Powstania Warszawskiego 15
31-539 Kraków
Real fixed price ranges from a Flutter agency that ships production apps every month. No hourly guessing, a feature by feature breakdown, and a calculator so you can scope your own budget before the first call.
30 minutes, no preparation needed.
Starts at
$10,000
A focused first version, iOS and Android from one codebase
Most projects land at
$18,000 to $25,000
Full product with custom backend, payments and onboarding
Time to launch
8 to 20 weeks
8 to 12 for a first version, 10 to 20 for a full build
A mobile app costs from $10,000 for a focused first version, $18,000 to $25,000 for a full cross platform product with a backend and payments, and $35,000 and up for an operational system with several roles and integrations.
What moves the number is not the screen count. It is how many user roles the app has, whether money moves through it, whether it has to work without a connection, and how deep the integration with your existing systems goes. Apps Value quotes all of this as one fixed price, agreed in writing after scoping.
Almost every mobile app project we scope lands in one of these three tiers. Here is what each one actually includes.
Simple
$10,000
8 to 12 weeks
Full product
$18,000 to $25,000
10 to 20 weeks
Complex
$35,000+
20+ weeks
All three tiers are fixed price with Flutter, so iOS and Android come from one codebase. No double billing for a second platform.
Most of the gap between two proposals is not margin. Each agency filled the same missing information with different assumptions. Fix six things in the brief, and the spread between quotes collapses to something you can actually compare.
The largest multiplier in mobile, and the one most often left implicit in a brief. Two roles is close to two applications sharing a backend. Three roles means you are building a platform.
Taking a card payment is cheap and solved. Splitting a payment between parties, holding funds, and handling refunds and disputes is a different category of work.
Reading cached data offline is straightforward. Creating records with no signal and reconciling them against a server other people also changed is genuinely hard engineering.
A documented REST API is routine. An on premise system with no API, or a legacy database that has to be reverse engineered, is where budgets actually expand.
These two numbers are not comparable. An hourly estimate is a guess with the risk on you. A fixed price is a commitment with the risk on the agency.
Native means two codebases, two teams, and roughly double the build and the maintenance. For most products Flutter removes that cost driver entirely.
Generic tiers are a starting point. Real projects have a category, and each one carries its own typical range for a full production build, based on what we have actually scoped and shipped.
Every quote we send breaks the app down this way, so you can trade features against budget instead of negotiating a lump sum. These are the ranges we work from.
Select what you need and get an instant price preview.
This calculator gives you a rough preview to think through scope. Real projects are quoted after a discovery call where we break down every feature in detail. Our smallest fixed price engagement is $10,000.
Yes, for most products, and the saving is structural rather than a discount. With Flutter, iOS and Android come from one codebase, so you pay for one build and maintain one product. Native means two codebases, two teams, and roughly double the cost both during the build and after launch.
Native: Swift and Kotlin
$50,000+
2 to 4 developers, 20 to 36 weeks. Two codebases to maintain after launch, so maintenance cost roughly doubles too.
Flutter: cross platform
$18,000 to $25,000
1 to 2 developers, 10 to 20 weeks. One codebase to maintain after launch.
Yes, and the difference is large. Senior Flutter developers in Poland work at $35 to $55 per hour against $120 to $200 in the US, so the same scope produces a very different invoice. Rates track local salary markets rather than skill, and the overlap with the US East Coast afternoon removes the communication tradeoff.
US agency rate
$120 to $200 per hour
A 250 hour project at $150 per hour is $37,500. A 500 hour project is $75,000. Rates in NYC and SF run toward the top of this range.
Eastern Europe, Poland
$35 to $55 per hour
The same 250 hour project at $45 per hour is $11,250. The same 500 hour project is $22,500. That is roughly 65 to 70% less than US rates for the same scope.
The tradeoff people worry about is communication, and that is solved by overlap rather than by geography. European working hours cover the East Coast afternoon, which is enough for standups, code review, and demos to happen live rather than over a 24 hour email delay.
If you already know roughly what version one has to do, send it over. We reply with a written scope, the counts behind it, and a fixed price, with no sales call in between.
Send your scope by emailMost agencies quote development cost and stop there. These show up after you sign and after you launch, so budget for them upfront.
We scope the project in writing first, then attach one number to that document. The price covers the whole agreed scope and does not move unless the scope moves. Additions are priced separately before anyone builds them, and you decide whether to take them, defer them, or trade them against something already in scope.
Four steps, and you get a figure you can budget against before committing to development.
You walk us through the product and your constraints. We ask the questions that set the budget and tell you what is realistic. If we are not the right fit we say so on this call.
We turn the idea into a written spec: user roles, screens, integrations, and what is deliberately out of scope for version one. This is where most of the budget gets decided.
One number, itemised, so you can trade features against budget before signing. The price does not move unless the scope does.
Working software at every milestone with a live demo, not a status email. Payments tied to shipped work.
How much does it cost to build a basic MVP?
A focused MVP starts from $10,000 and takes 8 to 12 weeks. That covers up to 5 to 7 core screens, a simple backend, and basic auth with no third party integrations. What a first version costs depends far more on what the app does than on how many screens it has, which is why we wrote a verdict on each feature in MVP app features.
How much does it cost to build an app for both iOS and Android?
With Flutter, building for both iOS and Android costs the same as building for one platform, since one codebase runs on both. This is the main reason US startups choose Flutter over native development.
How much does it cost to hire a Flutter developer?
Senior Flutter developers in Poland charge $35 to $55 per hour versus $120 to $200 in the US. For ongoing capacity, you can hire a dedicated Flutter developer from our team at a flat monthly rate.
How long does it take to build a mobile app?
A focused MVP takes 8 to 12 weeks. A full production app takes 10 to 20 weeks. Complex enterprise apps take 20 or more weeks. Timeline and cost move together: a tighter timeline usually means a smaller scope, not faster development. The week by week breakdown is in our mobile app development timeline.
Why do two agencies quote very different prices for the same app?
Usually because they are pricing different scopes. If the brief does not fix the number of user roles, whether money moves through the app, and whether it works offline, each agency fills those gaps with its own assumptions. Hourly and fixed price quotes are also not comparable: an hourly estimate is a guess with the risk on you, a fixed price is a commitment with the risk on the agency.
What should I check in a quote before I sign it?
Whether the scope is written with counts rather than verbs, whether acceptance is a written list, what the warranty covers and for how long, and how a change gets priced and dated. All four are set out in what a fixed price app development contract has to say.
Is it cheaper to outsource mobile app development to Eastern Europe?
Yes, meaningfully so. Senior Flutter developers in Poland charge $35 to $55 per hour versus $120 to $200 in the US. Eastern European teams also overlap with US East Coast hours, so communication is not the tradeoff it used to be.
How much does it cost to maintain a mobile app?
Backend hosting runs $20 to $500 per month depending on usage. Third party API fees add $0 to $2,000 per month at scale. In our fixed price model, everything agreed in the scope is covered, so if a feature stops working, fixing it is our responsibility.
What does a field service or HVAC app cost?
Operational products sit at the top of the range, from $35,000 to around $60,000, because coverage rules, offline work and integration with the system you already run decide the scope. The vertical specifics are on our field service app development and custom HVAC software development pages.
Who owns the code you write?
You do, in full. Source code, repositories, and infrastructure accounts are yours from the start of the project rather than handed over at the end. We do not use proprietary frameworks that would tie the app to us.
What happens if the scope changes mid project?
We price the addition separately and you decide whether to take it now, defer it, or trade it against something already in scope. Nothing gets added silently and the original agreed price does not move on its own.
What is included in your mobile app development price?
Flutter development, code review, weekly progress updates, and deployment support. Backend development is included when scoped together. Unit testing and UI and UX design are separate unless agreed otherwise upfront.
Do you build mobile apps for US based companies?
Yes, the majority of our clients are US based. We overlap with East Coast working hours, communicate in English, and have direct experience with US App Store guidelines, Stripe payment processing, and data privacy requirements.
What are the hidden costs of mobile app development?
UI and UX design not included in the dev quote ($2,000 to $8,000 extra), App Store fees, backend infrastructure, third party API fees, and a 10 to 15% buffer for scope changes mid project.
Everything else worth reading before you commit a budget.
Contract
What a fixed price contract has to say
First versions
MVP app features, verdict by feature
Service
MVP development for startups
Pricing model
How fixed price delivery works
Timing
Mobile app development timeline
After launch
Mobile app maintenance cost
Vertical
Field service app development
Vertical
Custom HVAC software development
Nearshore
App development for NYC businesses
Describe what the app has to do and who will use it. You get an honest breakdown of scope, timeline and cost, and a written fixed price before anything is built.
30 minutes, no preparation needed.