Best Regular Expressions Apps

71+ iOS apps curated and reviewed

4.3 avg rating
17 free apps
Updated October 2026

Every iPhone needs a few good regular expressions apps. We benchmark 71+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Regular Expressions Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1RegEx ToolRegEx ToolFree1.0★ (1)NoNoSep 2026
2Regular ExpressionsRegular ExpressionsFree—NoNoJun 2026
3RegEx Lab: Regular ExpressionsRegEx Lab: Regular Expressions$0.994.8★ (172)NoNoOct 2026
4Regular Expression TestRegular Expression TestFree—NoNoMay 2026
5Regular Expressions BasicsRegular Expressions BasicsFree—YesNoMay 2026
6Swagbucks: Earn Real RewardsSwagbucks: Earn Real RewardsFree4.4★ (148K)YesNoNov 2026
7RegEx - LearningRegEx - LearningFree5.0★ (25)NoYesOct 2026
8RegExpRegExpFree—NoYesOct 2026

Top Picks for Regular Expressions

RegEx Tool#1

RegEx Tool by Jakub Sosna

Learn Regular Expressions!
1.0(1 ratings)
Free
RegEx Tool screenshot 1
RegEx Tool screenshot 2
RegEx Tool screenshot 3

Learn and master regular expressions with an interactive tutorial and a real-time tester. This app guides users from basic concepts to advanced techniques, making it an accessible tool for skill enhancement.

RegEx Lab: Regular Expressions#3

RegEx Lab: Regular Expressions by sovio

Test regular expressions
Worth Considering
🛠️ Developer Tools
4.8😊(172 ratings)
$0.99
#64in Developer Tools
RegEx Lab: Regular Expressions screenshot 1
RegEx Lab: Regular Expressions screenshot 2
RegEx Lab: Regular Expressions screenshot 3

This app allows users to test and experiment with regular expressions. It offers syntax highlighting, customizable match colors, and a detailed results list. Features include a replace function, dark and light themes, and a helpful cheatsheet for quick reference.

What We Love

  • 👍 Beautifully designed UI
  • 🚀 Simple and easy to use
  • ⚡ Gets regular expression tasks done quickly
  • 💡 Useful offline Regex tool
  • 🛠️ Essential text tool for devs and writers
  • ✅ Excellent UI and workflow
  • 💯 Comprehensive and powerful
  • 💖 Love it
  • ✨ Constantly improving
  • 🚀 Works great
  • 🌟 Latest update making things better
  • 🎯 Gets the job done without annoyance
  • 📚 Great for practicing/learning Regex
  • 🧩 Nice implementation for extracting data
  • 🎨 Color coded grouping is great
  • 💡 Share feature is brilliant
  • 🖥️ Best Regex app on macOS
  • 💡 Clean simplicity and good tutorials
  • ✅ Works well and is free
  • 👨‍💻 Great for developers
  • 💡 Unique, handy, well-made app
  • ✨ Great UI
  • 💡 Live highlighting of group matches is awesome
  • 📚 Integrated documentation/cheatsheet
  • 📱 Fantastic tool to have in hand
  • 🚀 Best regex app out there
  • 💡 Elegant user interface
  • 📝 Simple design with great functions
  • 👍 Must-have for whipping up regex
  • 💡 Responsive developer

Room to Improve

  • 🐛 Files are hidden and not found in Files app
  • 🐛 Export option makes a mess
  • 🐛 Mac version has no effort put into it
  • 🐛 Takes a long time for load screen to go away
  • 🐛 'Select this match' option often doesn't work
  • 🐛 Difficult to figure out replace function
  • 🐛 Cheat sheet not easily accessible
  • 🐛 Terrible light/dark highlighting
  • 🐛 Keyboard does not go back down
  • 🐛 Import functionality is very broken
  • 🐛 Corrected errors remain highlighted in red
  • 🐛 Difficult to apply series of regex search/replace to multiple texts
  • 🐛 No support for named groups
  • 🐛 All English, difficult to use for some

More Regular Expressions apps to explore

FAQ about Regular Expressions

What are the best regular expressions apps for iPhone?
RegEx Tool tops our regular expressions apps ranking as of October 2026, with a 1.0-star average from 1 App Store ratings, and it's free to download.
Yes — 17 of the top regular expressions apps we rank are free to download, including RegEx Tool and Regular Expressions.
RegEx Tool has no ads and has no in-app purchases, according to its App Store listing as of October 2026.
We track 71+ regular expressions apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.

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