About this app
Available on macOS, iOS and iPadOS A powerful and flexible Regular Expression (Regex) testing tool designed for developers. Test and explore regex patterns across multiple flavors: - Swift (fully configurable) - Objective-C - ECMAScript (JavaScript) - Go (macOS only) - Go (POSIX) (macOS only) Most features are available for free, so you can try the app without any commitment. A one-time purchase unlocks advanced configuration options for power users. Key Features: - Support for multiple regex engines and syntax variations - Advanced Swift regex engine with compatibility options (e.g., Python, Rust-style behavior) - Save and organize your own regex patterns like a personal regex notebook - iCloud sync to keep your regex library backed up and accessible across devices Whether you’re learning regex, testing expressions, or building complex patterns, this app is designed to make your workflow faster and more reliable.
Latest release
What’s New
- RegExp might show incorrect matches, when more than one match found with regular expression - RegExp does not render groups correctly
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 19, 2026 · 6:02 AM Free
Screenshots
