Power Apps vs Custom Software: An Honest Comparison From Someone Who Builds Both

If you research "Power Apps vs custom development," you'll mostly find articles written by companies that sell exactly one of those things.

Unsurprisingly, their answer is always the thing they sell.

I build both. Power Platform solutions for enterprises and SMEs, and full custom applications with React and modern cloud stacks. Sometimes in the same project. So here's the advice I actually give clients.

When Power Apps wins

Internal tools for teams already on Microsoft 365. If your staff live in Outlook, Teams, and SharePoint, you're already paying for much of the foundation.

An approvals app. An asset tracker. A field checklist. These get built in weeks, inherit your existing security and user accounts, and don't need a server anyone has to maintain.

Real examples from my own delivery:

• An engineering checklist app that cut processing time around 70%
• A multi-branch approval workflow that routes requests to the right manager and triggers different actions per outcome. No more decision-tracking over email
• A centralized account management system for a not-for-profit, replacing years of fragmented records

The honest downsides: per-user licensing can sting as headcount grows, deeply custom interfaces fight the platform, and consumer-facing experiences are not what it's for.

When custom software wins

Anything your customers touch, and anything with unusual scale or logic.

I built a full e-commerce platform and admin dashboard for a multi-branch retail brand. Inventory, orders, analytics. Forcing that into a low-code platform would have cost more than building it properly.

The honest downsides: longer timelines, higher upfront cost, and you now own an asset that needs maintenance. Custom software is an investment, not a purchase.

The answer nobody markets: hybrid

Increasingly, the right answer is both.

One recent build combined a Dataverse-backed Power Platform solution with a modern React application on top. Platform governance underneath, custom experience on top. Microsoft itself is moving this direction with Power Apps Code Apps.

You don't have to pick a religion. You pick the cheapest tool that meets each requirement.

The three questions I'd ask you

• Who uses it? Staff, lean low-code. Customers, lean custom.
• What do you already pay for? Existing Microsoft 365 licensing changes the math significantly.
• What breaks first? If you'd outgrow the tool in a year, factor the migration in now. It's cheaper on paper than in production.

If you're weighing this decision for a specific system, I'm happy to give you a straight recommendation. Including "you don't need me for this yet".. which I say more often than you'd think.