Custom Task Management Mobile App Development
Imagine: an elevator technician receives a task to replace a cable. They need to photograph the marking, measure the length, and mark completion. In Jira, that's 5 clicks, but on site—gloves and dirt. They need an app with a single screen: task, a "Complete" button, and camera. And it must work without internet because underground parking and construction sites have poor coverage. Any delay disrupts the schedule, so synchronization must happen instantly once connectivity is restored.
We develop such turnkey applications. With 7+ years of experience, we have delivered 50+ projects for construction, service, and logistics companies. We use Swift, Kotlin, Flutter, React Native—selecting the stack for your specific needs. We guarantee stable operation even during connection drops: data is stored locally and synchronized when the network is restored. Notifications are delivered via FCM, Huawei Push Kit, and fallback WebSocket so no event is lost.
How Does a Mobile Task Management App Solve the Offline Problem?
Offline mode is a key requirement for field workers. We use Hive (Flutter) or Room (Android) for local data storage. Synchronization upon network recovery is handled by background workers. Conflicts due to simultaneous changes are resolved using the LWW (Last Writer Wins) algorithm. This ensures no action is lost, even if an employee completes a task in a basement without connectivity.
How Do Push Notifications Ensure Task Control?
Task assigned → executor receives a push with details. Deadline in 2 hours → reminder. Task overdue → notification to the manager. Task completed → notification to the customer or assigner.
This is a basic event-driven workflow, implemented via Firebase Cloud Messaging with priority: high for assignments and deadlines. Deadline reminders are handled by a server-side scheduler (Bull Queue).
Important for B2B applications: an employee may have a locked app store or use a corporate Android (AOSP without Google Services). Then FCM won't work. The solution is to support Huawei Push Kit (hms_push_kit) and fallback to WebSocket when the app is open, or SMS for critical notifications.
What Technical Challenges Do We Overcome?
Main challenges:
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Offline operation: field workers are often in areas without internet. We use Hive (Flutter) or Room (Android) for local storage, synchronization via background workers upon network recovery. Conflicts resolved by LWW (Last Writer Wins). This is critical to avoid losing tasks during simultaneous changes.
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Media confirmations: the executor attaches photos with geotag and timestamp. Compression to 1-2 MB, videos up to 60 seconds with resumable upload. Distance check from the site:
distanceBetween < 500 m. This eliminates falsification. -
Complex task hierarchy: project → phase → task → subtasks. We use event sourcing for auditing and rollback. Every change is saved as an event, providing a complete history.
Thanks to offline mode and push notifications, our app delivers critical tasks 2x faster than competitors that only work online.
How We Work on Your App
- Analytics: Gather requirements, study business processes, identify critical scenarios.
- Design: Architecture (Clean Architecture), UI prototype, data model.
- Implementation: Agile sprints of 2 weeks, code review, unit tests.
- Testing: Load testing, real device testing, beta testing via TestFlight / Firebase App Distribution.
- Deployment: Publish to App Store and Google Play, set up CI/CD.
Architectural pattern: Clean Architecture with three layers (data, domain, presentation). Dependency injection: Hilt (Android) or GetIt (Flutter). Network: Retrofit/Chopper, local storage: Room/Hive.
Technical Specifications
| Parameter | Value |
|---|---|
| Minimum iOS version | 15.0 |
| Minimum Android version | 9.0 (API 28) |
| Tablet support | Adaptive layouts for iPad and Android tablets |
| Offline storage | Up to 10,000 tasks with media files |
| Push notifications | FCM + Huawei Push Kit + fallback WebSocket/SMS |
| Distributed teams | Support for multiple time zones and languages |
Why Choose Us?
Experience: 7+ years in mobile development, 50+ delivered projects. Expertise: we master Swift, Kotlin, Flutter, React Native, and integration with 1C and enterprise systems. Guarantee: we provide a 12-month code warranty, free bug fixes after release. Comparison: integration with 1C via REST API reduces reporting time by 3x compared to manual entry.
Development Timeline
| Scope | Features | Timeline |
|---|---|---|
| MVP | Tasks, statuses, push notifications | 6–8 weeks |
| Standard | + Media confirmations, offline, analytics | 12–16 weeks |
| Enterprise | + 1C integration, corporate SSO, MDM | 20–26 weeks |
Cost is calculated individually after detailed requirements.
After project completion, you receive commented source code, access to App Store Connect and Google Play Console, admin and user manuals, and 3 months of technical support. Free updates for new OS versions are provided for six months. Contact us to discuss your project—we'll estimate timeline and cost for free.