Best Debug Apps

216+ iOS apps curated and reviewed

4.4 avg rating
20 free apps
Updated April 2026

Out of 216+ debug apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for Debug

Debug Anywhere#1

Debug Anywhere by 浩鑫 庄

Inspect web / DevTools
Editor's Choice
🛠️ 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.

App Debug Assistant#2

App Debug Assistant by Junjie Li

File transfer, network debug
Strong Contender
🛠️ Developer Tools
0.0(0 ratings)
FreeAds
App Debug Assistant screenshot 1
App Debug Assistant screenshot 2
App Debug Assistant screenshot 3
App Debug Assistant screenshot 4
App Debug Assistant screenshot 5
App Debug Assistant screenshot 6

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.

Cellular Tower - Signal Finder#3

Cellular Tower - Signal Finder by Aleksandr Alekseev

Find antenna: 5G, 4G, 3G, LTE
Worth Considering
🗺️ Navigation
4.5😞(4.9K ratings)
FreeAdsIn-App Purchases
Cellular Tower - Signal Finder screenshot 1
Cellular Tower - Signal Finder screenshot 2
Cellular Tower - Signal Finder screenshot 3
Cellular Tower - Signal Finder screenshot 4
Cellular Tower - Signal Finder screenshot 5

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.

What We Love

  • 🚀 Good signal booster
  • 👍 Easy to use
  • 🚀 Helped find nearby cell towers

Room to Improve

  • 🐛 Inaccurate tower data
  • 💰 Paywall for key features
  • 🔍 Difficult to find desired information

More Debug apps to explore

4
DevTools Extension
DevTools Extension
DevTools Extension
DevTools for Safari
Free

A browser extension for Safari that provides web developers with essential tools. It allows inspection of console logs, DOM elements, network requests, resources like localStorage and cookies, and source code.

Console logging and command executionDOM node and computed style inspectionNetwork requests and responses monitoring
🛠️ Developer Tools
(15)
free
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
McAfee: Stay Secure & Private
McAfee: Stay Secure & Private
McAfee: Stay Secure & Private
Mobile Protection & Wifi Scan
Free

This app offers comprehensive protection against online threats, including scam detection for texts and emails, VPN for secure browsing, and identity monitoring. It helps safeguard your personal information and devices from various cyber risks.

Scam Detector for texts and emailsSecure VPN for public Wi-FiIdentity monitoring and alerts
🔧 Utilities
(230K)
freemium
7
Apple Developer
Apple Developer
Apple Developer
by Apple Inc.
Free

Access the latest developer news, features, and videos from Apple. Stay updated on new frameworks and technologies, and catch up on past event content.

Developer news and featuresLatest Apple frameworks and technologiesWWDC videos
🛠️ Developer Tools
(2.1K)
free with in-app purchases
8
Bluetooth Debugger & Inspector
Bluetooth Debugger & Inspector
Bluetooth Debugger & Inspector
Detector & Manager Devices
Free

Discover, connect, and debug nearby Bluetooth devices. Inspect their services, characteristics, and data in real-time. Log and export device information, and manage connections with ease.

Device scan and findCustomized device alias and iconRecord and show device locations
🛠️ Developer Tools
(5)
freemium
9
Proxyman - Capture HTTPS
Proxyman - Capture HTTPS
Proxyman - Capture HTTPS
Capture HTTPS from your iPhone
Free

This app acts as a web debugging proxy, allowing you to capture and inspect HTTP/HTTPS traffic directly from your iPhone or iPad. It decrypts requests and responses, offers advanced debugging tools, and ensures your sensitive data remains on your device.

Capture & Inspect HTTP/HTTPS from iOS devicesDecrypt and view requests/responsesJSON syntax highlighting
🛠️ Developer Tools
(775)
free with in-app purchases
10
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
11
IP Tools - Network Debug Tool
IP Tools - Network Debug Tool
IP Tools - Network Debug Tool
Network Debug Tool & Analyzer
Free
🔍 Reference
(0)
12
AVG Mobile Security
AVG Mobile Security
AVG Mobile Security
Protection & private data
Free

Safeguard your digital life with features like identity protection, a secure photo vault, and Wi-Fi scanning. Get instant alerts for leaked passwords and browse privately with a built-in VPN. Protect your sensitive information from online threats.

Identity Protection for leaked passwordsEncrypted Photo VaultWi-Fi Security Scanner
🔧 Utilities
(76K)
free with in-app purchases
13
Star Debug
Star Debug
Star Debug
by Ihor Lytvynenko
Free

Manage your Starlink devices with this alternative tool. It allows you to decode debug data, initiate basic dish and router operations, view telemetry, and create shareable debug data files. The app also checks your internet connection.

Decode DebugData JSONInitiate dish operations (Reboot, Stow, Unstow)Initiate router operations (Reboot, WiFi setup)
🔧 Utilities
(5)
free
14
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
15
HTTPBot: API & HTTP Client
HTTPBot: API & HTTP Client
HTTPBot: API & HTTP Client
Make Requests, Debug APIs
Free

This app allows users to send HTTP/HTTPS requests and connect to WebSockets, making it easy to debug APIs on the go. It supports various response formats, collaboration features, and authentication methods, streamlining API development and testing.

Send HTTP/HTTPS and WebSocket requestsInspect JSON, HTML, and XML responsesImport/export Postman collections
🛠️ Developer Tools
(1.3K)
free with in-app purchases
16
MQTT Debug & Analyzer Client
MQTT Debug & Analyzer Client
MQTT Debug & Analyzer Client
IoT Monitor & Protocol Tool
Free

This utility helps IoT developers and network engineers debug, monitor, and analyze MQTT traffic. It offers advanced connectivity, full MQTT 5.0 support, and intuitive data visualization tools. Seamlessly integrates with major IoT platforms.

Advanced connectivity (TCP, WebSockets, SSL/TLS)MQTT 5.0 protocol supportSyntax highlighting for JSON, XML, text
🛠️ Developer Tools
(3)
subscription
17
DebugBird
DebugBird
DebugBird
Real time crash tracking
Free
🛠️ Developer Tools
(0)
18
OBD BLE Debug
OBD BLE Debug
OBD BLE Debug
by JEAN SCHURGER
Free
🛠️ Developer Tools
(0)
19
conspy_ | Mobile Site Debugger
conspy_ | Mobile Site Debugger
conspy_ | Mobile Site Debugger
by NoteBuddy, Inc.
Free

Debug websites directly on your iOS device. View source code, log network requests, and inspect console and storage data, mirroring desktop browser debugging tools.

Source code viewRequests loggingConsole logging
🔧 Utilities
(8)
free with in-app purchases
20
QR Debug
QR Debug
QR Debug
Debug all your scannable codes
Free

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.

Scan codes with device cameraView encoded dataSee captured image
🛠️ Developer Tools
(5)
free

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