Powstania Warszawskiego 15
31-539 Kraków
Apps Value is a mobile app development company in Kraków, Poland, building Flutter and React Native products for founders in the United States. One written scope, one fixed price, one team from the first call to the release in both app stores.
You describe the product, we run discovery, and you receive a scope document with a fixed price and a release date. One team then builds it in Flutter or React Native, ships to the App Store and Google Play, and hands over the code and the accounts. A first version usually reaches real users in 8 to 12 weeks.
A US agency gives you full coverage at a price built for funded companies. A freelance marketplace is cheap until the developer moves on and the code has no owner. A nearshore product team gives you the coverage of an agency with a budget a seed stage company can approve.
Strong process, senior people, and a rate card written for companies with a Series A behind them. The work is rarely the problem, the entry point is. Many founders discover the quote covers a product two versions ahead of what they need now.
The lowest number on the page and the fastest start. The risk appears in month two, when one person holds the whole codebase, works without review, and has three other clients. Recovering that work usually costs more than building it properly once.
A permanent European team with design, mobile development and release ownership in one place, contracted for a fixed scope. You get one accountable partner instead of a hiring problem, at a price that fits a first product budget.
A startup does not need more developers. It needs a version that reaches real users, on a number that was agreed before anyone opened an editor.
We fit founders who know what version one has to prove and want a complete product team for a defined budget. We are a poor fit for open ended research work, for filling a single seat inside an existing team, and for products handling patient data under HIPAA.
Pre seed and seed companies building their first mobile product. Funded founders replacing a no code prototype that has hit its ceiling. Teams with a web product that now needs a real app on both platforms.
Also companies that started with a freelancer, ended up with a half finished codebase, and need one team to audit it and take it to a release.
Projects where the scope cannot be described yet, because a fixed price needs something to be fixed against. In that case we start with a paid discovery and quote afterwards.
Requests to add one developer to an internal team, since we take responsibility for a whole product instead. And anything storing protected patient records, where we stay in consumer health, fitness and wearables.
Discovery produces a document naming every screen, every state and every integration in version one, plus what is deliberately left for later. The price is attached to that document. When something new appears mid build, and it always does, we price it as a change instead of quietly absorbing it and losing the deadline.
The same document protects you. Everything written in it works on release day, and fixes to agreed scope are ours to make rather than a support invoice.
The people on your intro call are the people who write the code. There is no handover from a sales team to a delivery team you have never met, and no layer of account management between you and the engineers. You work with a product lead who owns the release and with the mobile developers building it.
Store submission is part of the job. Review rejections, privacy declarations, subscription setup and the first production incident all belong to the same team.
Kraków runs on Central European Time, six hours ahead of New York and nine ahead of San Francisco. Our afternoon is your morning, which gives a reliable window every working day for calls and decisions. Everything outside that window runs asynchronously in writing, so a question asked in the evening in California has an answer waiting at breakfast.
East Coast founders usually need one scheduled call a week and a written update. West Coast founders tend to take an early call and keep the rest in Slack.
Bring the version you want in the stores first, and you will hear what it takes to build it and how long it runs.
Book an intro callAll four continental US time zones. Kraków is on Central European Time, which puts our afternoon inside your morning everywhere from New York to San Francisco. Founders in Eastern and Central time get the widest window, Pacific time founders usually take one early call a week.
Six hours behind Kraków. Your 9am is our 3pm, so a full working afternoon overlaps with your morning.
Seven hours behind. Calls land comfortably in your morning and our late afternoon, with written updates waiting when you start.
Eight hours behind. One fixed call slot a week plus asynchronous updates covers most projects at this distance.
Nine hours behind. An early call on your side, and every question asked in your evening has an answer before you wake up.
We invoice your US company in dollars against accepted milestones, under one agreement covering scope, schedule and ownership.
For larger builds we travel for a kickoff or a launch week when it helps the project, agreed as part of the plan.
React Native fits teams with an existing React web codebase or a heavy dependency on native modules. Flutter fits products with a lot of custom interface work and a need for identical behaviour on both platforms. Both ship iOS and Android from one codebase, and both are a better first move than staffing two native teams.
Interface heavy products, animation and design led apps, and cases where one team has to hold both platforms without divergence. It is also our fastest path from designs to a working build. See Flutter app developers in Poland.
Companies with React on the web, teams that expect to hire US based developers later, and products relying on native libraries with mature React Native bindings. See our React Native work.
Marketplaces, booking and scheduling products, subscription consumer apps, fitness and consumer health products, field operations tools, and takeovers of unfinished codebases. These are the categories where we already know where the hard parts sit, which is why our estimates hold.
Supply and demand in one app, matching, in app booking and payouts. The cold start problem is a product decision before it is a technical one.
Slot locking, cancellations, recurring schedules and calendar sync. Simple to describe, unforgiving to build correctly.
Onboarding, paywall, trials and renewals across both stores, with the analytics needed to see where the funnel leaks.
Training and habit products, wearable integrations and progress tracking. Consumer scope only, no protected patient records.
Apps used away from reliable signal, where writes queue locally and sync later without losing a technician's work.
An existing Flutter or React Native codebase from a previous supplier, audited, stabilised and taken to a release.
19 products so far, across marketplaces, booking platforms, fitness apps and field operations software, for clients in the United States and Europe. Three of them are the clearest reference points for a startup build.
A two sided marketplace built in Flutter with an in house booking backend, delivered in two week iterations with the founder reviewing a build every Friday. Read the Loopy Jobs case study.
A fitness booking product that went from kickoff to launch in 20 weeks. In the first 60 days the client measured 18 percent more bookings and a 4.9 average trainer rating.
A booking and fleet platform for seasonal equipment rental, running real inventory across locations. Read the Gridio case study.
Beyond consumer products we build field operations software, including a technician app for an HVAC services company in Florida, which is our closest US delivery reference. If you want to see how an engagement runs before you commit, read what each stage of the project asks of you.
Five stages: an intro call, discovery and scope, a fixed quote, the build in two week iterations, then release and handover. Most first versions run 8 to 12 weeks from kickoff, and you have an installable build on your phone from the early weeks onward.
Thirty minutes on what the product has to prove, who it is for, and when it needs to exist. If we are not the right team for it, you hear that on the call.
Working sessions that turn the idea into a screen by screen scope, a technology choice between Flutter and React Native, and an explicit list of what stays out of version one.
One price for that scope, split into milestones with dates. Nothing starts until you have it in writing and are comfortable with it.
Design first, then development, with an installable build on your phone every week and a written summary of what changed and what comes next.
Store submission on both platforms, analytics and crash reporting live, then the repository, the accounts and the documentation transferred to you.
The price depends on how many screens the product needs, how many systems it talks to, and whether it needs a backend of its own. We quote three shapes: a focused first version, a full production product, and a platform with several roles or a marketplace. Current figures sit on our pricing page.
One user type and the core flow end to end, released to real users. The version that answers whether the idea works at all.
Several roles, payments, notifications, admin tooling and the polish a paying audience expects from day one.
A marketplace or operations product with a custom backend, external integrations and a longer delivery timeline.
Figures live on the pricing page, with the reasoning behind them in our guides on mobile app development cost and what an MVP costs by app type. If you are still choosing a supplier, our guide on how to choose a mobile app development company lists the questions worth asking any of us.
Five words carry most of the meaning in an app development proposal: discovery, scope, fixed price, MVP and handover. Suppliers use them differently, so here is exactly what each one means in ours.
The paid phase that turns an idea into something quotable: user flows, screen list, technical decisions and the boundary of version one. It ends with a document, not a conversation.
The written list of what the app does and, just as importantly, what it does not do. Anything outside it is a change request with its own price and its own schedule.
One agreed number for that scope. If the build takes longer than we estimated, the difference is ours to absorb. If the scope changes, the price changes with it.
The smallest version that puts the core promise in front of real users. Not a demo and not a prototype: a product in the stores that people can pay for or sign up to.
Transfer of the repository, the store accounts, the backend project and the documentation to your company, so nothing about the product depends on us continuing.
A team in a nearby time zone rather than an offshore one. From the United States that means a European partner with a daily overlap, not a night shift handoff.
Yes, and often. What matters is whether the scope of version one is small enough to match the money that exists today. On the intro call we usually cut the feature list before quoting anything.
We recommend, you decide. React Native fits products with an existing React web team or heavy native module needs. Flutter fits products with a lot of custom interface work. Both ship to iOS and Android from one codebase.
Typically 8 to 12 weeks from kickoff for a first version, longer for platforms with a custom backend or several user roles. Store review adds a few days on iOS and usually less on Android.
You do, from the beginning. The repository is yours, the App Store and Google Play accounts are registered to your company, and everything is transferred at handover.
We price it as a change and you approve it before anyone builds it. That mechanism is what keeps a fixed price honest for both sides instead of eroding the deadline quietly.
We contract directly with US companies and invoice in dollars against milestones. Payment terms and the delivery schedule sit in the same agreement, so a milestone is paid once it is accepted.
Yes. We start with an audit of the existing codebase and a written verdict on what can be kept, what has to be rewritten, and what it costs to reach a release. Takeovers are quoted the same way as new builds.
One person who can make decisions and is reachable inside the overlap window, plus early access to accounts and any third party systems. Everything else is our side of the table.
In practice the daily overlap window matters more than the distance. You get a fixed call slot each week, written updates, and direct access to the developers rather than an account manager relaying messages.
We sign your NDA before the first detailed conversation if you want one. All intellectual property in the work we deliver belongs to your company, assigned in the contract rather than promised verbally.
Yes. Our clearest US reference is a field technician app for an HVAC services company in Florida, alongside consumer and marketplace products for clients across Europe. We can walk through the closest match to your product on the call.
Everything inside the agreed scope is covered by us, so store rejections and defects in delivered features are not billed as support. New features are quoted as their own scope, either as a follow up project or as a rolling arrangement.
Bring the product you want in the stores this year. You will leave the call knowing what it takes to build it, how long it runs, and whether we are the right team for it.
30 minutes, no preparation needed.