RegEx Lab: Regular Expressions

Name: RegEx Lab: Regular Expressions
Price: 0.99 USD
Rating: 4.8 (172 reviews)
Author: sovio

By: sovio

Test regular expressions

Features & Capabilities

RegEx Lab helps you craft and test regular expressions with live highlighting of syntax, matches, and capture groups. You can customize highlight colors, switch between light and dark themes (default Solarized-inspired), and view a results list of all matches and capture groups. The built-in replace feature lets you experiment with substitutions as you refine your pattern.

Also included are a comprehensive cheatsheet for operators, flags, and metacharacters, an extra keyboard shortcut row for common symbols, undo/redo support, Dynamic Type compatibility, and easy export/import of patterns. For questions or suggestions, email regexlab@sovio.co. Made by Nikolay Suvandzhiev.

User Growth & Download Statistics

App Programming Developer Tools Education

By:

sovio

Rating:

4.80

(172)

Version:

1.16.2 Last updated: 2024-12-06

Version code:

870935185

Creation date:

2017-07-26

Compatible devices:

Size:

5.37MB

Price:

0.99

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-12

Compare stats and ranking:

Ranking

# 119,403 ▲ 4

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

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Developed by:

sovio

Apple Apps Store

https://apps.apple.com/us/app/regex-lab-regular-expressions/id1252988123

Website:

https://sovio.co

User Reviews

RegEx Lab excels at live match highlighting, built-in learning aids, and a mobile-friendly workflow, including easy output handling. However, multiple reviews flag cross-platform gaps and reliability issues, especially with the Mac version, backup/export visibility, import bugs, and cheat-sheet accessibility concerns. The UI and color-coding are praised, but some theme/UX aspects remain inconsistent.

Pros

Real-time highlighting of regex matches in text provides instant feedback and makes debugging easier.
Built-in documentation and cheatsheet with examples help learning and applying regex.
Excellent mobile experience: works well on iPad/iPhone and integrates with Shortcuts.
Easy to copy, view, and reuse results/output; clear find-and-replace workflow.
Color-coded grouping and a clean UI make organizing and navigating patterns pleasant.

Cons

Mac version feels neglected; development focus seems iOS-first.
Backup/export can be flaky: iPad Files visibility issues, and HTML-encoded export output; trouble backing up to iCloud.
Import flow and keyboard handling are buggy; corrected errors highlight persist.
Cheatsheet/docs are hard to find or not accessible from all screens.
Theme/UI can be inconsistent or irritating (color choices and highlighting options).

Recent reviews

I was really enjoying this app until I went to backup my Regex files I’ve created in it. The iPad’s Files app cannot find the app or my Regex files. Why make them hidden?! The export option makes a mess of them. If you select Export All you get a file that’s not html but is full of HTML codes and everything is in quotes. If I can’t backup my Regex expressions to iCloud, then the app is not saving me any time. Please make your app visible! AND all of my Regex files I’ve created in your app. I shouldn’t have to buy a Shell to go on an Easter Egg Hunt to find my work. Geesh!! :((