Best Regular Expressions Apps

73+ iOS apps curated and reviewed

4.2 avg rating
18 free apps
Updated October 2026

Every iPhone needs a few good regular expressions apps. We benchmark 73+ 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 Lab: Regular ExpressionsRegEx Lab: Regular Expressions$0.994.8β˜… (172)NoNoSep 2026
2Regular ExpressionsRegular ExpressionsFreeβ€”NoNoJun 2026
3RegEx ToolRegEx ToolFree1.0β˜… (1)NoNoSep 2026
4Regular Expressions BasicsRegular Expressions BasicsFreeβ€”YesNoMay 2026
5Regular Expression TestRegular Expression TestFreeβ€”NoNoMay 2026
6RegEspressoRegEspressoFree4.0β˜… (1)NoNoMay 2026
7RegExpressRegExpressFreeβ€”NoYesAug 2026
8RegEchseRegEchseFreeβ€”NoNoJul 2026

Top Picks for Regular Expressions

RegEx Lab: Regular Expressions#1
4.8😊(172 ratings)
$0.99
#72in 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

  • πŸ‘ Beautifully designed UI
  • πŸš€ Simple and easy to use
  • ⚑ Gets regular expression tasks done quickly
  • πŸ’‘ Useful offline Regex tool
  • πŸ› οΈ Essential text tool for devs and writers
  • βœ… Excellent UI and workflow
  • πŸ’― Comprehensive and powerful
  • πŸ’– Love it
  • ✨ Constantly improving
  • πŸš€ Works great
  • 🌟 Latest update making things better
  • 🎯 Gets the job done without annoyance
  • πŸ“š Great for practicing/learning Regex
  • 🧩 Nice implementation for extracting data
  • 🎨 Color coded grouping is great
  • πŸ’‘ Share feature is brilliant
  • πŸ–₯️ Best Regex app on macOS
  • πŸ’‘ Clean simplicity and good tutorials
  • βœ… Works well and is free
  • πŸ‘¨β€πŸ’» Great for developers
  • πŸ’‘ Unique, handy, well-made app
  • ✨ Great UI
  • πŸ’‘ Live highlighting of group matches is awesome
  • πŸ“š Integrated documentation/cheatsheet
  • πŸ“± Fantastic tool to have in hand
  • πŸš€ Best regex app out there
  • πŸ’‘ Elegant user interface
  • πŸ“ Simple design with great functions
  • πŸ‘ Must-have for whipping up regex
  • πŸ’‘ Responsive developer

Room to Improve

  • πŸ› Files are hidden and not found in Files app
  • πŸ› Export option makes a mess
  • πŸ› Mac version has no effort put into it
  • πŸ› Takes a long time for load screen to go away
  • πŸ› 'Select this match' option often doesn't work
  • πŸ› Difficult to figure out replace function
  • πŸ› Cheat sheet not easily accessible
  • πŸ› Terrible light/dark highlighting
  • πŸ› Keyboard does not go back down
  • πŸ› Import functionality is very broken
  • πŸ› Corrected errors remain highlighted in red
  • πŸ› Difficult to apply series of regex search/replace to multiple texts
  • πŸ› No support for named groups
  • πŸ› 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 Lab: Regular Expressions tops our regular expressions apps ranking as of October 2026, with a 4.8-star average from 172 App Store ratings, and it's priced at $0.99.
Yes β€” 18 of the top regular expressions apps we rank are free to download, including Regular Expressions and RegEx Tool.
RegEx Lab: Regular Expressions has no ads and has no in-app purchases, according to its App Store listing as of October 2026.
We track 73+ 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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