Choosing the Best Mobile Application Security Testing Tool in 2024

As per Statista, mobile apps are estimated to generate over $935 billion in revenue in 2024, which includes: 

• The revenue from in-app purchases from upgrades, purchase of features, and subscriptions within an app 
• Revenue from a one-time purchase from an app 
• Advertising revenue from in-app ads 

This means businesses must prioritize mobile app testing and security posture to safeguard users' personal and financial information from security breaches.

For successful mobile app testing, your team must test the app through numerous operating system versions, network bandwidths, screen resolutions, and devices—to ensure the app performs seamlessly across devices.

However, manual penetration testing is time-consuming. So, it has limited scalability due to the wide range of platforms and devices to test. This is where mobile app testing tools, with automation, speed up the security testing process, enabling the early detection of frauds and errors.

If you’re looking for the best security testing tools for your mobile application to help you secure user data, preserve the app’s integrity, and identify and analyze vulnerabilities in applications used with your mobile platforms during or post-development, you are in the right place! This blog will share the best mobile app security testing tools, their key features, and pros and cons to help you decide the best fit for your business.

Types of mobile app security vulnerabilities

Let’s first understand how cracks might develop in your apps, making your data and users vulnerable to cyber thefts and attacks.

Inadequate security in supply chain apps

Apps collaborating with suppliers and resellers are often coded using third-party software libraries and software development kits (SDKs). These may contain malicious code that infects your app and leaks sensitive information to the fraudster. 

It compromises user privacy and company data, enables unauthorized access to data and denial of service, and may take over the app altogether. 

Weak authentication mechanism 

Weak or misconfigured authentication mechanisms and password policies, insecure credential transmission, and improper session management may provide unauthorized access to hardcoded credentials.

The impact of authentication vulnerabilities includes access to all data and functionalities of the compromised accounts. If the attacker bypasses the authentication of a high-privilege account, such as a system administrator, they could even take control of the application and gain access to internal infrastructure and information.

Even access to a low-privilege account can grant the attacker access to commercially sensitive business data or allow access to additional pages, providing a further attack surface. 

Unprotected Personally Identifiable Information (PII)

Third-party malicious actors can eavesdrop on network communication, access clipboards, or use trojans to access unsecured PII, which includes names, addresses, financial details such as credit card numbers, email addresses, IP addresses, health information, religion, sexuality, etc.

Insufficient validation and data sanitization

Injection attacks, such as SQL, command, and CSS attacks, allow external data to enter the network without sufficient validation, making the app extremely vulnerable to data breaches.

To prevent such app vulnerabilities, it is essential to use secure coding practices, review code, and continuously test throughout the app development lifecycle.

Why is mobile application security testing necessary?

Mobile application security assessment is a proactive approach to identifying security-critical vulnerabilities and weaknesses in mobile apps. As organizations continuously release new apps and update current ones, MAST has become the bedrock of enterprise security.

Advantages of mobile application security testing

• It uncovers common security flaws during the app development stage, such as insecure data storage, weak authentication mechanisms, and insecure communication channels.   
• Allows security teams to adhere to industry standards, guidelines, and regulatory compliances, such as NIST, OWASP, HIPAA, and GDPR, ensuring the app complies with necessary benchmarks.
• Enables developers to embed security naturally in the development cycle and build a strong security culture.
  

Types of mobile application security testing

Static Application Security Testing (SAST)

The SAST process evaluates the app’s source code, bytecode, or binary code without executing the program. The method effectively detects security vulnerabilities like code injection, insecure authentication methods, and other source code vulnerabilities before the app is released to the public—when these errors are cheapest to fix.

In the software development lifecycle (SDLC), static application security testing is integrated into the Continuous Integration/Continuous Development (CI/CD) pipeline, allowing developers to code, test, edit, and test the static code to ensure the software is free of vulnerabilities.

The benefits of SAST testing include: 

• Detection of common vulnerabilities early in the SDLC lifecycle: SAST does not require executable code, which allows you to test in the early SDLC stages for common vulnerabilities described in the Common Weakness Enumeration (CWE) list.
• High false-positive rates: SAST performs real-time determination of the potential vulnerabilities and risks.
• Improves the working of an application: As SAST scans are performed frequently, you can identify various vulnerabilities before they get exploited by monitoring requests.
  
  

Dynamic Application Security Testing (DAST)

DAST is a black box app security testing simulator that simulates external attacks to detect weaknesses and vulnerabilities in the app’s architecture. 

The dynamic application security testing analysis detects conditions indicative of a security vulnerability while in its running stage, which means it comes into play in the SDLC even in the initial development stage. You can observe how the app behaves in the HTTP environment and try to simulate attacks from an attacker’s perspective.

This type of testing focuses on the application's dynamic or run-time characteristics, including encryption, memory, permissions, performance, and back-end code injection. 

The benefits of DAST include: 

• Language and platform-agnostic: As DAST is not dependent on the application's source code and is not specific to a language or platform, you can use the same DAST tool for most of your applications.
• Identifies configuration issues: DAST attacks the application externally, which allows it to detect configuration issues that other application security testing tools may miss.
• Low false positives: As per OWASP, DAST’s false positives rate is much lower than other security testing tools, which helps developers also keep a check on the false noise 
  
  

Application Programming Interface (API) security testing

API security is no longer the sole responsibility of cloud service providers. You must use mobile app security testing tools to perform deep scanning and threat analysis to ensure your app ecosystem remains impenetrable or unexploitable.

Mobile app API security includes: 

• Identifying insecure API endpoints, 
• Rate-limiting or throttling, 
• Weak authentication and authorization mechanisms, 
• Vulnerable data exposure and 
• Improper input validation. 

APIs are the easiest entry points for hackers, and any unpatched vulnerability can lead to data leaks and malware assaults. So, API security testing involves conducting multiple scanning processes to test an application's server side for exploitable flaws and vulnerabilities. 

Penetration testing

Penetration testing for mobile apps to detect security vulnerabilities ingrained in the app’s infrastructure. These attacks are performed both internally and externally to identify potential vulnerabilities.

The mobile pentesting process involves five steps: 

Preparation: Preparation includes defining the scope of security testing, the organization’s goals, and identifying the applicable security controls and sensitive data.

Intelligence gathering: Intelligence gathering analyzes the app's environmental and architectural context to gain a deeper understanding.

Mapping the application: This step involves manually exploring the app or automated scanning to understand the app, its entry points, the data it holds, and its vulnerabilities. The security tester can rank vulnerabilities based on the damage their exploitation can cause and create test cases for test execution. 

Exploitation: To determine whether the vulnerabilities are real and true positive, the security tester tries to penetrate the app by exploiting previously identified vulnerabilities. 

Reporting: In this phase, the security tester reports details regarding the vulnerabilities exploitation process, classifies the type of vulnerabilities, and documents the risk if an attacker would be able to exploit the target and which data the tester was able to gain illegitimate access to.

Identifying the right mobile security testing tool

The market is flooded with several mobile app security testing tools. So how do you decide on the one that is right for you? Here are some points that you must evaluate: 

Features and capabilities

Start with an in-depth evaluation of the tool’s features and compatibility with iOS and Android. Look for essential features and functionalities like SAST, DAST, penetration, and API testing capabilities.

In addition, the tool should support both native and hybrid apps. It should also be able to identify security issues with 

• Data storage, 
• Session handling, 
• Weak authentication,
• Inadequate session management and 
• Communication security.
  
  

Vulnerability scanning 

Vulnerability scanning identifies the commonly known vulnerabilities and loopholes by cross-checking a comprehensive database within software dependencies. These matches are reported to the development team or DevSec. Look for a vulnerability scanning tool that integrates vulnerability scans in a CI pipeline. 

Static and dynamic analysis 

While static analysis helps you identify vulnerabilities in the code during the early stages, dynamic analysis identifies vulnerabilities that occur during runtime. 

A comprehensive mobile app security testing tool should have a dynamic application security testing tool and a static analysis security testing tool, along with vulnerability assessment and compliance testing. 

Code scanning 

Code scanning in the security testing tools analyzes the app’s source code for potential vulnerabilities, coding mistakes, adherence to SQL, cross-site scripting (XSS), and improper input validation. 

Penetration testing 

Penetration testing helps identify common vulnerabilities like weak authentication, insecure API endpoints, and privilege escalation that may not be easily detected through automated testing tools. It incorporates human expertise to breach the app’s defenses and identify areas that malicious attacks may exploit in the app.

While automated testing/ vulnerability scanning might generate false positives, penetration testing provides a more precise understanding of the location of the loopholes. 

Risk and security posture assessment 

Risk assessment can mitigate potential risks associated with insider threats in the event of a cyberattack. 

Posture assessment evaluates the current state of the app’s security to reveal information compromised during an attack, its potential impact on business operations, estimated recovery time, and preventative measures.

Risk and posture assessment complement each other and share the goals of 

• Identifying security vulnerabilities, 
• Proactively preventing attacks and 
• Mitigating potential threats.
  
  

Automation and continuous integration support 

Choose a security testing tool for your mobile app that easily integrates with your CI/CD pipeline and tech stack to ensure that security checks are consistent across every code change and build. 

Automation allows you to catch vulnerabilities early, reducing the risk of introducing new security issues and accelerating the delivery of mobile apps. 

Usability and effectiveness 

The right vulnerability scanner must have an easy-to-use interface and clear user instructions. A tool that lacks this feature will reduce the security team’s efficiency despite its advanced features. 

Performance and scalability

Large enterprises with enterprise-grade apps need a scalable security testing tool that can handle high test loads without a high false-positive rate.

Reporting and analytics 

A good mobile application security testing tool must have robust reporting abilities to generate multiple reports and identify gaps in an application’s security framework. 

Compliance requirements 

The ideal security testing tool must comply with the best industry regulations and practices and generate detailed reports to identify issues for various compliances, such as OWASP, NIST, and HIPAA. It must also flag the severity of the issue and potential consequences and outline action-oriented remediation measures.

Pricing 

The pricing of a mobile app testing tool directly influences your company’s budget and resources. Since pricing depends on factors like features, capabilities, and licensing options, the pricing model must align with the project's specific needs.  

Five best mobile app security testing tools

Based on the above criteria, we have prepared a list of five top mobile app security testing tools with a brief overview, features, pros and cons, and pricing to help you make the right decision. 

1. Appknox 

Appknox is a mobile-first binary code vulnerability assessment and penetration testing tool. With powerful capabilities, it covers 140+ automated SAST, DAST, and API vulnerability test cases for mobile applications. 

What sets Appknox apart from other mobile app security testing tools is that it is a fully automated DAST with testing performed on real devices instead of emulators. With just one click, you can get detailed reports with CVSS scores. 

Recognized by Gartner, Appknox empowers security teams to configure and efficiently run manual pen tests, consolidate vulnerabilities, and scan the mobile app's binary in less than 60 minutes.  

Key features

• Scans of SAST, DAST, API, and penetration testing 
• Enables manual pen test
• Compliant with best standards, such as HIPAA, SOC2, OWASP, NIST, and others
• High accuracy with less than 1% false positives 

Pros 

• Easy-to-navigate and user-friendly dashboard 
• Covers all common and advanced vulnerabilities 

Cons 

• Remediation reports are available in PDF format only. 

Pricing

• Custom pricing 

Platforms supported: Android and iOS 

• Broad scanning capabilities, including third-party services and APIs
• Third-party code firewall 
• Customizable rules and policies to adapt to organization-specific security needs 
• Identifies jailbreaks, rooted devices, debuggers, and reverse engineering

Pros 

• Supports native and cross-platform languages, like Swift, Objective-C, Kotlin, and Java

Cons

• Requires additional configuration settings for complex apps 

Pricing

• Custom pricing 

Platforms supported: Android and iOS 

3. Astra Security

Astra Security provides a comprehensive hacker-style penetration test with automated and manual pentesting. Astra’s offerings include a continuous scanner, vulnerability management, and a personal security assistant bot. The intuitive dashboard empowers DevSec teams to monitor real-time vulnerability tests and operations. 

Key Features

• Hacker-style vulnerability scanning combined with pentest by experts to find and fix issues.
• Upload your Android or iOS app, and Astra’s experts perform a mix of DAST, SAST, and manual scanning.
• Get a birds-eye view of your security posture with the CXO dashboard.

Pros 

• Zero false positives 
• Rescanning for vulnerabilities 

Cons 

• Limited integration options   

Pricing

• Starts at $199 

Platforms supported: Android and iOS 

4. Veracode 

Veracode’s mobile app testing security solution is tailored to incorporate app security into the development process, enabling developers to address security concerns on the go to address your AppSec requirements.

Key Features

• Vulnerability scanning to detect vulnerabilities in the code
• Detection of malicious code and evaluation of network communication security
• Detailed reports and guidance on fixing vulnerabilities

Pros

• Easily integrates into the CI/CD pipeline 
• SAST, DAST, and software composition analysis 
• Manual penetration test available in the software development lifecycle 

Cons

• You would need a professional security team to maintain the SAST and DAST tools. 
• Limited developer enablement capabilities 

Pricing

• Custom pricing 

Platforms supported: Android and iOS 

5. NowSecure 

NowSecure provides automated mobile app security testing for Android and iOS and can test any mobile app language or framework. Its Portfolio Health Dashboard offers a holistic view of your mobile AppSec program and shows actionable security risk analytics. 

Key Features

• NowSecure Command Line Interface (CLI) enables custom integrations and interactions into the development workflows. 
• Custom policy-driven approach based on the risk profile and threat landscape.
• A unified app testing solution that provides automated testing, manual testing, expert manual pentesting, and compliance validation services.

Pros

• Conducted over 600 tests covering analysis, including DAST, interactive testing, and APISec analysis 
• Can continuously test the app during the development process according to Agile software timelines 

Cons

• The iOS support could be improved 
• Integrations (CLI) could be improved 

Pricing

• Custom pricing 

Platforms supported: Android and iOS 

Why choose Appknox for mobile app security testing? 

As our top recommended app security testing tool, Appknox provides numerous advantages over other tools, such as: 

• Advanced vulnerability detection: In addition to standard security tests such as SAST and DAST, Appknox provides advanced features such as Software Bill of Materials (SBOM), store monitoring, and more.
• CVSS reporting: It prioritizes detected vulnerabilities using the Common Vulnerability Scoring System (CVSS), allowing security teams to focus on issues that are deemed critical.
• DevSecOps enablement: Developers can integrate security from day zero into their development pipeline.
• Mobile-first vulnerability assessment: Compared to other tools that offer a mix of web, mobile, and network security services, Appknox is a mobile-first vulnerability assessment tool.
• Quick scanning: Appknox conducts SAST, DAST, and APIT to identify vulnerabilities within 60 minutes.

Choose the mobile app security testing tool that caters to your requirements 

The best approach is to prioritize security needs. For example, do you want to improve the DevSec process or meet various compliance requirements?  

Appknox is a mobile app security testing tool worth considering due to its robust vulnerability scanning capability and near-zero false positives. As a mobile app security testing tool, Appknox takes care of all security needs from code to compliance. 

To learn more about the Appknox platform, request a free trial.