The client

MindStrength was founded by Jon Beros, a tech entrepreneur, in partnership with Dr Jodie Lowinger, an award-winning clinical psychologist, anxiety and mindset expert, and creator of The Mind Strength Method. Together, they set out to transform Dr Jodie’s clinically developed methodology into a scalable digital platform that could support people experiencing anxiety, overwhelm, worry and stress.

Their vision was to create more than a mental health app. MindStrength needed to become a structured behavioural-change platform, helping users understand what anxiety is pulling them into and guiding them towards practical, values-aligned action.

Project overview

MindStrength engaged Appello to design and develop a mobile app powered by AI, grounded in The Mind Strength Method. The platform was built to support users in the moment between feeling anxious and knowing what to do next, combining AI-guided support, daily check-ins, assessments, Mind Tools, journalling, action plans, progress insights and human support pathways.

At the core of the solution is a custom AI coach supported by a Retrieval-Augmented Generation (RAG) model architecture. Dr Jodie’s book, clinical notes and supporting methodology were structured, chunked, embedded and stored in Pinecone, allowing the AI to retrieve relevant method-based context when responding to users. PostgreSQL manages the platform’s relational data, including user activity, assessments, chats, journalling, action plans and behavioural logs, while Redis is used for session management and caching to support faster, more responsive AI interactions.

Appello also designed the AI chat flow to move beyond generic conversation. The system can draw on user context, previous chat history, daily check-ins, emotional intensity, Journey progress, personal values, completed tools, active action plans and safety signals to guide the user towards the most useful next step. This may include continuing the conversation, recommending a Mind Tool, suggesting a reflection, creating an action plan, surfacing an insight or guiding the user towards human support where required.

Potential security risks, along with the tendency of LLMs to hallucinate and produce unrelated or unreliable responses, were among the biggest challenges. Appello's practice-proven expertise helped ensure reliable behaviour through sophisticated guardrails, fine-tuned chunking and managing context to keep brief and relevant on each request, while the application's overall security remains robust thanks to unit tests, hardened packages, enforced TLSv1.3, database & storage encryption at rest, and hosting within Australian jurisdiction.

The result

Appello’s partnership with MindStrength resulted in the development of a sophisticated AI-enabled mental health platform that is method-led, system-driven and designed for real-world behavioural change.

The mobile iOS/Android and web product combines clinical psychology with modern AI architecture, creating a personalised support experience that helps users move from anxiety and overwhelm into intentional action. Rather than positioning AI as a replacement for therapy, MindStrength uses AI as an intelligent guide, helping users access the right support, tool, reflection, action or human pathway at the right moment.

The platform demonstrates Appello’s ability to design and build advanced AI products in sensitive, high-trust categories, combining mobile app development, product strategy, UX/UI design, data architecture, RAG implementation, behavioural analytics and scalable software engineering into one connected product experience.