# Custom Web, App & SaaS Development | Depot39 AI > Build custom websites, mobile apps and SaaS with Depot39 AI. Expert-led design and development, accelerated by AI, from first idea to launch and support. [Depot39 — back to top](https://ai.depot39.com/en-ca) ## Expertly designed. Built faster with AI. Turn your idea into a scalable MVP in just a few weeks. You bring the idea. We’ll work out the technical details. ## AI brings the speed. We bring the expertise. Your product needs to solve a real problem and be easy to use. It also needs to perform well, be thoroughly tested and hold up in everyday use. Depot39 AI is a digital product design and development studio. We handle the whole process: planning, design, development, integrations and testing, through to launch and ongoing support. We use AI to speed up development and take care of repetitive work. Experienced designers and developers guide the process, review the work and stay accountable for the result. ## Better products. Less complexity. ### Get to market sooner We help you focus on what your first version really needs, then use AI under expert supervision to build it faster. You can put a working product in front of users sooner and find out what works. ### Make your budget go further Less time spent on development means lower costs and room for more useful features. Thoughtful design, code review and testing remain part of the process. ### Work directly with experts Talk to the people designing and building your product. We’ll help you weigh your options, understand the technical trade-offs and make informed decisions. ### One partner, start to finish We bring design, development and launch together. You have one team coordinating the work and taking responsibility for how everything fits. ## What we can build together Launching something new or improving an existing product? We bring the design and development expertise you need. ### Websites and landing pages Show people what you do and give them a clear reason to get in touch. We handle site structure, responsive design, lead capture and analytics, with a sales funnel that connects it all. Give visitors a clear picture of your business and an easy way to take the next step, whether that’s asking a question, booking a service or getting in touch. - **Site structure and content**: We plan the path from first impression to inquiry, including your offer, key benefits, services, common questions and calls to action. - **Design for every screen**: We create a design that fits your brand and check how it looks and works on desktop, tablet and mobile. - **Lead capture and integrations**: We connect the forms, CRM, analytics and other tools in your project scope. We can also add automation through Make or n8n, along with AI features where needed. - **Launch preparation**: We set up essential SEO and check site performance, forms and page layouts. Content management and advertising campaign setup can also be included in the scope. ### SaaS and web applications Turn your idea into a service people can use. We build the accounts, subscriptions, user roles, business rules and management tools your product needs. Build a service that helps your users get things done. We’ll define the main user flow and first-release features, then create a technical foundation for future growth. - **Product planning**: We define user roles, workflows, data structures and business rules, then decide what belongs in the first release. - **Accounts and permissions**: We build registration, sign-in, user accounts and access controls based on each user’s role. - **Features and integrations**: We develop the core workflows, APIs and notifications, with subscriptions and payments where your business model requires them. - **Management tools and launch**: We build the tools you need to manage the product, test the main user flows and set up the production environment and agreed monitoring. ### Online stores and marketplaces Make it easy for customers to find what they need and complete a purchase. We build catalogues, buyer and seller accounts, payment integrations and order workflows that fit your business. Create a smooth experience from product discovery to checkout and order fulfilment. For marketplaces, we also plan how buyers, sellers and your operations team work together. - **Product catalogue**: We build categories, search, filters, product pages, variants and stock displays, with catalogue import and export. - **Cart and checkout**: We make checkout straightforward, connect the agreed payment and shipping options, and add order status notifications. - **Store management**: We bring product, order and customer data together. The scope can include CRM, inventory or accounting integrations, automation through Make or n8n, and AI features. - **Marketplace features**: For platforms with multiple sellers, we add seller accounts, product listings, moderation and the payout rules you’ve defined. ### Mobile apps Put your service in your customers’ hands. We take care of the app experience, design, development, backend, testing and preparation for app store submission. Build an app around what your users need to do: place orders, book appointments, work with data or access your service on the go. - **Mobile experience and design**: We design screens, navigation and key interactions for smaller displays and touch controls. - **App and backend development**: We build the features, sign-in, data connections and APIs your app needs, and integrate it with your existing systems. - **Device features**: Depending on the project, we can add push notifications, camera access, location services and support for limited connectivity. - **Testing and app store submission**: We test on the devices and user flows in your project scope, then prepare the builds and materials for app store submission. ### Business systems and automation Give your team less manual work to do. We build CRMs, reporting tools, business systems and customer or partner portals, and connect the services your team uses every day. Bring scattered spreadsheets, manual tasks and disconnected services into a workflow that makes sense for your team. We build around the way your business operates. - **Process review**: We look at where data comes from, who needs it and where repetitive work, delays or errors are slowing things down. - **Tools for your team**: We build the CRM, internal portal, record-keeping, approval or reporting tools your business needs. - **Integrations and automation**: We connect your services through APIs and automate data transfers, notifications and recurring tasks. - **Permissions and oversight**: We set up user roles, activity logs and error handling, and provide instructions for the people using the system. ### AI chatbots for your knowledge base Help customers and staff find answers in your documents, guides and internal resources. We connect the content, configure search, include source references and route complex questions to a person. Let customers and staff ask questions in a chat and get answers drawn from your business content. The bot searches the sources you approve and points users to the relevant information. - **Content sources and updates**: We identify the documents, web pages, guides and internal resources to include, then set up content preparation, search and updates. - **Answers with references**: We connect knowledge-base search to a language model, include links to source material and define how the bot responds when it doesn’t have enough information. - **Chat and integrations**: We add the chat to your website or internal platform. The scope can also include a messaging app, CRM integration and handoff to a person. - **Access controls and answer testing**: We define who can access each source, test responses against agreed questions and collect feedback to help improve the bot. ### MCP servers Connect AI assistants to your business data and tools through Model Context Protocol. We integrate your CRM, internal services and APIs, with defined permissions and rules for each action. Give compatible AI assistants a way to find information and carry out approved tasks in your business systems using Model Context Protocol. - **Business data and connections**: We connect the APIs, documents and internal services in scope and define what information the assistant can access. - **Tools for business tasks**: We build tools for agreed tasks, such as finding a record, checking a status, creating a task or updating data. Each request is validated before it runs. - **Permissions and action controls**: We set up authentication, access restrictions and activity logs, and agree on where user confirmation is required in the client app. - **Testing and setup guidance**: We test with the MCP clients you plan to use, check error handling and agreed use cases, and provide connection instructions. ### AI integrations for your software Add AI to tools such as MetaTrader, AutoCAD, Blender and SolidWorks. We build custom plugins that connect your software to an external AI service, exchange data and carry out the actions you define. Connect software such as MetaTrader, AutoCAD, Blender or SolidWorks to an external AI service through a custom plugin. The plugin sends selected data to the service and receives a response or an instruction to run in the application. What’s possible depends on your requirements and the software version. - **A plugin where you already work**: We add a button, command or panel to start the workflow, using an extension format your software supports. - **Connection to an external service**: We set up the transfer of selected data, such as model parameters, drawing objects, scenes or activity history. Together, we define what’s shared, who has access and how connection errors are handled. - **AI workflows for your needs**: The external service combines models, a knowledge base and other tools. Examples include sending trade orders to MetaTrader, generating drawing notes for AutoCAD, describing Blender scenes or preparing technical descriptions of SolidWorks parts. - **Responses and actions**: We return the result to your software or trigger an approved action. We define which actions are allowed, when they can run and how to prevent duplicate commands. ### Product improvements and modernization Add features, improve the interface, address performance issues or update the technology behind your product. We start by understanding what works today and what’s holding you back. Keep improving your product as your business grows. We can add features, update the interface and address technical limitations, starting with a review of how things work today. - **Technical review**: We review the code, architecture, integrations and known issues to identify dependencies and set priorities. - **New features and better interfaces**: We design and build the features in scope, update screens and improve user flows. - **Performance and modernization**: We address performance issues, improve code structure and replace outdated components where needed. - **Testing and rollout**: We test new features and existing workflows, plan the release and prepare a way to roll back if needed. ## Move fast. With code you can build on. Building and maintaining complex software has taught us that early decisions matter. Vibe coding can get an idea off the ground quickly, but shortcuts can make a product harder to maintain and grow. ### We set the direction We start by understanding your idea. Then we map out how the product should work, how people will use it and what it needs technically. Together, we agree on the scope and how the finished work will be evaluated. ### AI helps us build faster We use AI to write code, develop tests, prepare documentation and handle suitable repetitive tasks. Our team decides where it adds value and guides it throughout the process. ### We review and take responsibility We review the code, check the business rules and test the interface and integrations. Work is approved only after it has been checked and any necessary revisions have been made. ## From first idea to launch. And beyond. You set the business priorities and approve key decisions. We coordinate the work and make sure the product comes together as planned. ### Understand your goals We learn who your product is for, what problem it should solve and what success means for your business. Then we define priorities, constraints and the scope of the first release. ### Plan and design the product We map out the structure, user flows and interface. You see how the product will work and approve key decisions before we move into full development. ### Build and share progress We set up the technical foundation, develop features and connect the systems your product needs. You see working results at each agreed stage. ### Test the whole experience We test the main user flows, permissions, integrations and product behaviour. We check each feature and make sure everything works together. ### Launch and hand over We set up the production environment, launch the product and provide the agreed files, documentation and access. We also confirm the plan for support and future development. ### Support and improve We help keep the product running, fix issues and manage updates. User feedback and your business priorities guide the next round of improvements. ## Ready for launch. Built for everyday use. Before we start, we agree on what your product needs to do, how we’ll test it and what it takes to run it day to day. Alongside design and functionality, we plan for hosting, access controls, monitoring and backups. At handover, you receive the source files, documentation and instructions included in our agreement. You get a working product with a foundation you can keep building on. What’s included depends on your project. A landing page, an online store and a SaaS platform each have different requirements. ## Clear scope. Clear costs. When the requirements are clear, we agree on the scope, deliverables and cost before work begins. For more complex products, we start with discovery and planning, then build in stages. You can review progress and decide how to invest in the next phase. If requirements change, we explain the impact on scope, timing and budget before proceeding. Hosting, software licences, paid services and other recurring costs are itemized separately, so you can plan for both development and ongoing operation. ## Frequently asked questions ### Do I need a technical brief to get started? No. Tell us what you’d like to build or improve. We’ll help you work through the requirements, set priorities and define a manageable first stage. ### Do you handle design as well as development? Yes. We cover product planning, user experience, visual design, development, testing and launch. We can start from scratch or build on designs and work you already have. ### Why work with you instead of building it myself with AI? Our team brings product design and engineering experience to the process. We plan the architecture, design the interface, review the code and test how the product works. We take responsibility for turning AI-assisted work into software that’s ready to use. ### Does using AI lower the cost? It can. AI reduces the time needed for some development tasks, which can lower the overall cost. The savings depend on the project. Our estimates cover the full scope, including design, integrations, testing and launch. ### How long will my project take? That depends on the features, design, integrations and how much content or groundwork is already in place. After an initial conversation, we’ll provide an estimate and explain the main factors. For a larger product, we can define a smaller first release to get you to market sooner. ### Can you take over an existing project or AI prototype? Yes, once we’ve reviewed it. We’ll look at the code, architecture, main user flows and technical risks. Then we’ll explain what can be reused, what needs work and whether any parts would be better rebuilt. ### How do you handle confidential information? Before work starts, we agree on access, tools and how your information may be used. That includes deciding which data can be shared with AI tools and which must stay out of them. ### Can another team take over the product later? Yes, we plan for handover. We agree in advance on the source files, documentation and access to be provided, along with the handover process. We also identify any third-party components and licences the next team needs to know about. ### What happens after launch? We address launch issues within the terms we’ve agreed on. Ongoing maintenance, updates and new features are scoped separately, so you know what’s included and how to plan the next stage. ## What would you like to build or improve? Tell us what you have in mind. We’ll help you set priorities, define a first version and figure out the next step. [Tell us about your project](https://ai.depot39.com/en-ca)