What actually drives the cost of building an app.
Most app-cost articles open with a number chosen to win a search result and bury the caveats below it. This guide does the opposite: real bands from our 2026 rate card — a lean first release runs $30,000–55,000, a standard product $55,000–110,000 — set against the five drivers that genuinely move them, and the engagement model that turns a band into a fixed, transparent quote before any build begins.
Indicative 2026 bands, not a quote. What moves the number is complexity — integrations, compliance, data migration and the reliability bar you need on day one. Every engagement is priced fixed and in writing after a paid discovery sprint, and the sprint is credited in full against the build.
Five drivers move every app budget.
Team seniority
The hourly rate is the most misleading number in software. Senior engineers cost more per hour and less per outcome: fewer rework loops, architecture that survives growth, review on every change. The most expensive app is the one you build twice.
What moves it- Who reviews every change before it ships
- How much of the first version needs rebuilding
- Whether early architecture decisions survive real usage
Where the number landsA senior-weighted squad — 4 engineers plus a delivery lead — runs $19,000–24,000 a month on a dedicated engagement. The mix is named in the discovery sprint and priced into one fixed quote, so you are never paying an open-ended day rate for someone's learning curve.
Scope — and the cut-line
Scope is the largest driver by far: screens, roles, platforms, states. But the wishlist matters less than the cut-line — deciding what a chargeable first version must do, and what can honestly wait, moves the budget more than any technology choice.
What moves it- How many screens, roles and platforms v1 truly needs
- Offline, multi-language and permission complexity
- What can wait for v2 without hurting launch
Where the number landsA lean first release — 2–3 engineers, 8–14 weeks — lands $30,000–55,000. A standard product with several roles, real integrations and an admin surface lands $55,000–110,000 over 12–20 weeks. The discovery sprint fixes the cut-line and the quote prices that line, in writing.
Integrations
An app is rarely alone: payments, ERPs, telephony, legacy systems. Each integration adds discovery, edge cases and testing — and the quality of the other system's API often moves cost more than your feature list does. On TapTime, the clock-in UI was the small part; the real-time ERP sync is where the engineering lived.
What moves it- How many external systems the app must talk to
- The quality and documentation of their APIs
- Whether data must sync in real time or on a schedule
Where the number landsNo honest per-integration price exists — a documented REST API and a twenty-year-old ERP are different work. No honest per-integration price exists — a documented REST API and a twenty-year-old ERP are different work. Integrations are the driver most likely to move a build from the lean band to the standard one. Each is scoped and priced individually in the discovery sprint, against your actual stack.
Compliance and data protection
Data-protection law, audit trails, data residency and industry rules are architecture, not a checkbox. Designed in from the first sprint they are a manageable line; retrofitted after an audit finds the gap, they are a rebuild.
What moves it- Which regulations your data and market actually trigger
- Audit-trail and data-residency requirements
- How much is designed in early versus retrofitted later
Where the number landsCompliance carries no standard price — the scope is set by your data and your market. What it reliably does is move the band upward, and regulated builds are the most common reason an engagement sits in the complex-platform band rather than the standard one. Which rules apply, and what they add, is named in the discovery sprint — before the quote, not after the audit.
Maintenance and ongoing care
An app is not done at launch. OS releases, dependency patches, monitoring and the features your users ask for next are a real, recurring cost — the one most estimates quietly omit. We have shipped FeelEat's stack for 9+ years with the same team; that continuity is a budget line, and an honest guide says so.
What moves it- OS and dependency updates that cannot be skipped
- Monitoring, backups and incident response
- The feature roadmap that appears once real users arrive
Where the number landsCare plans run $550 a month for 15 hours on a stable product, $1,050 for 30 hours while it is still moving, and $1,950 for 60 hours with a named engineer on business-critical systems. Every launch carries a 30-day warranty first, and annual support typically runs at 15–20% of the original build cost. Care is quoted as its own transparent line alongside the build — a plan you accept up front, not a surprise invoice after launch. Indicative band, not a quote — the fixed number comes out of a paid discovery sprint and is credited against the build.
From unknown to a fixed quote, in three steps.
Paid discovery sprint
$2,900–4,900 over 1–2 weeks, credited in full against the build that follows. We scope the product together: workflows, integrations, the v1 cut-line, the risks worth naming out loud. You pay for the sprint because the output has standalone value — a scope you could take anywhere. The first workshop and a high-level estimate are free — usually back within three working days.
Fixed, transparent quote
The sprint ends in a number, in writing: fixed milestones and a fixed budget against the scope we agreed. No open-ended day rates — if scope changes later, the quote changes transparently with it, and you approve the difference first.
Ongoing care
After launch the same team stays on: monitoring, updates and the next iterations, planned as care rather than emergency invoices. That continuity is how FeelEat's stack has stayed shippable for 9+ years.
No open-ended day rates, no surprise invoices. 100% of the code, IP and infrastructure transfers to you, and we sign an NDA on request. Indicative band, not a quote — the fixed number comes out of a paid discovery sprint and is credited against the build.
What these drivers look like on real builds.
FeelEat — nine products, 9+ years, one team
The whole-lifecycle cost picture on one client: we have built and run FeelEat's Swiss operating stack — ERP portal, workforce apps, kiosks, connected fridges — for 9+ years, nine products on one architecture. Maintenance is not a footnote on this engagement; it is the engagement.
FeelEat TapTime — where integration set the budget
A tightly scoped mobile build whose cost story is the integration: NFC, QR and biometric clock-in for multi-site hourly teams, synced in real time to the ERP that runs payroll. The clock-in screens took weeks; the ERP spine behind them took months, and that is where the payoff came from.
Questions founders ask about app cost
Opisz to w briefie. Odpowie doświadczony inżynier — nie handlowiec — w ciągu jednego dnia roboczego.
Q.01How much does it cost to build an app?
A lean first release with 2–3 engineers over 8–14 weeks lands $30,000–55,000. A standard product — several roles, real integrations, an admin surface and operational reporting — lands $55,000–110,000 over 12–20 weeks. A complex platform, meaning multi-tenant, regulated, or migrating beside a live system, starts at $120,000–250,000+. Which band you sit in is decided by five drivers: team seniority, scope, integrations, compliance and maintenance. Indicative band, not a quote — the fixed number comes out of a paid discovery sprint and is credited against the build.
Q.02Why publish bands instead of a single price?
Because a single price quoted before scope is known prices the guess, not the work. A band is honest: it tells you which conversation you are in — whether this is a two-month release or a year-long platform — without pretending we can cost your app from a web page. The exact number is fixed after the discovery sprint, in writing, and if scope changes later the quote changes transparently with it.
Q.03What is the single biggest cost driver?
Scope — specifically the cut-line. Deciding what a chargeable first version must do, and what can honestly wait, moves the budget more than any technology choice. Drawing that line is the main job of the discovery sprint.
Q.04How do you stop the price ballooning mid-project?
The quote is fixed against a written scope with fixed milestones — not open-ended day rates. When scope genuinely changes, the quote changes transparently with it, and you approve the difference before work continues. A surprise invoice is a process failure, so the process is designed to remove it.
Q.05Is a lower hourly rate a cheaper app?
Often the opposite. Junior-heavy teams cost less per hour and more per outcome: more rework loops, and architecture that needs rebuilding at the first sign of growth. The most expensive app is the one you build twice — which is why we price outcomes, not hours.
Q.06What does maintenance cost after launch?
Care plans run $550 a month for 15 hours on a stable product, $1,050 for 30 hours while it is still moving, and $1,950 for 60 hours with a named engineer on business-critical systems. Every launch carries a 30-day warranty first, and annual support typically runs at 15–20% of the original build cost. It covers the real recurring line — OS updates, dependency patches, monitoring and the roadmap your users create — and you accept the plan up front instead of discovering it later. FeelEat has run on that model, with the same team, for 9+ years.
Q.07What do I actually get from the paid discovery sprint?
A scope you could take anywhere: workflows mapped, integrations named, the v1 cut-line drawn, risks stated — and a fixed, transparent quote against it. You pay for the sprint because that output has standalone value; if we then build, 100% of the code and IP transfers to you.
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