Inspired by standalone sites like bankstatementconverter.com, a major opportunity in the ChatGPT store is building apps that solve highly specific, painful business problems. An app that automatically finds all K1 tax forms in a user's Gmail is a prime example of a simple tool with massive value for a specific audience.
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Tim McLear used AI coding assistants to build custom apps for niche workflows, like partial document transcription and field research photo logging. He emphasizes that "no one was going to make me this app." The ability for non-specialists to quickly create such hyper-specific internal tools is a key, empowering benefit of AI-assisted development.
Advanced AI like Gemini 3 allows non-developers to rapidly "vibe code" functional, data-driven applications. This creates a new paradigm of building and monetizing fleets of hyper-specific, low-cost micro-SaaS products (e.g., $4.99 per report) without traditional development cycles.
An app bundling various LLMs into one interface is making $300k/month. Replicate this success by targeting a specific professional niche like lawyers or teachers. Stitch together models and workflows to become the default AI assistant for that vertical.
Startups like NextVisit AI, a note-taker for psychiatry, win by focusing on a narrow vertical and achieving near-perfect accuracy. Unlike general-purpose AI where errors are tolerated, high-stakes fields demand flawless execution. This laser focus on one small, profound idea allows them to build an indispensable product before expanding.
Building an AI application is becoming trivial and fast ("under 10 minutes"). The true differentiator and the most difficult part is embedding deep domain knowledge into the prompts. The AI needs to be taught *what* to look for, which requires human expertise in that specific field.
Dominant models like ChatGPT can be beaten by specialized "pro tools." An app for "deepest research" that queries multiple AIs and highlights their disagreements creates a superior, dedicated experience for a high-value task, just as ChatGPT's chat interface outmaneuvered Google search.
Most successful SaaS companies weren't built on new core tech, but by packaging existing tech (like databases or CRMs) into solutions for specific industries. AI is no different. The opportunity lies in unbundling a general tool like ChatGPT and rebundling its capabilities into vertical-specific products.
The surprising success of Dia's custom "Skills" feature revealed a huge user demand for personalized tools. This suggests a key value of AI is enabling non-technical users to build "handmade software" for their specific, just-in-time needs, moving beyond one-size-fits-all applications.
The primary value of AI app builders isn't just for MVPs, but for creating disposable, single-purpose internal tools. For example, automatically generating personalized client summary decks from intake forms, replacing the need for a full-time employee.
Don't start with a broad market. Instead, find a niche group with a strong identity (e.g., collectors, churchgoers) that has a recurring, high-stakes problem needing an urgent solution. AI is particularly effective at solving these 'nerve' problems.