For mobile mechanics
Itemize diagnostics, labor, parts, and service notes at the job. Send a PDF estimate before the work, convert to an invoice on completion. Free tier plus a lifetime option ($249.99) available.
Last updated: July 13, 2026
Invoice
Direct answer
Billgami is an auto repair estimate and invoice app for mobile mechanics. It itemizes diagnostics, labor, parts, and service notes; sends PDF estimates from the job site; and converts approved estimates into invoices in one tap. Billgami never processes card payments or holds funds. Customers pay you directly. Billgami is free to start with a lifetime tier ($249.99) available if you want to skip subscriptions entirely. It is not a shop management system.
50-word summary
For solo mobile mechanics: itemize diagnostics + labor + parts, send PDF estimates from the truck, convert to invoices in one tap, track paid manually. Works offline. No payment processing. Free tier plus lifetime option ($249.99).
Itemized diagnostics + labor + parts in every estimate
PDF invoices sent from the job site
Free tier plus lifetime option ($249.99), not subscription-only
Solo mobile mechanics and small 1-2 person mobile operations doing repair work at customer locations.
Auto repair spans from mobile solo work to full-service shops. Billgami sits at the mobile end.
For shop-management software with parts inventory and tech scheduling, Shopmonkey or Mitchell1. For accounting, QuickBooks. Billgami is for solo mobile mechanic paperwork.
Workflow
Save the customer and vehicle, itemize diagnostics + labor + parts, send the PDF estimate, do the work, convert to an invoice, mark paid when payment lands.
Add the customer with contact info and vehicle details (year, make, model, VIN if needed). Repeat customers with multiple vehicles get separate vehicle records under one customer.
Add diagnostic fee, labor at your rate, parts with quantities and cost, and any service notes (recommendations, follow-up work). Save common services in your library for one-tap reuse.
Preview the estimate, share the PDF through email or text before you start the work. Works offline. Customer sees itemized cost and can approve on-site.
When the repair wraps, one tap turns the estimate into the invoice. Adjust actual labor hours or add any parts you had to swap in. Send the invoice PDF the same way.
Customer pays through cash, Zelle, Venmo, check, or a card reader you already have. Billgami never processes payment. You mark the invoice paid when it lands.
Every invoice stays exportable. Repeat customer needs their service history? Export the year. Warranty question on a previous repair? The record is there.
| Feature | Billgami | Shopmonkey | Mitchell1 | QuickBooks |
|---|---|---|---|---|
| Made for solo mobile mechanics | Yes | Fixed shops | Fixed shops | Full accounting |
| PDF estimate + invoice from iPhone | Yes | Yes | Yes | Yes |
| Estimate to invoice in one tap | Yes | Yes (workflow) | Yes (workflow) | Multi-step |
| Itemized diagnostics + labor + parts | Yes | Yes | Yes | Yes |
| Works offline at customer location | Yes | Partial | Partial | No |
| No shop-management overhead (parts inventory, tech scheduling) | Yes | No, shop-central | No, shop-central | Yes |
| No payment holds | Yes | Payment processing | Payment processing | QB Payments |
| No accounting bloat | Yes | Growing suite | Growing suite | No, full accounting |
| Lifetime option available ($249.99, no renewal) | Yes | No | No | No |
Comparison based on public product pages and App Store metadata as of July 2026.
Six things Billgami ships for mobile mechanic workflows. Honest scope: this is not shop management software. It is the estimate and invoice paperwork layer for mobile repair work.
Save customers and vehicles for reuse
Repeat customers with multiple vehicles all get saved. Vehicle year, make, model, and any repair-history notes travel with every future estimate or invoice. No retyping VIN details across the year.
Save diagnostics, labor, and common repair services
Build your service library: diagnostic fee, labor per hour, common repairs (brake pad replacement, oil change, battery swap, alternator replacement). Drop into any estimate with one tap.
Send professional PDF estimates from the truck
Estimate at the customer location, share the PDF before you start work. Customer sees itemized cost and can approve on-site. Works offline; PDF generation does not need cellular.
Convert an approved estimate to an invoice in one tap
When the repair wraps, one tap turns the estimate into the invoice. Adjust actual labor hours or add parts you swapped during the job. Consistent line items from estimate through invoice.
Track paid, unpaid, and partial manually
Mobile mechanics get paid on-site in cash, through card readers, or via Zelle/Venmo. Some jobs are deposit + balance. Billgami tracks status manually so your records reflect what actually happened.
Works offline at the customer location
Customer driveways, parking lots, and repair sites with poor cellular coverage. Billgami builds estimates and generates PDFs offline. Records queue locally and sync when you have signal.
On-scope on parts. Actual labor came in at 2.5 hours because a caliper bolt was seized and needed extra work.
| Line item | Qty | Rate | Total |
|---|---|---|---|
Diagnostic | 1 | $65.00 | $65.00 |
Labor Front brake pad + rotor replacement + seized caliper bolt removal, 2.5 hours actual | 2.5 | $95.00 | $237.50 |
Parts: brake pads (set) | 1 | $85.00 | $85.00 |
Parts: brake rotors (pair) | 1 | $140.00 | $140.00 |
| Subtotal | $527.50 | ||
| Total | $527.50 | ||
Example only. Line item pricing varies by market, job scope, and business. Confirm your own pricing before quoting a client.
A minimal brake job estimate. Diagnostics + labor + parts.
| Line item | Qty | Rate | Total |
|---|---|---|---|
Diagnostic Brake system inspection and diagnosis | 1 | $65.00 | $65.00 |
Labor Front brake pad + rotor replacement, estimated 2 hours | 2 | $95.00 | $190.00 |
Parts: brake pads (set) OEM equivalent, front axle | 1 | $85.00 | $85.00 |
Parts: brake rotors (pair) OEM equivalent, front axle | 1 | $140.00 | $140.00 |
| Subtotal | $480.00 | ||
| Total | $480.00 | ||
Example only. Line item pricing varies by market, job scope, and business. Confirm your own pricing before quoting a client.
Data
The US auto repair industry has a growing mobile-mechanic segment. Public data from BLS and RepairPal gives useful ranges.
| Metric | Value | Source |
|---|---|---|
| US automotive service technicians and mechanics | ~700K individuals across all shop types, 2024 | BLS Occupational Employment and Wage Statistics 2024 |
| US automotive repair nonemployer businesses (solo operators) | ~250K businesses (NAICS 8111), 2022 filings | IRS Nonemployer Statistics 2024 |
| Typical shop labor rate (US national average) | $100-$150 per hour for independent shops; $130-$210 per hour for dealerships, 2024 | RepairPal 2024-2025 |
| Typical mobile mechanic labor rate | Often $75-$120 per hour, lower than fixed shops due to reduced overhead | RepairPal + industry aggregated data 2024 |
| US mobile mechanic services market size | Growing segment; estimates in the low billions annually and rising, 2024 | IBISWorld / Statista 2024 |
Sources
Solo mobile mechanics already carry tool costs, van maintenance, fuel, and insurance. Billgami is one App Store purchase. Own the app, keep your customer and repair records, never pay again for the paperwork layer.
Locked pricing
Free tier + Lifetime option ($249.99)
One purchase covers the full mobile mechanic workflow: unlimited customers and vehicles, unlimited estimates and invoices, PDF export, offline mode, manual status tracking.
See full pricingvs Shopmonkey
Shopmonkey is a full shop-management platform for fixed-location auto shops: parts inventory, tech clock-in, work orders, customer records, payments, and reporting. Excellent for shops with bays and multiple techs. For a solo mobile mechanic in a van, most of Shopmonkey's surface area (parts inventory, tech scheduling) is unused overhead paid for monthly.
When to pick Shopmonkey: You run a fixed-location shop with bays, multiple techs, and parts inventory.
vs Mitchell1
Mitchell1 is a shop-management and service-information platform used by many independent auto shops. Strong for repair information database access alongside shop management. Similar profile to Shopmonkey for solo mobile work: too much software for what is fundamentally mobile repair paperwork.
When to pick Mitchell1: You need integrated repair-information database access alongside shop management for a fixed-location shop.
vs QuickBooks
QuickBooks handles bookkeeping and tax. Auto repair businesses with employees or complex tax needs use it. Not designed for fast mobile estimate creation at a customer driveway. Billgami handles on-site paperwork; QuickBooks (if needed) handles accounting behind it.
When to pick QuickBooks: You have employees, complex accounting, or want bank-feed integration inside one paid subscription.
Methodology
Billgami's mobile mechanic positioning is grounded in three sources. First, BLS data on Automotive Service Technicians (~700K individuals, 2024) and IRS Nonemployer Statistics for auto repair (~250K solo operators). Second, RepairPal average labor rate data showing typical rates of $75-120/hour for mobile mechanics. Third, App Store review analysis of Shopmonkey, Mitchell1, and mobile-mechanic-specific tools, plus Reddit r/MechanicAdvice and r/AskAMechanic discussions on invoice tools. The consistent pattern from solo mobile mechanics: shop management software is expensive overhead for van-based work; a fast on-site PDF estimate and invoice tool is what actually helps. Billgami's six features map directly to that need.
Sources
Simple Invoice App
The core mobile invoice workflow behind the mobile mechanic page.
Estimate & Quote Maker
The estimate half of the mobile mechanic workflow.
For handymen
The general-repair sibling for solo service pros.
For contractors
The larger-project sibling for trades.
Receipt Maker
Once an invoice is paid, generate a receipt-style record.
Pricing
Free, subscriptions, or lifetime ($249.99). Pick what fits.
Itemize diagnostics, labor, and parts at the job. Send PDF estimates from the truck. Convert to invoices in one tap. Get paid the way you already work. Free tier plus a lifetime option ($249.99) if you want to skip renewals.
Last updated: July 13, 2026
