Power Apps

Power Apps vs Buying Software: How to Decide

By Edward Pinela — Microsoft-certified consultant · August 5, 2026

Every operations leader eventually faces the same fork: a team needs a tool, a vendor demo looks slick, and someone asks whether you could just build it yourselves. The Power Apps vs buying software question deserves a real framework, not a gut call — because both paths have failure modes, and the deciding factors are knowable up front: how standard the problem is, what you already pay Microsoft for, and who has to live with the result.

The one-question shortcut

Start here: is your process a commodity or a differentiator? Commodity processes — accounting, payroll, e-signature, help desk — are solved better by vendors who have spent a decade on them. Processes specific to how your business runs — inspections, quoting, intake, field data capture — are where off-the-shelf tools force you into their shape, and where building wins.

The trap in buying is the "80% fit": the product handles most of your workflow, so the team bridges the rest with spreadsheets and email, and two years later you're paying per-seat pricing for a tool wrapped in manual workarounds. The trap in building is scope: platforms make screens easy, so apps sprawl unless someone scopes them like a product. Both traps are avoidable once you name them.

Cost: subscription math against build math

Purchased SaaS costs scale with headcount forever; a built app costs mostly once. A 50-person team on a $30-per-user tool spends $18,000 a year indefinitely. A comparable Power App is a one-time build — often running on Microsoft 365 rights you already pay for — plus modest licensing only when premium features are involved. The three-year totals are usually not close.

The licensing detail matters, so here it is plainly. Apps that stick to standard connectors (SharePoint lists, Office 365 users, Outlook, Teams) run under seeded rights included in most Microsoft 365 business plans — incremental license cost: zero. Apps that need Dataverse, SQL, or other premium connectors need paid plans: as of 2026, Microsoft's Power Apps pricing page (opens in new tab) lists Power Apps Premium at $20 per user per month and a per-app option at $5 per user per app per month. Even the premium path frequently undercuts a per-seat SaaS subscription — but an honest scoping exercise should put both numbers side by side over three years, which is exactly what we do in a fixed-fee Power Apps consulting engagement. The build half of that arithmetic has its own guide: what a Power Apps development cost is actually made of separates the one-time build fee from the recurring licence and the run cost after go-live.

The decision table

The factors below cover the cases we see most in 20–500-person companies. No single row decides it; the pattern across rows does. If most rows point one direction for your scenario, trust that — and treat a split verdict as a sign to buy the commodity core and build the specific edge around it.

What building actually looks like

A scoped Power App is not a science project. A typical fixed-fee build runs 2–4 weeks: week one defines screens, data model, and permissions; the middle weeks build and test with the people who will use it; the end covers deployment, documentation, and admin training, followed by 30 days of hypercare. You own the result outright — there is no subscription to us.

The strongest builds pair the app with automation: the app captures the request, and a flow routes, approves, and files it. That pairing is why so many app projects start life as workflow problems — our guide to the business processes worth automating first shows where apps and flows meet, and the approval workflow tutorial walks through the flow half in detail. Apps that report on their own data also slot naturally into Power BI — useful context if you're weighing Power BI against Excel for reporting.

A worked example, labelled as such

Illustrative scenario — not a client: a 120-person field-services company needs job inspections with photos, signatures, and offline capture. Vendor option: an inspection SaaS at $24 per user per month for 40 field staff — about $11,500 per year, forever, with a workflow that almost matches theirs. Build option: a Power App on SharePoint using seeded rights — a one-time fixed-fee build, zero incremental licensing, and screens shaped to their actual checklist.

In that scenario the build pays for itself within the first couple of years and fits better from day one. Reverse the details — say the need was payroll or accounting — and buying wins just as decisively. The framework, not the platform enthusiasm, should make the call. If you want a second opinion on your specific case, our fixed-fee scoping process starts with exactly this build-vs-buy math, and the first conversation is free.