Power Apps Explained: What It Is and How It Works

Most companies already have the tool they need to fix their worst internal process problems. They just have not built it yet.

Every organization has a version of the same problem. Somewhere in the business, a small team is running a critical process on a spreadsheet, an email chain, or a shared inbox, because the process was never important enough to earn a spot on the IT department's development backlog. A leave request tracker. A site inspection checklist. A supplier onboarding form. None of these are complex enough to justify a full custom build, but all of them cost real time every week they stay unbuilt.

Microsoft Power Apps exists to close that gap. It is a low-code platform for building custom business applications, aimed at letting both professional developers and business users turn a process that lives in someone's head, or in a spreadsheet, into a proper app with a real interface, real data, and real governance behind it.

What Power Apps actually is

Power Apps is part of Microsoft's Power Platform, alongside Power Automate, Power BI, and Copilot Studio. It comes in two main forms, and the choice between them shapes what a project should look like from day one.

• Canvas apps: built visually, screen by screen, with a drag and drop designer. Best suited to a specific task or workflow, such as a field inspection app or an expense submission form, and can connect to well over a thousand data sources through prebuilt connectors.
• Model-driven apps: generated from an underlying data model rather than a fixed screen layout. Best suited to more complex business processes with many related records, such as case management or asset tracking, where the app's structure should follow the data rather than the other way around.

Both app types run on Microsoft Dataverse, the platform's secure, structured data layer, which is also what gives Power Apps its enterprise-grade security and governance model rather than leaving data scattered across personal spreadsheets.

Where AI now fits into the build process

The most significant recent change to Power Apps is how much of the build process AI now handles. According to Microsoft's own product documentation, current capabilities include:

• Natural language app generation: describing what an app needs to do in plain language and getting a working first draft, including a proposed data model, rather than starting from a blank canvas.
• AI powered data entry: autofilling forms directly from emails, chat messages, documents, and images, which is aimed squarely at the repetitive data entry work that eats up frontline and back office time.
• Natural language data exploration: letting app users ask questions of their data in plain language and get answers, charts, and summaries back, instead of needing to know how to build a report.
• Embedded Copilot: bringing Microsoft 365 Copilot directly into custom built apps, grounded in the organization's own business data, so the assistant experience carries over from Microsoft 365 into the app itself.

None of this removes the need for governance. Power Platform still centralizes environment management, data loss prevention policies, and access auditing in one admin hub, which is what lets IT teams allow this kind of building without losing visibility into what gets built.

Concrete examples of Power Apps in use

Microsoft publishes named customer outcomes for Power Apps, and several are worth citing because they show the range of scale the platform is actually used at, from a single app to thousands.

• Heineken: has built more than 10,000 applications on Power Apps across the business, which Microsoft credits with a combined 3.1 million hours of increased productivity.
• EY: integrated Power Platform with its SAP systems to modernize global finance operations, a project Microsoft reports cut operational costs by 37 percent and saved roughly 120,000 hours of work per year.
• Accenture: has more than 200,000 employees using apps built on Power Platform every month, at a scale Microsoft associates with around 6 million dollars in annual savings and 50,000 employees newly trained as low-code developers.
• T-Mobile: built a single app combining Power Apps and Copilot Studio that Microsoft reports saved the company 4 million dollars, with about 83,000 unique users a month.

Independent analysts have made similar findings. A Total Economic Impact study conducted by Forrester Consulting in July 2024, commissioned by Microsoft, found that organizations using Power Apps saw on average a 50 percent reduction in app development time, a return on investment of 206 percent over three years on premium licensing, and a payback period of under six months. Separately, Forrester named Microsoft a leader in its Q2 2025 Wave for low-code development platforms for professional developers, and Gartner included Microsoft in its 2025 Magic Quadrant for enterprise low-code application platforms.

Where Power Apps fits in the wider stack

Power Apps is rarely the whole solution on its own. In practice it is one piece that connects to the rest of an organization's Microsoft environment:

• Power Automate: handles the workflow and automation logic behind an app, such as routing an approval or triggering a notification.
• Power BI: supplies the analytics and dashboards that can be embedded directly inside a custom app.
• Copilot Studio: builds the custom AI agents that can sit inside an app or work alongside it.
• Microsoft Teams: brings an app directly into the flow of daily work rather than requiring a separate destination.
• Azure and Dynamics 365: extend Power Apps with custom code for professional developers, or connect it to existing CRM, ERP, and SAP systems rather than replacing them.

Practitioner's Note

The most common failure mode we see with low code platforms is technical and organisational. Give business teams a fast way to build apps, and within months dozens of small, uncoordinated tools start appearing across departments, each with its own data, its own owner, and no plan for what happens when that owner leaves. Low code speed only pays off if it is paired with an environment strategy, clear data loss prevention policies, and an honest line for when an app has outgrown citizen development and needs to move to a properly owned, IT supported build. Skip that step, and the platform just relocates the maintenance burden instead of removing it.