# Mobile app development in Colombia | Slash Digital Lab Source: https://slash-digital.io/en/mobile-applications/ Digital product & software Production apps for iOS and Android: native or cross-platform, embedded AI, store publishing and operation after launch. - Stack Native · Flutter - Stores App Store · Google Play - Cases Tech Week · Mazette Start a project See real work In short Slash Digital Lab develops iOS and Android apps from Bogotá, and a production app is more than a companion: onboarding, notifications, offline, analytics and a release cycle. We publish to the App Store and Google Play and keep the app alive with your team. Evidence: the official app of Colombia Tech Fest and the full Flutter app for Réseau Mazette (iOS and Android). For AI on the phone itself: small models on device. The rest of the product: digital products and web applications. What we deliver ## What a Slash app includes We choose the stack by the case: Flutter when it sustains the product, native when the device demands it. 01 ### Cross-platform Flutter One codebase, two stores; native-grade performance for community products. 02 ### Native when it matters Native iOS/Android for advanced capabilities: camera, sensors, payments. 03 ### Embedded AI Copilots, recommendation and moderation inside the app. 04 ### Stores & releases Publishing, versioning, review cycles and an update plan. How we work ## From idea to the stores - ### Discovery Users, use cases and store constraints, defined in writing. - ### Prototype The flow tested with real users before building everything. - ### Build & beta Sprints with TestFlight and Play Console internal testing. - ### Launch Publication, analytics, notifications and a release plan. Scope and deliverables ## What the project delivers - **Platforms:** iOS · Android · web app. - **Stack:** Flutter or native, by case. - **AI:** Copilots and embedded models. - **Offline:** Maps and content without network. - **Stores:** Publishing, listings and releases. - **Analytics:** Events and KPIs from day one. Proof in production ## Apps in the stores Read more Steel Bastion · Tower defense ### A military tower defense on six fronts Flutter game for Android and iOS: 60 missions against armoured columns, 10 weapons, a daily operation and survival fronts, with no ads. Learn more → Read more Réseau Mazette · Flutter app ### Full Flutter app for iOS and Android Réseau Mazette connects French-speaking professionals and entrepreneurs in Spain. We shipped a full native Flutter app for iOS and Android: directory, events, messaging, memberships and AI copilot Mia, plus the branded web experience. Learn more → Read more Nekonap · Logic puzzle ### A daily puzzle about sleeping cats Flutter logic puzzle for Android and iOS: one cat per row, column and patch, the same daily puzzle for everyone and 36 cats, with no ads. Learn more → Read more Seismic Guard · Earthquake alerts ### Earthquake warnings that reach iPhones too Flutter app for Android and iPhone: relays Android earthquake warnings and adds EMSC, SGC and USGS alerts, with native Kotlin and Swift and a Supabase backend. Learn more → Frequently asked questions ## The questions we hear often **Native or cross-platform?** Mostly Flutter, which compiles native iOS and Android apps from a single codebase; fully native development when the case needs specific capabilities. **Do you publish to the stores for us?** Yes: listings, screenshots and the review process included. **PWA instead of an app?** When the case allows it (see Peoplesnap); a web app skips stores entirely. **Post-launch support?** Yes: two months of support included after delivery; after that, releases, hotfixes and a priority-driven roadmap on the support plan you choose. **Notifications and chat?** Yes: segmented push and messaging, as in the Tech Week app. **How long does store publishing take?** Leave weeks, not days. Apple says it reviews most submissions in under 48 hours, but on Google Play a personal developer account created after November 13, 2023 first needs a closed test with at least 12 testers for at least 14 days. **How do users get in, and what happens to their data?** Through controlled access. In the Colombia Tech Fest app, every account starts from an invitation code and the guest accepts the privacy policy; in Réseau Mazette, members sign in with their website credentials. If the app lets people create accounts, it must let them delete them in the app: Apple and Google Play require it. **How long does it take to build an app?** It starts with a two-week discovery that sets the scope; then we work in two-week sprints with a demo, so you see the app grow on your phone. Add store review time and, after delivery, two months of included support. As a reference, we built the Colombia Tech Week iOS and Android app, used by 14,000 people, in 2 months. **How much does an app cost?** We quote every project precisely and to measure, after discovery. As a reference, a native iOS and Android app starts at around €10,000; the scope sets the final price.