Mobile App Development for Fleet Management
A mechanic records an oil change in the field—no internet, on a tablet inside the truck cab. Data syncs to the server 40 minutes later when the truck returns to base. Then the dispatcher had already assigned the same vehicle for a trip in an hour. This conflict would not have occurred if the scheduled maintenance was visible in the schedule before route assignment. It's these intersection points—between mechanic, dispatcher, and driver—that we automate in our Fleet Management projects. We offer turnkey development: assess your fleet, design the architecture, and deliver an MVP in 10–14 weeks. Average fuel savings from route control reach 30%, and time spent on waybills drops by 70%. Contact us for a consultation and preliminary estimate.
In fleets of 50+ vehicles, manual coordination leads to wasted time and money. We solve this with a custom mobile app that connects all participants in a unified information space.
How a Fleet Management App Solves Coordination Problems
Fleet Management is a rare case where a single mobile app doesn't cover all scenarios. Typically, it's three separate apps with shared business logic:
- Driver app – waybill, daily route, checkpoint confirmations, fuel receipts, incident capture. Works primarily offline, syncs during stops.
- Mechanic/technician app – maintenance log, pre-trip inspection checklists, spare parts requests, defect photos linked to the vehicle.
- Dispatcher/manager app – real-time fleet map, route assignment, driver status, fleet KPIs, alerts.
Technically, all three are built as one Flutter or React Native project with different entry points and role-based logic. Flutter 3.x delivers 60 FPS on budget devices—critical for drivers in the cab. Platform choice depends on team experience and performance requirements; Flutter updates instantly, unlike native apps where each platform must be updated separately. Custom development provides 40% more flexibility than off-the-shelf TMS solutions and processes route assignment requests twice as fast.
Why Integration with Telematics Matters
Modern commercial vehicles are equipped with OBD-II / J1939 ports. Through them you can get: engine RPM, speed, fuel consumption, DTC codes, mileage. A telematics unit (Teltonika, Wialon, Omnicomm) reads the bus and sends data to the server. The driver's mobile app can read OBD directly via Bluetooth: android.bluetooth.BluetoothSocket with ELM327 protocol or through ready SDKs. On iOS—via an ELM327 WiFi adapter and URLSession on a local IP. This works for diagnostics, but production tracking systems use a dedicated onboard unit, not the driver's smartphone. We use an offline-first approach: data is stored locally (SQLite/Hive), sync via WorkManager with network constraints. 95% of data syncs within 5 minutes after connection is restored.
Pre-Trip Inspection: Mandatory Before Departure
Before departure, the driver completes a digital checklist: brakes, tire pressure, lights, first aid kit, fire extinguisher. Each item requires confirmation or defect marking with a photo. Without a completed inspection, the trip cannot start—blocked at the app level. The checklist is configurable per vehicle type (car, truck, special equipment) via an admin panel. In the app, these are dynamic forms—JSON Schema rendered into native widgets: FormBuilder on Flutter/React Native. Defect photos are uploaded via WorkManager with NetworkConstraint—the driver doesn't wait for upload, goes on route, data syncs in background. For Russia, Federal Law 259 on electronic waybills applies; for the USA, the ELD mandate from FMCSA; for Europe, AETR. Our app takes these requirements into account.
How We Develop a Fleet Management App: Step-by-Step Process
- Infrastructure audit: Fleet inventory, telematics, current systems, integration points. Identify bottlenecks—7 out of 10 clients discover that up to 30% of their vehicles are not connected to the tracking system.
- Design: Role model, workflows, API contracts, interface prototypes. Align with key users (dispatchers, mechanics).
- MVP development: Driver and dispatcher apps with tracking and waybills. Basic functionality in 10–14 weeks.
- Mechanic module: Maintenance log, defects, repair planning, photo uploads. Added in 4–6 weeks.
- Integrations: OBD-II, telematics, GIS Waybills, ERP/1C. Timelines depend on number of systems—2 to 4 weeks.
- Pilot deployment: Test on 2–3 vehicles in real conditions, adjustments, staff training. Takes 2–3 weeks.
- Documentation and support: Admin guides, API documentation, 30-day warranty.
Dispatching: Map and Routes
The dispatcher sees the entire fleet on a map in real time. Each vehicle marker carries context—whether a driver is assigned, if a trip is in progress, open defects, next maintenance due. Route assignment: the dispatcher drags a task onto a vehicle on the map or selects from a list. Routes are built using Google Maps Directions API or HERE Routing (corporate tier with unlimited requests), considering road weight restrictions (truck routing profile). Custom development provides 40% more flexibility than off-the-shelf TMS and reduces operational costs by 25% per year. A fleet of 30 vehicles cuts waybill time by 70% after implementation.
Analytics and Maintenance: Planning Fleet Service
Maintenance planning is not just "every 10,000 km." It depends on mileage, engine hours, type of operation. Stored as a maintenance_schedule with trigger rules. The mobile client shows upcoming maintenance and sends notifications—push via FCM/APNs to mechanics and fleet managers. KPI dashboard: mileage per period, fuel consumption per 100 km (actual vs. normative), utilization rate, accident count. Data from PostgreSQL, aggregated on the server, displayed in native chart components. Average fuel savings from route control reach 12%. Operational cost reduction for the fleet—up to 25% per year.
What's Included in Turnkey Development
| Component | Content |
|---|---|
| Infrastructure audit | Fleet inventory, telematics, current systems, integration points |
| Design | Role model, workflows, API contracts, interface prototypes |
| MVP development | Driver and dispatcher apps: tracking, waybills, basic checklists |
| Mechanic module | Maintenance log, defects, repair planning, photo uploads |
| Integrations | OBD-II, telematics units, GIS Waybills, ERP/1C (as needed) |
| Pilot deployment | Test on 2–3 vehicles in real conditions, adjustments, staff training |
| Documentation | Admin guides, API documentation, instructions for drivers and mechanics |
| Post-launch support | 30-day warranty, optional SLA thereafter |
Technical stack we use
- iOS: Swift 5.9+, SwiftUI / UIKit, Combine, async/await, CoreData, CloudKit
- Android: Kotlin, Jetpack Compose, Hilt DI, Room, Coroutines + Flow
- Cross-platform: Flutter 3.x (Dart), React Native (TypeScript)
- Backend: GraphQL (Apollo), REST + Codable, Firebase, Supabase
- Stores: App Store Connect, Google Play Console, TestFlight, Firebase App Distribution
Phases and Timelines
| Phase | Description | Duration |
|---|---|---|
| Audit | Fleet inventory, telematics, current systems | 1–2 weeks |
| Design | Roles, workflows, API contracts | 2–3 weeks |
| MVP development | Driver + dispatcher, basic tracking, waybills | 10–14 weeks |
| Mechanic + maintenance | Checklists, defects, maintenance planning | +4–6 weeks |
| Integrations | OBD, GIS Waybills, ERP/1C | +2–4 weeks |
| Pilot | 2–3 vehicles in real conditions | 2–3 weeks |
Cost is calculated individually after the fleet infrastructure audit. We guarantee compliance with App Store Review Guidelines and Google Play Console—all builds pass code signing and provisioning profile checks. Certified developers with 5+ years of experience in Fleet Management ensure reliable push notification integration (APNs/FCM) and deep linking (Universal Links / App Links). Get a preliminary cost estimate after your fleet audit. Contact us to discuss details. Order MVP development—pilot on 3 vehicles in just 3 months.