RegExpress 4+

RegExpress v5 delivers Liquid Glass polish, an AI-powered Regex Playground with achievements, and pro-ready productivity boosts like multi-window and smart imports.

RegExpress is the all-in-one regex workbench built for iPhone and iPad. Explore the new Liquid Glass design, test patterns with instant feedback, and move seamlessly between learning, building, and shipping production-ready expressions.

## Build and Test with Confidence

- Live match highlighting, capture group inspection, and replacement previews keep results clear.
- Support for multiple regex flavors and flags lets you mirror production engines before you deploy.
- Performance metrics and the Regex Execution Manager reveal expensive steps so you can tune every pattern.

## Smart Regex Playground

- Guided achievements and a distraction-free layout help you explore advanced techniques faster.
- AI-powered Pattern Assistant suggests fixes, edge cases, and naming ideas while you type.
- Saved Pattern toolbar puts common actions within reach, including one-tap Show Matches.

## Organize Your Library

- Build a personal, searchable pattern library with folders, favorites, and version history.
- Auto-save, duplicate detection, and analytics keep your collection tidy and accurate.
- Import Suite validates incoming patterns, while export makes sharing with teammates effortless.

## Learn by Doing

- Interactive tutorials, refreshed learning paths, and updated games turn regex practice into quick wins.
- Spotlighted overlays and corrected highlights show exactly where each lesson applies.

## Pro Power on Every Device

- Multi-window and full keyboard shortcut support supercharge iPad workflows.
- Liquid Glass buttons and modals deliver a polished iOS 26 experience with improved readability.
- Enhanced purchase flows make it easy to unlock pro features when you need more power.

## Accessible for Everyone

- Inclusive design covers increased contrast, reduced motion, and VoiceOver testing.
- Updated freemium model expands what you can do for free while keeping advanced tools for pros.

Stay ahead of every regex challenge—prototype, debug, and ship confidently with RegExpress.