Best Debugging Apps

205+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated July 2026

Looking for free debugging apps? 20 of our 205+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Debugging Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Debugging: Inside the MachineDebugging: Inside the MachineFree5.0★ (4)NoNoJul 2026
2QR DebugQR DebugFree5.0★ (5)NoNoJun 2026
3Debug AnywhereDebug AnywhereFree4.6★ (56)NoYesJul 2026
4DebugBirdDebugBirdFreeNoNoMay 2026
5WebDebug - Web debugging toolWebDebug - Web debugging toolFree4.5★ (15)NoYesJun 2026
6Battery Genie DebugBattery Genie DebugFreeNoNoMay 2026
7Bluetooth Tool - DebugBluetooth Tool - DebugFreeNoNoJul 2026
8c,c++ debugging programsc,c++ debugging programsFreeNoYesMay 2026

Top Picks for Debugging

QR Debug#2

QR Debug by Managed Custom Solutions, Inc.

Debug all your scannable codes
Strong Contender
🛠️ Developer Tools
5.0(5 ratings)
Free
QR Debug screenshot 1
QR Debug screenshot 2
QR Debug screenshot 3
QR Debug screenshot 4
QR Debug screenshot 5

This app allows you to quickly view the data encoded in various scannable codes without being redirected. It captures and displays the scanned image along with the encoded data, offering options to copy or share both.

Debug Anywhere#3

Debug Anywhere by 浩鑫 庄

Inspect web / DevTools
Worth Considering
🛠️ Developer Tools
4.6(56 ratings)
FreeIn-App Purchases
Debug Anywhere screenshot 1
Debug Anywhere screenshot 2
Debug Anywhere screenshot 3
Debug Anywhere screenshot 4
Debug Anywhere screenshot 5
Debug Anywhere screenshot 6

This app provides a comprehensive suite of tools for web developers to inspect and debug web pages within a WebView environment. It offers features like source code inspection, network diagnostics, and JavaScript injection to streamline the development process.

More Debugging apps to explore

4
DebugBird
DebugBird
DebugBird
Real time crash tracking
Free
🛠️ Developer Tools
(0)
5
WebDebug - Web debugging tool
WebDebug - Web debugging tool
WebDebug - Web debugging tool
Web Inspector & Static Server
Free

Debug web pages directly on your mobile device. Inspect console logs, network requests, and page elements. Edit code with auto-suggestions and syntax correction, and even run a local static server for testing.

Debug via URL or QR codeView console logs and network requestsEdit HTML, CSS, and JavaScript
🛠️ Developer Tools
(15)
free with in-app purchases
6
Battery Genie Debug
Battery Genie Debug
Battery Genie Debug
Battery
Free
🔧 Utilities
(0)
7
Bluetooth Tool - Debug
Bluetooth Tool - Debug
Bluetooth Tool - Debug
Management Tool & Debug
Free
🛠️ Developer Tools
(0)
8
c,c++ debugging programs
c,c++ debugging programs
c,c++ debugging programs
by RAVINDHIRAN SUMITHRA
Free
📚 Education
(0)
9
App Debug Assistant
App Debug Assistant
App Debug Assistant
File transfer, network debug
Free

A comprehensive toolkit for developers and testers to streamline debugging. It offers device information, sensor data, Bluetooth debugging, file transfer, and QR code tools for efficient workflow and bug reporting.

Device information viewerSensor data readingsBluetooth BLE scanning and connection
🛠️ Developer Tools
(0)
ad-supported
10
TestFlight
TestFlight
TestFlight
Beta testing made simple
Free

Easily test pre-release versions of apps and App Clips. Provide feedback to developers before public launch. Receive invites via email or public link.

Test beta app versionsTest App ClipsSubmit feedback
🛠️ Developer Tools
(787K)
free
11
Cellular Tower - Signal Finder
Cellular Tower - Signal Finder
Cellular Tower - Signal Finder
Find antenna: 5G, 4G, 3G, LTE
Free

Optimize your mobile network with tools to find the strongest Wi-Fi and cellular signals. Locate nearby cell towers, enhance connection stability, and secure your browsing with a built-in VPN. Ideal for improving signal quality and privacy.

Wi-Fi and Mobile Signal OptimizationCell Tower LocatorVPN for Secure Browsing
🗺️ Navigation
(4.9K)
free with in-app purchases
12
Busy Bluetooth
Busy Bluetooth
Busy Bluetooth
Efficient Debugging BLE
Free

This tool helps developers and engineers efficiently debug Bluetooth Low Energy devices. It allows real-time scanning, detailed inspection of device data, and recording of all interactions for repeatable debugging. Export logs in various formats for comprehensive analysis.

Real-time BLE device scanningFilter devices by various parametersInspect device details and advertisement data
🛠️ Developer Tools
(2)
free with in-app purchases
13
Stream - Network Debug Tool
Stream - Network Debug Tool
Stream - Network Debug Tool
HTTPS Sniff / Request Replay
Free

This tool allows developers to inspect HTTP and HTTPS network traffic on iOS devices. It enables capturing requests, replaying them, and managing host configurations for testing different environments. Essential for debugging network issues and understanding application behavior.

Sniff HTTP & HTTPS requestsCapture and preview request/response bodiesCompose and replay HTTP requests
🛠️ Developer Tools
(129)
free with in-app purchases
14
Debugging Techniques
Debugging Techniques
Debugging Techniques
Solve Bugs Offline
Free
📚 Education
(0)
15
LogCat Analyzer: Debug Toolkit
LogCat Analyzer: Debug Toolkit
LogCat Analyzer: Debug Toolkit
Advanced Debugging Analysis
Free
🛠️ Developer Tools
(0)
16
Debugging Assistant
Debugging Assistant
Debugging Assistant
by Anhui Ronds Science & Technology Incorporated Company
Free
🔧 Utilities
(0)
17
Crash Buddy - Debug crash logs
Crash Buddy - Debug crash logs
Crash Buddy - Debug crash logs
Learn about app crashes
Free
🛠️ Developer Tools
(0)
18
Pythonica: Code and Debug
Pythonica: Code and Debug
Pythonica: Code and Debug
Script editor with git client
Free

Develop and debug Python web applications directly on your iOS device. This app provides a full Python environment with PIP support, a script editor with advanced features, and a built-in Git client. It also allows you to run your applications as standalone web apps.

Full Python environment with PIPIntegrated Git clientMulti-tabbed script editor
🛠️ Developer Tools
(2)
free with in-app purchases
19
Reqable
Reqable
Reqable
Advanced API Debugging Proxy
Free

This tool acts as an advanced API debugging proxy, allowing you to inspect and test HTTP/HTTPS traffic independently or collaboratively with a desktop app. It supports various protocols and offers REST API management features for efficient development.

Standalone traffic inspectionCollaborative mode with desktop appHTTP/HTTPS traffic analysis
🔧 Utilities
(6)
free
20
Audio Looper - Audio Repeat
Audio Looper - Audio Repeat
Audio Looper - Audio Repeat
Audio Repeat Playback Player
Free

This app allows users to repeat audio playback for language study and music practice. It supports various audio formats, offers playback speed adjustment, and background playback. Users can manage audio files through cloud downloads, file browsing, and a web server.

Cloud audio downloadMP3/MP4 playbackAdjustable playback speed
📊 Productivity
(52)
ad-supported

FAQ about Debugging

What are the best debugging apps for iPhone?
Debugging: Inside the Machine tops our debugging apps ranking as of July 2026, with a 5.0-star average from 4 App Store ratings, and it's free to download.
Yes — 20 of the top debugging apps we rank are free to download, including Debugging: Inside the Machine and QR Debug.
Debugging: Inside the Machine has no ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 205+ debugging apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
Debugging: Inside the Machine is a free arcade platformer designed to help students practice debugging skills for AP Computer Science Principles and AP Computer Science A exams. It features in-game challenges that simulate real exam questions.
The app covers CSP topics like Selection, Iteration, Functions & Lists, and CSA topics including Variables, Strings, Iteration, Loops, Arrays, and Recursion. Each difficulty level focuses on specific question banks related to these topics.

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