Building a mobile app in 2022 was an investment limited to large companies and well-funded startups. A native iOS and Android app easily ran €80,000–200,000 and months of development. In 2026, AI-assisted development has halved that price — without any drop in quality. This guide covers realistic price tiers for a Finnish company and explains where the savings actually come from. €20,000: an MVP on One Platform At the smallest sensible budget you get a minimum viable product: a single-platform (iOS or Android) native or cross-platform app with 4–6 core screens, user authentication, basic cloud data storage, push notifications, and a full release to the App Store or Play Store. AI generates standard UI components, data models, and API calls automatically. A human developer refines the UX, business logic, and launch. Timeline: 3–5 weeks. The same project at a traditional agency: €40,000–60,000, 10–14 weeks. €50,000: Both Platforms and a Mature Product At this budget, a Finnish SaaS company or consumer brand gets a professional app for both platforms. 15–25 screens, CRM and analytics integrations, paid subscriptions through Apple/Google stores, offline functionality, multilingual (Finnish, Swedish, English), and WCAG-level accessibility. With AI-assisted production the timeline is 6–10 weeks. In the traditional model, the same project costs €100,000–140,000 and takes 4–6 months. €100,000+: a Business-Critical Platform For more complex projects — real-time synchronisation, enterprise integrations with many systems, specialised security or compliance requirements — the saving is no longer 50%, but it remains substantial. At €100,000 an AI-powered agency builds a business-critical mobile app that a traditional shop would price at €200,000–300,000. The difference: AI handles thousands of hours of boilerplate work (tests, translations, APIs, forms) while human developers focus on architecture and security. Hidden Cost Items Worth Considering Launch cost is only the beginning. The total cost of owning a mobile app typically includes: Apple Developer membership €99/year, Google Play Console launch fee €25 one-time, cloud services (database, storage, push) €50–500/month depending on usage, analytics and crash-reporting services €0–200/month, ongoing maintenance (OS updates, security, new devices) at 15–25% of the initial investment per year. Budget these from the start or you will hit surprises three months after launch. When a Mobile App Makes Sense — and When It Does Not A mobile app makes sense when usage is recurrent (daily or weekly), when you need device features (camera, GPS, push notifications, offline), or when UX suffers meaningfully in a browser version. It does not make sense when use is sporadic, a responsive website does the job, or the goal is marketing communication (a website or Instagram achieves the same for less). Ask yourself: would a user open this app weekly? If not, resources are better spent elsewhere. For Finnish SaaS companies, retail, service businesses, and event organisers, a mobile app in 2026 is a realistic investment — no longer the privilege of listed companies only. If you are considering an app, book a free scoping call: in 30 minutes we cover a realistic scope, timeline, and budget specific to your business.