6 randomized number tables. Select numbers in ascending order. Timing starts on the correct selection of 1. Pause hides the numbers and excludes paused time. Only the current round is held in page memory; a new round, refresh, or page exit discards it. The website does not save training history, daily progress, or preferences in browser storage or on a server. On opening, this version removes records stored by the earlier web version.

The browser tool is free and requires no account. Print generates 1 to 20 different worksheets on white A4 pages, including in dark mode. PDF export uses the browser's print dialog. Schulte grids are a visual search exercise, not a medical assessment or a guarantee of cognitive improvement.

The companion Apple app offers native daily practice, selectable grids, themes, and printing. It saves the latest 100 training results locally and provides daily goals and progress. Version 1.6.0 adds optional iCloud synchronization of recent results, daily goal, best 5x5 time, and practice-day progress across devices using the same Apple Account. Earlier versions save locally only; check the App Store for the version currently available. Offline changes must reach iCloud before they can be restored on another device. Do not infer app pricing from the free web demo. The App Store listing is the source for current availability and pricing.

## Online practice and product facts

- [English overview](https://schulte-grid.luopeike.com/index.md): Demo features, timing rules, printing, no-history policy, and app differences.
- [Simplified Chinese overview](https://schulte-grid.luopeike.com/zh-Hans/index.md): Localized features and questions.
- [Traditional Chinese overview](https://schulte-grid.luopeike.com/zh-Hant/index.md): Localized features and questions.
- [Japanese overview](https://schulte-grid.luopeike.com/ja/index.md): Localized features and questions.
- [Korean overview](https://schulte-grid.luopeike.com/ko/index.md): Localized features and questions.
- [German overview](https://schulte-grid.luopeike.com/de/index.md): Localized features and questions.
- [French overview](https://schulte-grid.luopeike.com/fr/index.md): Localized features and questions.
- [Spanish overview](https://schulte-grid.luopeike.com/es/index.md): Localized features and questions.

## Optional

- [Online tool](https://schulte-grid.luopeike.com/): Interactive practice and printing.
- [Schulte Grid on the App Store](https://apps.apple.com/app/id6547865783): Companion app listing.
- [Privacy policy](https://schulte-grid.luopeike.com/privacy-policy): App privacy disclosures.
- [Support](https://schulte-grid.luopeike.com/support): Contact and app support.