Custom Fleet Management App Development

Telematics is the data; Tepia builds the workflow

Lists of the best fleet management software are written by fleet software vendors, and they are honest about one thing: the hardware and the telematics feed are the hard part, and the vendors do it well.

What those platforms do not do well is your workflow. A school district, a utility, a rental company, a food distributor and a landscaping firm all buy the same telematics and then run entirely different operations on top.

It pairs with the logistics and transportation app development page for operations that move freight.

When a custom fleet app beats a SaaS platform

Tepia tells many fleets to stay on their SaaS platform. The table below is the checklist Tepia uses in the first conversation to decide whether a custom build is justified.

If you land in the bottom six rows, Tepia typically recommends keeping the telematics subscription and building the workflow layer on top of it. You keep the hardware and the data feed and replace only the part that does not fit.

Modules Tepia builds in a fleet management app

Tepia scopes fleet apps from a menu of modules, and most clients start with three or four.

• Asset registry. Every vehicle and piece of equipment with VIN, plate, telematics device ID, ownership or lease terms, assigned location and custom fields per asset type.
• Maintenance scheduling. Preventive maintenance by mileage, engine hours or calendar, pulled from telematics odometer and hour readings. Fault codes from the feed create inspection or repair tasks automatically, with parts and labor recorded against the asset.
• Inspections. Driver vehicle inspection reports on the mobile app, with photo capture for defects, a defect to repair flow, and a record for each inspection. Tepia builds the forms as data your fleet manager edits.
• Driver scoring. A score built from the events your telematics reports (speeding, harsh braking, idling, seat belt) weighted by your rules, shown to drivers in the app with trend and rank, and exported to payroll for incentives.
• Assignment and utilization. Which asset is with which crew or job today, utilization by asset, and a checkout flow for pool vehicles.

The mobile driver app is built for iOS and Android, works offline first for inspections in yards without signal, and uses push notifications for assignment and defect updates.

How telematics integration works

Tepia connects to telematics platforms through their APIs rather than by reading hardware directly. Geotab exposes vehicle, trip, fault and exception data through its SDK and API; Samsara provides REST APIs and webhooks for vehicle stats, locations, safety events and hours of service. Tepia builds an adapter per provider that normalizes the data into one model, so the fleet app does not care which box is in the truck.

Polling intervals and webhook use are tuned to your needs. Maintenance data (odometer, engine hours, fault codes) is pulled on a schedule, while safety events and location arrive through webhooks where the provider supports them. Tepia stores history in PostgreSQL so reports do not depend on the vendor’s retention limits, and the raw feed is kept for audit.

If your fleet is on two providers after an acquisition, or you plan to switch vendors at contract renewal, the adapter pattern is what makes that a small project instead of a migration. Tepia’s API development and integration page describes the approach.

How Tepia approaches custom fleet management app development

Tepia runs fleet projects through its six phase process. Discovery is where the telematics feed is audited and the workflow is mapped.

1. Discovery (typically 1 to 3 months). Tepia reviews your telematics account and API access, interviews fleet managers, mechanics, dispatchers and drivers, and audits integrations with your ERP, work order or fuel card systems. Deliverables: Investigation Summary, Interview Summary and User Stories, including your scoring and maintenance rules written down.
2. Design. Design questionnaire, moodboards and a style guide, then detailed wireframes for the fleet portal, the inspection flow and the driver score screen, with sample designs reviewed by drivers and mechanics.
3. Development and Testing (typically 2 to 6 months). Alpha and Beta schedules with functional, user acceptance and nonfunctional test plans, including integration tests against the telematics sandbox and a pilot on a subset of vehicles.
4. Training. Hands on sessions for fleet staff and driver leads built on user story scenarios such as a failed inspection and a fault code that becomes a repair.
5. Launch (about 1 month). Migration of the asset list and maintenance history, transition from spreadsheets or the old platform by location, and Tepia support reps during rollout.

The process is documented at tepia.co/process. Tepia’s Maximum Controls project (iOS, Android and an admin portal for gate control devices) shows the same pattern of an app built over connected hardware; see our work.

Frequently asked questions