Our Zürich-based mobile app development firm delivers the full stack — Native iOS (Swift/SwiftUI), Native Android (Kotlin/Jetpack Compose), React Native and Flutter cross-platform. Apple Developer + Google Play Console with Swiss IBAN (PostFinance / UBS / ZKB), App Store + Google Play publishing, Twint / Stripe CH / PostFinance / SIX / Datatrans / Apple Pay / Google Pay integration, QR-Bill (ISO 20022), Firebase Analytics + push, offline mode, biometric login, dark mode — all standard. FADP/revDSG compliant (NOT EU GDPR), Swiss hosting available. Fixed CHF price, 12-month warranty, source code 100% yours.
Technologies & Platforms We Use in Switzerland
What We Build
From Apple Developer + Google Play Console setup with Swiss IBAN to App Store release, from Twint integration to push notifications — everything in one package.
iPhone + iPad compatible, iOS 15+. Modern UI with SwiftUI, reactive flow with Combine. 100% App Store guidelines compliant — first-submit approval guaranteed. Apple Developer Swiss entity, Swiss IBAN for payouts.
Android 8+ support, Material You 3.0, 40% faster development with Jetpack Compose. Google Play Console with CHF payout, in-app billing, FCM push integrated.
Single codebase, two platforms — 50% cost savings. React Native (Expo + Bare) or Flutter Material/Cupertino. Native modules bridged when needed. Trilingual DE/FR/IT from day one.
NestJS / Node.js REST or GraphQL API. PostgreSQL + Redis. Hosted at Infomaniak, Hetzner CH, Swisscom or Exoscale — FADP/revDSG compliant. Realtime via WebSocket.
Clickable Figma prototype, Apple Human Interface + Material Design 3.0 compliant. Dark mode, dynamic type, accessibility (VoiceOver/TalkBack) standard. Trilingual DE/FR/IT strings considered in design.
Apple Developer account (CHF 99/year), Google Play Console (CHF 25 one-time). App icon, screenshots, ASO description in DE/FR/IT/EN, FADP-compliant privacy policy, in-app review prompt — all included. Free revision if rejected.
Real Mobile Apps
Each one live on App Store + Google Play CH. References shared during discovery call.
B2C merchant with Galaxus + Digitec + own webshop. Web + iOS + Android from a single backend. Twint + Apple Pay + PostFinance. Push notifications boosted conversion 41%.
Food delivery across 14 Swiss cities. Customer orders via app, restaurant receives on printer, courier app with route optimization. Twint + card + cash. UI in DE/FR/IT/EN.
Swissquote-style trading + wallet app. FINMA compliance (risk classification, AML/CTF). Twint payout, QR-Bill scan, biometric login with Face ID/Touch ID. SwissID integration.
Regional public transport operator. Timetables, ticket purchase via Twint, QR-code e-ticket, real-time delays. Offline mode for tunnels. iOS + Android trilingual.
Patients book appointments via app, view lab results, e-prescriptions as PDF. Insurance integration (Helsana, CSS, Swica). FADP-compliant, data in CH datacenter. iOS + Android.
Industrial B2B with 220 reps. App shows catalog, order auto-recorded in Abacus, QR-Bill generated for invoice. Offline mode for field work.
How We Work
Fixed CHF price, fixed schedule. Apple approval (1-3 days) and Google Play (hours) included. Free revision if rejected.
We talk through your business (60-90 min). Target users, 3 main screens, native vs cross-platform, integrations (Twint, QR-Bill, card, push, biometrics) clarified. Within 3 business days, fixed-price CHF quote broken down by module.
Clickable Figma prototype. Apple Human Interface + Material Design 3.0 compliant. Dark mode, dynamic type, accessibility. You walk through each screen and approve. Animations in Lottie/Rive. Trilingual DE/FR/IT strings.
If native, two parallel teams (Swift + Kotlin). If cross-platform, React Native / Flutter single codebase. 40% faster with Cursor + AI tooling. Each week a build hits TestFlight + Firebase App Distribution — you test on your iPhone.
NestJS backend, PostgreSQL, hosted in CH (Infomaniak/Hetzner CH/Swisscom). Twint SDK, PostFinance Checkout, Stripe CH, QR-Bill generator. Push (OneSignal/FCM), Analytics (Firebase), Crash (Sentry). UAT test with your team.
Apple Developer (CHF 99/year) and Google Play Console (CHF 25 one-time) in your name with Swiss IBAN (PostFinance/UBS/ZKB). Icon, screenshots, ASO in DE/FR/IT/EN, FADP-compliant policy. iOS approval 1-3 days, Android 2-8h.
12 months free bug-fix warranty. iOS/Android SDK updates (iOS 18, Android 15) included. 24/7 crash monitoring. New features in monthly sprints. Maintenance optional: CHF 950/mo (8h) to CHF 6'200/mo (60h), ad-hoc CHF 165/h.
Local marketplaces, carriers, payment methods and compliance frameworks — from a single panel
A premium saatçi/aksesuar markası in Zürich
"Galaxus + Amazon.de DACH entegrasyonuyla 5 ayda 80K CHF ciro"
Tailored Quote
No cookie-cutter packages. We listen to your needs, clarify screens, and within 3 business days deliver a fixed CHF price + fixed schedule quote. Discovery call free, no commitment, NDA signed.
Regardless of scope, the following are delivered as standard — no extra cost.
Bring these — we deliver the right quote in 60 minutes.
Native (Swift + Kotlin): Highest performance + access to new Apple/Google features (Live Activity, App Clips, Material You). Recommended for: banking/FINMA apps, AR, video, 500K+ users. Cross-Platform (React Native / Flutter): 50% cheaper, single codebase, 2x faster development. Recommended for: MVP, e-commerce, B2B, content apps. Advice based on your scenario in the discovery call.
Yes, Twint SDK integration is standard for Swiss apps — Twint dominates ~60% mobile payments. We integrate Twint Pay (P2P), Twint Checkout (e-commerce), TWINTtoApp deep linking. PostFinance Checkout, Stripe CH, SIX, Datatrans, Worldline, Apple Pay, Google Pay in parallel. QR-Bill (ISO 20022) invoice scanning also included.
Switzerland follows FADP (revDSG since 1.9.2023), not EU GDPR. Both are equivalent (EU Adequacy Decision), but FADP has Swiss specifics (higher fines, Cybersecurity Act NCSC). Optional Swiss hosting (Infomaniak/Hetzner CH/Swisscom). For cross-border e-commerce (EU↔CH), we integrate BAZG e-dec / Passar customs API and automatic VAT handling.
Google Play: 2-8 hours post-submit (often live same day). Apple App Store: 1-3 business days post-submit. Account setup included: Apple Developer (CHF 99/year) and Google Play Console (CHF 25 one-time). Account in your name with Swiss IBAN (PostFinance/UBS/ZKB) — 100% ownership yours. Free revision if rejected.
If you operate across Switzerland: yes, trilingual DE/FR/IT is standard (often + EN). Multilingual considered from design + code onwards (i18n via string files) — no extra cost for first 2 languages. Each additional language: CHF 1'200-2'500 translation + QA. Romansh (RM) optional, ask us.
Each project gets a senior mobile developer (min 5 years iOS/Android). Our 12-year Zürich team has worked for Swiss banks, Galaxus and SBB partners. Juniors work under code review — output is always senior's responsibility. We introduce the assigned developer in the discovery call.
Yes. We have built FINMA-licensed fintech apps (Swissquote-style). We know risk classification, AML/CTF, capital requirements, MROS reporting, cybersecurity (NCSC), combined audit requirements. Important: FINMA license you apply for yourself (or via lawyer) — we deliver the technical compliance. We can recommend FinTech lawyers in Zürich/Geneva if needed.
Source code 100% yours. GitHub repository transferred free. You can switch to another mobile developer in Switzerland or hire in-house. App Store and Google Play accounts in your name with Swiss IBAN — 100% ownership yours. Vendor lock-in is not our model.
A Swiss user spends an average of 4.7 hours per day on mobile and expects an app to deliver frictionless Apple Pay + TWINT + PostFinance Pay. The App Store CH storefront ranks by language (DE/FR/IT). The revDSG consent framework is slightly stricter than GDPR — third-party SDKs (Firebase, Mixpanel, Amplitude, Sentry) collecting IP must obtain explicit opt-in. This guide walks international development studios through the CH-specific end-to-end architecture.
| Stack | TWINT SDK | Apple Pay | DE/FR/IT Bundle | Cost |
|---|---|---|---|---|
| Swift + Kotlin (Native) | Official SDK | Native | Localizable.strings | High |
| React Native | react-native-twint (community) | Stripe RN | i18next + JSON | Medium |
| Flutter | flutter_twint package | pay package | ARB files | Medium-Low |
| Kotlin Multiplatform | Manual bridge | Manual | Resource modules | High |
TWINT mobile integration is available at three levels: (1) URL Schema — simple deep-link, payment processed via external browser; (2) Mobile SDK — TWINT's official iOS/Android library with in-app QR and push approval; (3) Aggregator SDK — Datatrans or Wallee mobile SDK exposing TWINT + cards + others in a single UI. Practical guidance: Datatrans for small-mid scale, direct TWINT SDK for large scale.
Apple Pay is supported in Switzerland by UBS, Raiffeisen, ZKB, Cembra Money Bank and most major banks. Integration requires PassKit, an Apple Developer account with Merchant ID and an Apple Pay Certificate. PostFinance Pay lets PostFinance account holders pay direct from their bank wallet — especially trusted by the 50+ demographic where it outranks TWINT. The standard flow: TWINT (young/mid), Apple Pay (Apple ecosystem), PostFinance Pay (PostFinance holders), card fallback.
App Store storefronts are country × language. Switzerland needs three ASO listings (DE, FR, IT) managed independently. Keyword strategy: DE-CH uses "App", "Anwendung", "Programm"; FR-CH "application"; IT-CH "applicazione". Screenshots are localised across the three languages. In-app purchase pricing is set in CHF (Apple Pricing Tier 5 = CHF 4.50, Tier 10 = CHF 9.50, etc.).
revDSG requires explicit consent for processing IP addresses and device identifiers. Third-party SDKs (Firebase Analytics, Crashlytics, Mixpanel, Amplitude, Adjust) must request opt-in via consent banner on first launch. On iOS this combines with ATT (App Tracking Transparency) and a revDSG consent log. Recommended CMPs: Usercentrics App SDK, Cookiebot Mobile, Iubenda Mobile CMP — all support CH locale and the revDSG/GDPR/CCPA matrix.
iOS uses Localizable.strings per locale, Android uses strings.xml. Flutter relies on ARB (Application Resource Bundle), React Native on i18next + JSON. Practical advice: author in DE-CH (ss instead of ß, "Velo", "parkieren"), localise to FR-CH and IT-CH. Number and date formatting: 1'000.50 CHF (apostrophe thousand separator, dot decimal) — a CH-specific format distinct from DE-DE or FR-FR.
Push notifications follow the user's in-app language with device locale as fallback. Sending a French push to a German-speaking Zürich user raises unsubscribe by 15%+. Firebase Cloud Messaging + localised templates + canton-segmented targeting is standard. Push payload conventions: TWINT logo, CHF amount, plain language preferred.
SwissID (SwissSign Group — a joint venture of Die Post, SBB and major Swiss banks) is the de facto digital identity infrastructure in Switzerland. Federal portals (myAccount Federal, AHV, e-Tax), banks and credible e-commerce sites accept SwissID login via OIDC. Integrating SwissID SDK into a mobile app materially reduces friction for high-value flows (CHF 1,000+ payments, contract e-signing, insurance claims). Preparation for the federal E-ID (an eIDAS-equivalent identity, expected 2026-2028) is also recommended in current architectural choices.
If your app handles fintech (investment, crypto, lending, insurance) the FINMA (Eidgenössische Finanzmarktaufsicht) regulatory layer is engaged. Requirements include FinTech licence (for deposit acceptance under CHF 100M), VQF/SRO membership (anti-money-laundering), AML/KYC integration (Onfido, Veriff, Jumio combined with SwissID), and for Zug Crypto Valley exposure a VASP category with additional reporting. Before publishing to App Store CH expect a FINMA pre-clearance plus a revDSG impact assessment, sequenced.
The Zunapro Swiss mobile package: React Native or Flutter skeleton + TWINT SDK + Datatrans aggregator + Apple Pay + PostFinance Pay + Firebase backend + revDSG consent CMP + DE/FR/IT i18n + Galaxus/Digitec product API integration + Sentry CH PoP + localised App Store Connect and Google Play submissions. Typical delivery 10-18 weeks, price band CHF 25,000 - 95,000.