Mental Health App Development Company

Support wellbeing, expand access to care, and deliver safe, user-friendly digital interventions with custom-built mental health apps from 6B. As a trusted Mental Health App Development company, we work with NHS providers, charities, mental health startups, and digital therapeutics innovators to design, develop, and scale apps that support mental wellness across diverse user groups and clinical needs.

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From CBT-based tools and therapy scheduling to symptom tracking, journaling, and AI-powered chat support, we build platforms that are grounded in clinical evidence, driven by user needs, and fully compliant with healthcare standards.

Whether you’re delivering early intervention, crisis support, or long-term care management, 6B provides the strategic, technical, and regulatory expertise to turn your mental health product vision into reality.

Understanding Mental Health App Development

Mental health apps enable individuals to access therapeutic content, manage their wellbeing, track symptoms, and communicate with care providers — often outside of traditional clinical settings. These platforms play a crucial role in addressing the mental health access gap, improving self-management, and supporting blended models of care.

Key features may include:

  • Guided self-help modules (e.g. CBT, ACT, mindfulness)
  • Mood tracking, journaling, and symptom logging
  • Crisis support pathways and escalation triggers
  • AI-powered chatbots and peer support tools
  • Therapist booking and secure messaging
  • Integration with EHRs, NHS App, and NHS Login
  • Clinical safety case development (DCB 0129)
  • Privacy, accessibility, and data security compliance (UK GDPR, ISO 27001)

At 6B, we work with clinicians, designers, and users to build apps that are evidence-informed, inclusive, and safe — without compromising on usability or impact.

Our Mental Health App Development Process

As a leading Mental Health App Development company, we deliver full-lifecycle support — from concept and design through to development, integration, and scale.

We begin with a discovery phase where we align on your product goals, target audience, clinical framework, and regulatory needs. Whether your app focuses on general wellbeing, specific conditions (e.g. anxiety, PTSD, depression), or digital therapeutics pathways, we help define functionality, user journeys, and content strategy.

Our design team creates inclusive, accessible mobile experiences tailored for iOS, Android, and web-based delivery. We prioritise ease of use, safety, and discretion, ensuring interfaces are suitable for people with a range of mental health challenges.

Development is delivered using secure, scalable cloud technologies with embedded compliance to DCB 0129, UK GDPR, and NHS accessibility standards. We support NHS integration, API connectivity, user testing, and clinical validation where required. After launch, we continue to support performance, updates, and strategic iteration.

Benefits of Custom Mental Health App Development

Bespoke mental health apps enable you to deliver more flexible, accessible, and patient-centred care — helping users engage with support on their own terms.

With 6B-developed solutions, you gain:

  • Greater access to care for underserved or remote populations
  • Improved self-management of conditions through daily tracking and therapeutic content
  • Enhanced engagement with real-time feedback, personalisation, and progress tracking
  • Scalable infrastructure to support growing user bases and multi-service delivery
  • Secure communication between users, therapists, and clinical teams
  • Compliance confidence with NHS, privacy, and clinical safety frameworks

Whether you’re a healthcare provider, wellbeing brand, or digital therapeutics company, we help you design an app that delivers measurable impact and long-term value.

Why Choose 6B for Mental Health App Development?

We understand the clinical, emotional, and ethical nuances of developing for mental health. Our team combines digital health experience with a deep commitment to user safety, accessibility, and impact.


6B has worked on mental health and wellbeing platforms for the NHS, VC-backed startups, and voluntary sector organisations — always tailoring our approach to each audience, use case, and care model.


We embed best practices for clinical safety (DCB 0129), data protection (UK GDPR), and cybersecurity (ISO 27001) throughout the build. Our platforms are also fully aligned with NHS digital standards and accessibility requirements (WCAG 2.1).


We work as long-term partners — supporting continuous improvement, feature growth, and regulatory alignment to ensure your app remains safe, effective, and relevant in a rapidly evolving landscape.

Speak To Our Mental Health App Development Experts

Whether you're developing a new digital health product or extending an existing solution with Mental Health App Development, 6B brings the technical expertise, healthcare insight, and experience needed to accelerate delivery.

Sarah Luther

Sarah Luther

Business Development

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Or call Sarah on 0113 350 1290