How we work
Services / App development
We build iOS, Android, and cross-platform apps for enterprise teams, funded startups, and field operations across Sweden, the Nordics, and broader Europe.
Trusted by
Kalmar’s technicians use ours at ports worldwide, with offline mode and 17 languages.
Familjehem Göteborg manages foster care workflows on what we built, with BankID and GDPR baked in.
Meela Health raised €2.6M in seed funding on the app we shipped.
We’ve spent a decade building mobile that keeps getting opened after launch day.
CORE PRINCIPLES
Field teams lose signal. Warehouses block reception. Ports run on metal containers that kill connectivity. We design data sync, conflict resolution, and local storage from day one for any app that gets used outside a desk. Kalmar’s app works on a terminal with no signal and syncs when it reconnects. Familjehem Göteborg’s app stores foster care updates locally and pushes them once the carer is back online.
Most apps don’t need separate iOS and Android codebases. React Native gives you one team, one codebase, and a single source of truth. We go native when the project demands it: heavy hardware integration, AR or ML on-device, animations or sensor work that won’t survive a JS bridge. We tell you which fits your project during discovery, with the budget math behind both options.
BankID, Swish, Klarna, Stripe, and the long list of regional banking and identity providers Nordic apps need. Most foreign agencies bolt these on at the end and discover the edge cases the hard way. We’ve shipped BankID flows in Familjehem and the property management app under NDA. We’ve integrated Swish in consumer apps and Klarna in e-commerce. The integrations work, including the parts the documentation doesn’t cover.
WHAT CLIENTS SAY
The PDT app was our first big step into the digital world using apps and Cloud solutions. By implementing this app, we could, with one tool, solve multiple issues that we had with our delivery process of new machines to our customers. The app helps us improve the machine quality, shorten our lead time and increase our cash flow.
Zendev understood our vision of connecting women with the right therapists. They improved the platform, were easy to collaborate with, and meeting them in person built real trust.
We needed a tech partner who could help us scale Greenfee365 into the global marketplace, and Zendev exceeded our expectations.
Their team developed custom solutions that optimized our booking platform, resulting in faster load times and an improved user experience
Zendev really transformed our entire tech situation in the company. We had this big backend system that was overwhelming us, but now it’s running beautifully.
What I appreciated most in our partnership was the way I could explain our business to you and how we could develop the online store to fit our needs.
The 110% commitment we received from Zendev was truly remarkable.
Zendev provided the solution we needed. Implementing Progressive Web App (PWA) significantly improved our site speed, Google rankings, and conversion rates. The new platform has driven a 33% increase in revenue and 17% more users.
FAQ
App development projects at Zendev start at €40,000 and scale based on platform, complexity, and integrations. Cost depends on whether you go cross-platform or native, how many third-party systems you connect to, and how much design and discovery the project needs. Our delivery team works from Mostar and Sarajevo while client work happens in Gothenburg, which lands us between Swedish in-house rates and offshore alternatives. Discovery week gives you a precise estimate.
A working MVP usually ships in 3 to 6 months. The myflow app shipped in 3 months from concept to production. The Kalmar PDT app reached field deployment within a year. Timelines stretch when integrations to BankID, Swish, ERP, or legacy backends are involved. They compress when scope is clear and the design system exists. Discovery week gives you a real estimate, not a placeholder.
Most projects should start cross-platform with React Native. One codebase, one team, faster iteration, lower long-term maintenance cost. Go native when you need heavy hardware integration, on-device ML, AR, or performance-critical animations. We’ve shipped Kalmar in React Native and gone native iOS for an industrial manufacturer where camera and sensor work demanded it. We tell you which fits during discovery, with the budget math behind both.
Yes. We’ve shipped BankID authentication in Familjehem Göteborg and in a Swedish property management app under NDA. We’ve integrated Swish in consumer apps, Klarna in e-commerce platforms, and Stripe across multiple SaaS products. Nordic identity and payment stacks have edge cases that take experience to handle properly. Most foreign agencies hit them in production. We hit them in development.
You own everything from day one. Code, repository, App Store and Play Store accounts, deployment pipelines, documentation. All of it lives in your accounts, not ours. We don’t lock you into proprietary frameworks or charge ongoing fees for access to what we built. If you ever bring development in-house or switch providers, you take everything with you. Clean handover, full documentation, no surprises.
Yes, end to end. We submit, manage review cycles, handle rejections, and push through update releases. We’ve published apps to both stores for Kalmar, Meela Health, Familjehem Göteborg, and several NDA-protected clients. The submission process has changed many times over the years and continues to. We track the current requirements so you don’t lose two weeks to a rejected build.
Yes, most of our app clients stay on for maintenance and ongoing development. App stores release breaking changes annually. Devices get retired. Users find edge cases nobody tested. We offer flexible post-launch support from full embedded teams to maintenance-only retainers. Several of our app clients have worked with us for 5+ years on continuous evolution of the product after the initial build shipped.
