# Customappdevelopment > What custom app development is, when it makes sense, the five stages from discovery to maintenance, and how to choose an approach, a team and a scope before you commit. A neutral field guide for founders, small business owners and nonprofit staff weighing a custom app: build versus buy, the process stage by stage, team models, cost and timeline drivers, and technical debt after the MVP. Every page cites public sources and quotes no invented prices or statistics. ## Guide - [Custom App Development: The Field Guide](https://customappdevelopment.org): What custom app development is, when it makes sense, the main stages, and where to go next. - [Custom App, No-Code or Off-the-Shelf: How to Decide](https://customappdevelopment.org/build-vs-buy): A decision framework for custom builds, no-code tools, AI-generated MVPs and existing software, and when each stops working. - [The Custom App Development Process, Stage by Stage](https://customappdevelopment.org/process): Discovery, design, build, launch and maintenance, with what the client must decide and deliver at each stage. - [How to Choose a Development Partner](https://customappdevelopment.org/choosing-a-team): Freelancers, agencies, product studios and in-house hires compared, with questions to ask, red flags and what ongoing support should include. - [What Drives Cost and Timeline](https://customappdevelopment.org/cost-and-timeline): The factors that move scope, budget and schedule, and how to write a brief that gets comparable proposals. - [After the MVP: Technical Debt, Rebuilds and Staying Reliable](https://customappdevelopment.org/after-the-mvp): When a prototype or AI-generated codebase needs re-engineering rather than patching, and how to assess technical debt. - [Custom Software for Nonprofits on Tight Budgets](https://customappdevelopment.org/nonprofits): When nonprofits should build, buy or adapt tools, how to phase scope, and how to replace manual spreadsheets and database workflows. ## Blog - [Blog](https://customappdevelopment.org/blog): articles on custom app development