Mobile developers are a relatively small group in the Polish IT market, and a mobile app often needs two skill sets at once: iOS and Android. That makes pricing a mobile team harder than pricing frontend or backend work — and it is why it pays to know both provider rates and what specialists actually earn. Below we set out 2026 data from three perspectives: the provider, the specialist and the employer. Amounts are in Polish złoty; euro values use 4.30 PLN per EUR.
What does a mobile developer cost through staff augmentation in 2026?
The rates come from our body leasing rate benchmark for 2026, category Mobile Developer (iOS/Android). They are net rates (excluding VAT) paid to the provider per hour of the specialist’s work. A day is 8 hours.
| Level | PLN per hour | PLN per day | EUR per day |
|---|---|---|---|
| Junior | 90–130 | 720–1,040 | 165–240 |
| Mid | 140–190 | 1,120–1,520 | 260–355 |
| Senior | 200–280 | 1,600–2,240 | 370–520 |
| Lead / principal | 280–360 | 2,240–2,880 | 520–670 |
At mid and senior level, mobile rates are higher than frontend rates (senior frontend: PLN 170–240 per hour). That reflects the smaller pool of specialists and the fact that a mobile app requires knowledge of the platform ecosystem: the publishing process, Apple and Google guidelines, permissions and background execution.
The rate covers the specialist’s pay, recruitment and vetting, a replacement guarantee, contract administration and the provider’s margin. Ranges for every role are on our pricing page.
What does a mobile developer earn on B2B and on an employment contract?
The latest data on mobile developer earnings in Poland is Bulldogjob’s IT Community Survey 2025 (data collected in January and February 2025). Employment contract amounts are net take-home pay; B2B amounts are net on the invoice. Because of the group’s size, the survey does not report every level.
| Level | Employment — average (take-home) | B2B — average (net on invoice) | B2B — median |
|---|---|---|---|
| Mid | PLN 10,239 | PLN 16,138 | PLN 16,000 |
| Senior | no data | PLN 27,396 | PLN 27,000 |
The missing data for juniors and senior employees is telling: mobile developers are a small share of the surveyed population, and experienced specialists in this group work mostly on B2B. In the same survey, 7.8% of developers named Kotlin as a language they use at work, 2.4% Swift and 2.0% Dart (the language behind Flutter).
An average of PLN 27,396 on a senior’s B2B invoice is about PLN 171 per hour over roughly 160 hours a month, before social security and income tax. That is clearly more than a senior frontend developer in the same survey (PLN 23,442 on average in the TypeScript group), confirming that the market pays a premium for mobile skills.
Does choosing iOS, Android or Flutter change the rate?
Our body leasing benchmark does not distinguish between mobile technologies, and in practice the rate depends mainly on experience rather than the platform. The technology choice does change the cost of the whole project.
A native app for both platforms usually needs two specialisations: iOS (Swift, SwiftUI) and Android (Kotlin, Jetpack Compose). A cross-platform approach — Flutter or React Native — lets one team build for both platforms from shared code. That often lowers the build cost, but not the specialist’s hourly rate. Apps that rely heavily on device features, animation or background processing still need native knowledge, even with a cross-platform approach.
So decide on the technology based on product requirements and the skills of the team that will maintain the app, not on differences in rates.
For budgeting: a senior mobile developer working a full month (about 160 hours) costs PLN 32,000–44,800 net through staff augmentation. A pair of native seniors — one for iOS, one for Android — is therefore PLN 64,000–89,600 a month, before testing, backend and interface design. With a cross-platform approach part of the work is done once for both platforms, but how many hours you actually save depends on how much platform-specific code the app contains. Settle that question during analysis, before choosing the technology and the team.
Why does the provider’s rate differ from what the specialist earns?
A senior mobile developer earns about PLN 171 per hour on B2B on average, while a staff augmentation client pays PLN 200–280. The difference covers recruitment (especially slow in a small talent pool), a replacement guarantee, contract administration, the risk of gaps between projects and the provider’s margin.
Employment also costs more than the salary shows: employer contributions (about 21–22% of gross pay including the PPK pension plan), workplace and recruitment costs, and pay for holidays and sickness. The full calculation is in our article on total employer cost in Poland in 2026, and the specialist’s perspective in our B2B vs employment net pay comparison.
What raises a mobile developer’s rate?
In the mobile projects we run, these factors most often raise the rate:
- Experience publishing and maintaining apps. App Store and Google Play review, supporting many OS versions and devices, staged rollouts and responding to post-update failures.
- Modern UI tools. SwiftUI and Jetpack Compose have changed how interfaces are built, and teams need people who can lead the migration from older approaches.
- Mobile app security. On-device data storage, secure communication and protection against app tampering — critical in banking and payments.
- Accessibility. Since June 2025, the European Accessibility Act has covered, among others, banking and e-commerce apps, raising demand for specialists who know mobile accessibility.
- Domain experience. Banking, insurance and health apps require knowledge of regulation and processes.
On-site work usually raises the rate by 10–15%, and contracts shorter than 3 months by 15–25%.
How does a Polish mobile developer compare with the German market?
According to Freelancer-Kompass 2025 (freelancermap), the average German IT freelancer charges EUR 95 per hour, or about EUR 760 per day. A senior mobile developer from Poland through staff augmentation costs EUR 370–520 per day — roughly 32–51% less. At lead level the gap narrows to about 12–32%.
This compares a provider’s rate with a freelancer hired directly, without an intermediary’s costs. For the UK, IT Jobs Watch reported a median senior developer contract rate of GBP 525 per day in the six months to 16 January 2026.
How do you check that a rate matches the candidate’s level?
Before accepting a senior rate, check:
- Published apps. Ask which apps available in the stores the candidate helped build, and what their role was.
- Understanding of the app lifecycle. A senior should explain how the app behaves in the background, offline and after being interrupted by the system.
- A review of real code. A short look at an app fragment shows whether the candidate spots performance, memory and security issues.
- Project references. The provider should be able to say where and for how long the specialist worked.
If a candidate priced as a senior struggles with these questions, discussing a mid-level rate is justified. A good provider will suggest the level change before the client has to.
When does staff augmentation of a mobile developer pay off?
Staff augmentation works well when you need mobile skills for a defined period — building a new app, rewriting the interface in SwiftUI or Compose, preparing an app for accessibility requirements — or when recruiting from a small talent pool takes too long. In the example from our total employer cost article, the break-even point against a direct B2B contract is about 9 months. For a stable role lasting years, direct hiring is usually cheaper, and a middle ground is the Try & Hire model.
We build mobile teams for clients in Poland, Europe, the Middle East and the USA. Details of the model are on our staff augmentation page, and rates for every role are on our pricing page. If you are planning a mobile project, talk to us.