Application Audit & Review Services
Is your application performing at its full potential? Hidden vulnerabilities, scalability bottlenecks, and compliance gaps can silently erode your business, costing you time, money, and customer trust. Hashe Computer Solutions has delivered expert application audit and review services since 1998, helping organisations across the USA, UK, and Australia transform underperforming applications into secure, scalable, and compliant systems.
Our senior developers and certified application architects conduct comprehensive audits across all critical dimensions: architecture, security, source code quality, performance, UX/UI, and compliance. Every audit concludes with a detailed report, severity-rated findings, and an actionable improvement roadmap, not just a list of problems, but a clear path forward.
Request Your Free Application Audit ConsultationWhat Is an Application Audit & Review?
An application audit and review is a comprehensive evaluation of your software to identify security risks, performance issues, scalability limitations, and code quality gaps.
At Hashe, our application audit services go beyond basic code reviews. We deliver an independent, third-party assessment that uncovers hidden issues your internal teams may miss due to familiarity or time constraints. We focus on answering the five critical questions every business owner and CTO cares about:
- Security: Is your application protected against modern threats like OWASP Top 10 vulnerabilities?
- Scalability: Can your system handle growth in users, traffic, and data?
- Maintainability: Is your codebase clean, structured, and easy for new developers to work on?
- Compliance: Does your application meet standards like GDPR, HIPAA, or PCI DSS?
- Performance: Where are the bottlenecks impacting speed, user experience, and infrastructure costs?
Instead of a generic checklist, you receive a detailed, actionable audit report with:
- Prioritized issues based on business impact
- Expert recommendations
- A clear remediation roadmap that your team can execute immediately
Why External Audits Outperform Internal Reviews
Even highly skilled internal teams develop blind spots over time. Our independent auditors bring fresh perspectives, cross-industry experience, and proven methodologies.
As a result, Hashe typically identifies 30–60% more critical issues compared to internal reviews, helping you reduce risk, improve performance, and make smarter technical decisions faster.

Application Audit Services We Offer
We provide six specialised audit disciplines, each targeting a distinct layer of your application. Most clients benefit from a combination of two or more, which we tailor into a unified engagement based on your priorities and risk profile.
Your application’s architecture is its foundation. A flawed architecture creates compounding problems that become exponentially more expensive to fix as your application scales. Our architecture audit evaluates:
- System design patterns and their alignment with your scalability requirements
- Data flow, API design, and inter-service communication structures
- Technology stack suitability: Are your chosen frameworks and libraries still appropriate for your current scale and roadmap?
- Microservices vs. monolith trade-offs and migration readiness
- Technical debt inventory, legacy components, and shortcuts that now constrain growth
- Fault tolerance, redundancy, and disaster recovery architecture
Deliverable: An architecture assessment report with a scalability risk matrix, technology stack evaluation, and a phased modernisation roadmap.
Poor code quality is the number-one cause of project delays, security breaches, and runaway maintenance costs. Our certified developers conduct both automated static analysis and manual expert review to assess:
- Code readability, modularity, and adherence to language-specific best practices (SOLID, DRY, KISS principles)
- Cyclomatic complexity, identification of overly complex functions that are fragile and untestable
- Code duplication and redundancy that inflates the maintenance burden
- Dependency management, outdated or vulnerable third-party libraries, and open-source components
- Test coverage analysis, unit, integration, and end-to-end test gaps
- Documentation quality, inline comments, API documentation, and onboarding materials
- CI/CD pipeline and version control hygiene
Deliverable: A code quality report with issues categorised as Critical / High / Medium / Low, annotated code examples, and refactoring recommendations ranked by effort and business impact.
Security vulnerabilities are not theoretical risks; they are near-certainties in applications that have not been independently audited. Our security audit follows the most current industry frameworks:
- OWASP Top 10 2021 is the definitive standard for web application security risks
- SANS/CWE Top 25 Most Dangerous Software Weaknesses
- SAST (Static Application Security Testing), whitebox analysis of source code
- DAST (Dynamic Application Security Testing), blackbox testing against the live application
- Penetration testing based on real-world attack scenarios
- Sensitive data handling: encryption at rest and in transit, key management
- Authentication and authorisation controls: session management, access control, privilege escalation risks
- Third-party API and integration security assessment
Compliance reports are provided against: HIPAA, PCI DSS v4.0, OWASP Top 10 2021, GDPR, and Web Application Security Consortium (WASC) Threat Classification.
Deliverable: A security audit report with a CVE-referenced vulnerability list, exploitability ratings, proof-of-concept findings, and a prioritised remediation plan.
A slow application loses users and revenue. Our performance audit identifies every bottleneck between your user’s request and a satisfying response:
- Response time profiling under normal and peak load conditions
- Database query optimisation, slow queries, missing indexes, N+1 query patterns
- Memory leak detection and resource utilisation analysis
- Caching strategy assessment: Are you caching the right things at the right layer?
- Front-end performance: render-blocking resources, image optimisation, bundle sizes
- Infrastructure scalability: Can your current setup handle 2x, 5x, or 10x the current load?
- CDN configuration and static asset delivery
Deliverable: A performance benchmark report with before/after projections, optimisation effort estimates, and an infrastructure scaling plan.
Your application may be technically sound but commercially underperforming because users find it confusing or frustrating. Our UX/UI review covers:
- Interface logic and navigation flow assessment
- Accessibility compliance, WCAG 2.1 AA standards
- Cross-browser and cross-device compatibility testing
- Responsiveness on mobile, tablet, and desktop viewports
- CSS and JavaScript performance impact on perceived load time
- User feedback analysis and heatmap interpretation (if data available)
- Conversion funnel friction point identification
Deliverable: A UX audit report with annotated UI screenshots, accessibility compliance checklist, and prioritised design improvement recommendations.
Regulatory non-compliance exposes your organisation to substantial financial penalties and reputational damage. Our compliance audit verifies your application against the specific standards relevant to your industry:
| Standard | Applicable To |
| HIPAA | Healthcare applications handling patient data (PHI) |
| PCI DSS v4.0 | Applications processing, storing, or transmitting cardholder data |
| OWASP Top 10 2021 | All web and mobile applications |
| GDPR | Applications serving EU users or handling EU personal data |
| WASC Threat Class. | Web application threat and vulnerability classification |
| ISO 27001 Controls | Enterprise information security management alignment |
Deliverable: A compliance gap analysis report with a control-by-control assessment, non-conformity severity ratings, and a remediation timeline.
When Should Your Business Get an Application Audit?
Many organisations wait for a crisis before commissioning an audit. The most effective and cost-efficient approach is proactive. An application audit is particularly valuable at these business trigger points:
Business Scenario
Inheriting a codebase from another team or vendor Planning a major feature release or platform migration Experiencing performance degradation or frequent downtime Preparing for M&A, due diligence on a target's technology After a security breach or data leak incident Scaling operations, anticipating rapid user or data growth Preparing for regulatory audit or certification (HIPAA, PCI)
Why an Audit Matters
Understand what you own before it becomes your liability Prevent new features from amplifying existing weaknesses Diagnose root causes before they become existential risks Quantify technical risk and hidden liability in the asset Identify all entry points and prevent recurrence Ensure architecture and infrastructure can absorb growth Identify and close compliance gaps before the official audit
Our Application Audit Process
Our audit methodology is structured, transparent, and collaborative. We work with your team, not around them. Every engagement follows five defined phases, each with clear deliverables and milestones.
Step 01
We meet with your key stakeholders to understand your business goals, technical environment, and audit priorities. We agree on scope, access requirements, and success criteria. No hidden scope creep, everything is defined upfront.
Step 02
Your team provides secure access to source code, architecture documentation, infrastructure details, and existing reports. We treat all materials with strict confidentiality under NDA.
Step 03
Our senior architects and security specialists conduct the agreed audit disciplines using a combination of automated tools (SAST, DAST, performance profilers) and expert manual review. This is the most intensive phase, typically 1–4 weeks, depending on application complexity.
Step 04
All findings are compiled, verified, and categorised by severity (Critical / High / Medium / Low). Each finding includes: a clear description, evidence, business impact, and specific remediation guidance. No ambiguous findings without clear next steps.
Step 05
We present findings in a structured walkthrough session with your technical and business leadership. We answer questions, clarify priorities, and discuss the implementation approach. Post-delivery support is available to assist with remediation planning or to re-audit fixed issues.
Typical Audit Timelines
The timeline is agreed upon during scoping and
confirmed in writing before work begins.
Small
Applications
1–2 weeks
(under 50K lines of code)
Medium
Applications
2–4 weeks
Enterprise
Complex Platforms
4–10 weeks
What Is Included in Your Application Audit Report
Unlike many audit providers who deliver generic checklists, Hashe's audit report is a precision document, specific to your application, your technology stack, and your business context.

Every report contains:
Executive Summary: a non-technical overview of findings, risk exposure, and priority actions for business leadership
Technology Stack Evaluation: currency assessment of frameworks, libraries, and dependencies with upgrade recommendations
Detailed Findings Register: every identified issue with: severity rating, affected component, description, evidence/screenshot, business risk, and recommended fix
Compliance Gap Analysis: control-by-control assessment against applicable standards
Security Vulnerability Report: CVE references where applicable, exploitability assessment, and attack scenario descriptions
Remediation Roadmap: prioritised action plan with effort estimates and implementation sequencing
Architecture Assessment: diagram annotations and technical commentary on structural risks and scalability constraints
Quick Win Highlights: issues that can be fixed within 1–2 sprints for immediate risk reduction
Security Vulnerability Report: CVE references where applicable, exploitability assessment, and attack scenario descriptions
Re-Audit Scope Recommendations: optional follow-on audit to verify remediation effectiveness
Reports are delivered in both a detailed technical format (for your development team) and an executive summary format (for stakeholders and board-level reporting).
Benefits of Our Application Audit Services
An application audit from Hashe is not an expense; it is a risk management investment with measurable returns. Organisations that audit proactively consistently outperform those that wait for problems to surface.
Technical debt compounds. A vulnerability or architectural flaw that costs $5,000 to fix today may cost $50,000 to fix after it has propagated through 18 months of feature development. Our audit identifies debt early, when it is cheapest to address.
A single security incident can erase years of brand equity. Our security audit addresses vulnerabilities before they are exploited, protecting not just your data, but your customers’ confidence in your business.
Poor code quality does not just create bugs; it slows every future development sprint. Developers working in well-audited, clean codebases move 20–40% faster than those navigating tangled legacy code. Our audit gives your team the clarity to build faster.
HIPAA violations carry fines of up to $1.9 million per category per year. PCI DSS non-compliance can result in processor fines and loss of card acceptance rights. Our compliance audit closes gaps before regulators find them.
An independent third-party audit report demonstrates technical due diligence to investors, enterprise clients, and board members. It is increasingly a prerequisite for enterprise contracts and Series B+ funding rounds.
You cannot safely scale an application with unknown architectural weaknesses. Our performance and architecture audits give you the intelligence needed to scale with confidence, not guesswork.
Ready to Reduce Risk and Optimise Your Application?
Our senior architects are available for a no-obligation consultation. Tell us about your application, and we will propose the right audit scope for your situation.
Request Your Free Application Audit Consultation:
Contact-UsIndustries We Serve
Hashe has delivered application audits across diverse sectors since 1998. Our auditors bring domain knowledge relevant to your industry's specific compliance requirements, threat landscape, and technical conventions.
Healthcare & MedTech: HIPAA compliance, PHI data protection, HL7/FHIR integration security
Financial Services & Fintech: PCI DSS, SOX IT controls, payment gateway security, fraud detection system integrity
E-Commerce & Retail: payment security, high-traffic performance audits, third-party integration risk
SaaS Platforms: multi-tenancy security, API security, scalability architecture, subscription data handling
Logistics & Supply Chain: real-time tracking system performance, third-party API reliability, data governance
Education Technology: student data privacy (FERPA/COPPA), accessibility compliance (WCAG 2.1), platform scalability
Government & Public Sector: security clearance-level audits, compliance with government IT standards
Startups & Scale-ups: pre-launch audit, investor due diligence preparation, post-MVP technical debt assessment
Open Source Projects We've Deliver
Real client work, not estimates or prototypes. Three examples
from our published case study library.
What Our Clients are Saying
Why Choose Hashe for
Your Application Audit?
The application audit market is crowded.Here is why organisations across three continents have trusted Hashe since 1998:
Founded in 1998, Hashe has spent over 25 years building, maintaining, and auditing complex software applications across industries. Our auditors are not theorists; they are senior developers and architects who write production code daily. This means every recommendation in our audit report is grounded in practical implementation experience, not textbook advice.
Your audit is never assigned to a junior analyst. Every Hashe application audit is conducted by senior developers and application architects with a minimum of 10 years of hands-on development experience. We do not use our audits as training assignments.
Our security consultants are qualified to assess against HIPAA, OWASP Top 10 2021, PCI DSS v4.0, GDPR, and WASC standards. We hold relevant industry certifications and maintain active knowledge of emerging threat vectors and updated compliance frameworks.
We define scope, timeline, and deliverables in writing before work begins. Our reports are precise and actionable, not padded with generic best-practice boilerplate. Every finding is specific to your application with clear evidence.
With regional offices in Boston, Chicago, Indianapolis, San Diego, Washington DC, the UK, and Australia, Hashe offers the accountability of a local partner with the capacity and expertise of a global firm. We work across time zones without compromising communication quality.
Hashe is listed on Clutch, GoodFirms, and The Manifest as a top-rated IT services and software development firm, with independently verified client reviews across multiple service categories, including consulting and application development.
Unlike audit-only firms, Hashe can optionally assist with implementing the recommendations we identify. Our full-service development capabilities mean you have a single trusted partner for both audit and remediation, eliminating knowledge transfer costs.

Trusted by Global Review Platforms
Frequently Asked Questions
These are the questions our clients ask most frequently before commissioning an application audit. If you have a question not covered here, contact our team directly.
A Hashe application audit includes a comprehensive review across any combination of: architecture, source code quality, security vulnerabilities, performance and scalability, UX/UI usability, and compliance standards. The engagement scope is agreed upon with you during an initial discovery session. Every audit concludes with a detailed findings report, severity-rated issues, and a prioritised remediation roadmap.
Timeline depends on application complexity and audit scope. A focused security audit on a small application typically takes 1-2 weeks. A comprehensive multi-disciplinary audit of a medium-scale platform takes 2-4 weeks. Enterprise-scale or complex architecture audits may take 4-10 weeks. We agree and confirm the timeline in writing during scoping.
Cost is determined by scope (number of audit disciplines), application size and complexity, and the level of detail required. We provide a custom quote after an initial no-obligation consultation where we understand your application and priorities. Contact us to discuss your requirements and receive a proposal.
A code review is a focused evaluation of source code quality, typically addressing readability, maintainability, and basic bug identification. A full application audit is broader and deeper, covering architecture, security, performance, compliance, and UX in addition to code quality. The right choice depends on your specific concerns and risk profile.
Yes. Third-party code audits are one of the most common use cases for our services. If you have received a software deliverable from a vendor or outsourcing partner and want an independent quality and security validation before acceptance, we provide exactly this service. Our audit gives you an objective assessment free of vendor bias.
We audit against: HIPAA (healthcare), PCI DSS v4.0 (payment card data), OWASP Top 10 2021 (web application security), GDPR (EU data protection), WASC Threat Classification (web application threats), and ISO 27001 information security controls. If you require an audit against a standard not listed here, contact us to discuss capability.
Absolutely. All client engagements are covered by a Non-Disclosure Agreement (NDA) before any code access is granted. Our team operates under strict confidentiality protocols, and your source code, architecture documentation, and findings report are never shared with any third party. Confidentiality is a non-negotiable foundation of every Hashe engagement.
Yes. While the audit is an independent service, Hashe offers optional post-audit development and remediation support. Our full-service software development capabilities mean you can engage us to implement the recommended fixes, eliminating knowledge transfer overhead and ensuring remediation aligns exactly with audit findings.
Get Your Application Audit Started
Your application carries risks you may not yet be aware of. Every month, those risks remain unaddressed, they grow, and so does the cost of resolving them. The organisations that consistently deliver reliable, secure, and scalable software are those that audit proactively.
Request Your Free Application Audit Consultation
No obligation. No sales pressure. Just an honest conversation about your application’s health with a Hashe senior architect. Request Your Free Application Audit Consultation:
Get Your Free ConsultationGet in Touch With Our Experts
Have a project in mind or need clarity on the right service for your business? Fill out the form below and our team will review your requirements and get back to you with tailored guidance and next steps. Simple details today can lead to smarter decisions tomorrow.















































