Business context
Home-service and field businesses need to create quotes while standing with the customer. Waiting for office hours or a stable connection loses the moment.
Work
ServiceQuote
Offline-focused mobile quoting for field teams — customers, quotes, payments, reminders and PDF export. MVP stage.
Mobile Field QuotingMobileMVP
Overview
- Designed for technicians and sales reps who work on-site with unreliable connectivity.
- Local SQLite keeps critical customer and quote data available offline.
- MVP scope focuses on daily quoting, notes, payments and reminders — not full dispatch or invoicing suites.
- Shared TypeScript patterns allow a future web companion when justified.
Problem
Quotes written on paper or in personal notes never reached a shared customer record. Follow-ups and payment reminders depended on memory, and PDFs required a return to the office.
Intended users
- Field technicians creating on-site quotes
- Mobile sales reps capturing customer details
- Small service business owners reviewing open quotes
- Office staff following up when sync is available
Core capabilities
Offline quoting
Build quotes with line items from local data even when the network is unavailable.
Customer continuity
Keep customer history on device so follow-up starts from the last site visit.
Shareable PDFs
Export a quote PDF for immediate customer sharing without returning to the office.
Main modules
- Customers
- Quotes
- Payments notes
- Reminders
- PDF export
Technology stack
React Native · Expo · TypeScript · SQLite
Architecture summary
- React Native and Expo mobile application
- TypeScript throughout the client
- SQLite local persistence for core entities
- On-device PDF generation for quote sharing
- Sync hooks reserved for a later scoped backend
Security considerations
- Device-local data access through the application layer
- No secrets embedded in the mobile binary
- Validation on quote totals and required fields before save
- Future sync will require authenticated transport when scoped
Interface gallery
Under DevelopmentCurrent phase
ServiceQuote is an EH DESIGN mobile product initiative at MVP stage. Core offline quoting flows are in active development. No app-store ranking or commercial adoption claims are made.
Scope boundaries
- Not a full dispatch, routing or GPS tracking product
- Not a statutory invoicing or accounting suite
- Backend sync is future-scoped, not claimed as complete
- Related product entry may remain hidden in the catalogue
Remaining work
- Polish offline edge cases and conflict handling
- Reminder notification refinements
- Optional sync backend when product scope expands
- Store listing assets when release timing is set
Main workflows
Capture customer
Create or update a customer record on device before or during the site visit.
Build a quote
Add line items, totals and notes, then save the quote locally for later sync or review.
Share PDF
Export the quote as a PDF and share it with the customer while still on site.
Set reminder
Schedule a follow-up or payment reminder so open quotes do not disappear into personal notes.
Technical decisions
Offline first
Field connectivity is unreliable. Local SQLite is the system of record on device for MVP workflows.
Expo for delivery speed
Expo shortens build and release friction while keeping a standard React Native architecture.
Narrow MVP
Quoting, reminders and PDF export beat premature dispatch, GPS and invoicing complexity.
TypeScript shared patterns
Strong typing reduces drift as quote and customer models evolve.
Testing approach
- Unit tests for quote total and line-item calculations
- Component tests for quote and customer forms
- Manual offline scenario passes with airplane mode
- PDF export verification on target devices
Related work
Commercial Desktop ERPWindows desktopRelease candidate
CMDS
Offline-first Windows desktop ERP for trading counters and branches — inventory, sales, purchasing, payments, expenses and reporting. Release Candidate v1.0.0.
- Offline-first Windows counter operations
- Sales, stock and treasury in one local record
- Role-gated discounts and adjustments
Technology: .NET 8 · WPF · SQL Server · EF Core
Gym Management PlatformWebDevelopment / pilot preparation
EH Gym ERP
Web gym and fitness management for memberships, subscriptions, attendance, trainers, classes, POS, finance and reports. Preparing for pilot use.
- Membership and subscription periods
- Attendance and class scheduling
- POS linked to member accounts
Technology: ASP.NET Core 8 · Next.js 15 · SQL Server · EF Core
Let’s Build a Better Business System.
Tell us about your workflow, operational challenge or product idea. We will review the requirements and discuss a practical next step.