Tailored GPS Tracking Solution for Saudi Market

am looking for an experienced development team (or individual) to build a complete GPS tracking solution for the Saudi Arabian market.
The solution will be used with Teltonika GPS devices, and it must include:

1. Mobile App (Android & iOS)

Features required:

Real-time vehicle tracking

Live map with continuous location updates

Trip history & route playback

Alerts & notifications (speed, geofence, idle, offline device, etc.)

Driver/vehicle profile pages

Multi-user login roles (Admin, Client, Driver)

Dual language: English + Arabic

Clean, modern UI suitable for fleet businesses in Saudi Arabia

2. Web Dashboard (Admin Panel)

Features required:

Real-time fleet tracking

Device management (IMEI-based)

Trip history and Analytics reports

Create users & set permissions

Geofence creation + alert rules

SIM card/device activation (optional)

Subscription/Billing module for clients

API support for future integrations

3. Backend Requirements

Cloud-hosted backend (scalable to thousands of devices)

Must support Teltonika protocols

Secure database

Reliable notification system

Admin controls for billing, user access & usage reports

4. What I Need in Your Proposal

Please include the following in your quotation:

Total project cost (breakdown for app + web + backend)

Estimated timeline

Technology stack you will use

Ongoing support & maintenance charges

Examples of previous similar projects (if any)

Additional options (white label, branding, advanced analytics, etc.)

About the Project Goal

I am building a long-term GPS tracking business in Saudi Arabia with plans to scale. The software must be reliable, professional, and future-proof.