Best Regular Expressions Basics Apps

249+ iOS apps curated and reviewed

4.2 avg rating
17 free apps
Updated July 2026

From beginner-friendly picks to power-user tools, our regular expressions basics list covers 249+ iPhone apps updated through July 2026. Compare ratings, prices, and screenshots in one place.

Compare top Regular Expressions Basics Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Regular Expressions BasicsRegular Expressions BasicsFreeYesNoMay 2026
2RegEx ToolRegEx ToolFree1.0★ (1)NoNoAug 2026
3RegEx - LearningRegEx - LearningFree5.0★ (14)NoYesAug 2026
4Regular Expression TestRegular Expression TestFreeNoNoMay 2026
5RegEx VerifierRegEx VerifierFreeNoNoMay 2026
6RegExpressRegExpressFreeNoYesAug 2026
7RegEx KnifeRegEx KnifeFree4.3★ (25)NoNoMay 2026
8Regex Tester - Live MatchRegex Tester - Live MatchFree5.0★ (1)YesNoAug 2026

Top Picks for Regular Expressions Basics

RegEx Tool#2

RegEx Tool by Jakub Sosna

Learn Regular Expressions!
Strong Contender
🛠️ Developer Tools
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 - Learning#3

RegEx - Learning by Lee Clayberg

Fastest way to learn!
Worth Considering
📚 Education
5.0(14 ratings)
FreeIn-App Purchases
RegEx - Learning screenshot 1
RegEx - Learning screenshot 2
RegEx - Learning screenshot 3
RegEx - Learning screenshot 4
RegEx - Learning screenshot 5

Master regular expressions with interactive lessons and real-world challenges. This app guides you from beginner to expert, offering hands-on exercises and a live tester to solidify your understanding of complex patterns.

More Regular Expressions Basics apps to explore

4
Regular Expression Test
Regular Expression Test
Regular Expression Test
by SHIN INABA
Free
🔧 Utilities
(0)
5
RegEx Verifier
RegEx Verifier
RegEx Verifier
by Alexej Plate
Free
🛠️ Developer Tools
(0)
6
RegExpress
RegExpress
RegExpress
Powerful Regex Testing Tool
Free

This app is a comprehensive tool for building, testing, and debugging regular expressions. It offers real-time matching, syntax highlighting, and supports multiple regex flavors. Learn and practice with tutorials, puzzles, and challenges.

Real-time regex matchingSupport for 5 regex flavorsStep-by-step regex debugger
🛠️ Developer Tools
(0)
free with in-app purchases
7
RegEx Knife
RegEx Knife
RegEx Knife
by Mark Alldritt
Free

This tool simplifies working with regular expressions by allowing users to highlight and edit capture groups, immediately viewing the results. It also facilitates experimentation with regex substitutions, offering a straightforward approach to complex pattern matching.

Highlight capture groupsEdit capture groupsSee immediate results
🔧 Utilities
(25)
paid
8
Regex Tester - Live Match
Regex Tester - Live Match
Regex Tester - Live Match
Live match + code snippets
Free

Instantly test regular expressions with real-time highlighting and see captured groups. Automatically generate code snippets in nine popular programming languages. Includes a comprehensive cheat sheet for quick pattern application.

Real-time regex matching and highlightingCode snippet generation in 9 languagesComprehensive regex cheat sheet
🛠️ Developer Tools
(1)
ad-supported
9
Regex Go
Regex Go
Regex Go
Master Regex with Regex Go!
Free

This app simplifies the creation of complex text patterns using a drag-and-drop interface. It leverages modern Swift frameworks to make regular expressions accessible to users without prior coding experience, enhancing efficiency and the joy of coding.

Drag-and-drop regex constructionUtilizes Swift Regex and RegexBuilderSimplifies complex syntax
🔧 Utilities
(1)
free
10
RegEchse
RegEchse
RegEchse
by Artur Hellmann
Free

Test and refine your regular expressions with an innovative highlighted view that clarifies complex patterns. This tool also offers powerful search and replace functionality for efficient text manipulation.

Highlighted regex visualizationRegex testingSearch and replace functionality
📊 Productivity
(0)
free
11
RegEx Lab: Regular Expressions
RegEx Lab: Regular Expressions
RegEx Lab: Regular Expressions
Test regular expressions
$0.99
$1.99 | 50% OFF

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.

Regex syntax highlightingMatch and capture group highlightingCustomizable highlight colors
🛠️ Developer Tools
(172)
free
12
RegEspresso
RegEspresso
RegEspresso
by Yichen Cao
Free

Test regular expressions with ease. Input your regex pattern and source text to see matches highlighted in real-time. A straightforward tool for developers and anyone working with text patterns.

Real-time regex matchingOn-the-fly highlightingInput regex filter
📊 Productivity
(1)
free
13
RegexWord: Learn Regex
RegexWord: Learn Regex
RegexWord: Learn Regex
Learn Regex with Crosswords
Free
📚 Education
(0)
14
Regular Expressions
Regular Expressions
Regular Expressions
Debug Patterns Offline
Free
📚 Education
(0)
15
Regex Playground
Regex Playground
Regex Playground
Test, Learn & Master in Regex
Free
🛠️ Developer Tools
(0)
16
Reverse Lookup
Reverse Lookup
Reverse Lookup
Phone number lookup pro.
Free

Identify unknown callers and uncover details about any phone number. This free tool helps you check for spam and find information on cell, landline, and toll-free numbers from the US and Canada.

Find information on phone numbersCheck spam likelinessCopy/paste numbers from call log
🔍 Reference
(153K)
ad-supported
17
Regex Match Lab
Regex Match Lab
Regex Match Lab
Test, capture and replace
$1.99
🛠️ Developer Tools
(0)
18
RegEx+
RegEx+
RegEx+
Regex Tester & Flow Visualizer
$1.99

This tool helps developers master regular expressions on macOS and iOS. It offers a comprehensive cheatsheet and cloud synchronization across devices to decode and construct complex text patterns.

Master regular expressionsComprehensive cheatsheetCloud synchronization
🛠️ Developer Tools
(5)
paid
19
RegExp
RegExp
RegExp
Powerful Regex Testing Tool
Free

This tool allows developers to test and explore regular expression patterns across various programming language syntaxes. It offers advanced configuration options and synchronization across devices, making it ideal for learning and building complex patterns.

Multiple regex engine supportAdvanced Swift regex engineSave and organize regex patterns
🛠️ Developer Tools
(0)
free with in-app purchases
20
Netbux
Netbux
Netbux
by Vaishnav Kumar
Free
🔧 Utilities
(0)

FAQ about Regular Expressions Basics

Are there free regular expressions basics apps for iPhone?
Yes — 17 of the top regular expressions basics apps we rank are free to download, including Regular Expressions Basics and RegEx Tool.
Regular Expressions Basics shows ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 249+ regular expressions basics apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.