WrenchInvoice

WrenchInvoice is a fast, simple invoicing app built for independent auto mechanics. Create professional invoices by voice or manual entry, then share them as PDFs via text message — all in under a minute.

VOICE-POWERED INVOICING
Just tap record and describe the job. WrenchInvoice uses on-device intelligence to extract the client, vehicle, parts, and labor from your spoken description and builds a complete invoice automatically.

MANUAL ENTRY
Prefer to type? Create invoices with an intuitive editor featuring saved vehicle quick-select, parts and labor line items, and Michigan sales tax calculation on parts.

BUILT FOR MICHIGAN MECHANICS
• Tax on parts only — Michigan sales tax law compliant
• 6% default tax rate, adjustable per invoice
• Professional PDF invoices with your business name and payment details

KEY FEATURES
• Manage clients and their vehicles in one place
• Auto-incrementing invoice numbers
• Job timer with Lock Screen Live Activity — tap to start, hours go straight into the invoice
• "Same as last time" copies parts, labor, and vehicle from a client's previous job
• Text templates for common messages: vehicle ready, parts came in, payment reminder
• Batch payment reminders — notify all clients with unpaid invoices in one tap
• Revenue dashboard with 12-month chart and year-to-date breakdown
• 28-point vehicle inspection checklist — generate and text a PDF report to the client
• Find clients and invoices from Spotlight search
• Share invoices as PDF via Messages, email, or any app
• Accept payments via Cash App and Venmo with QR codes on invoices
• Estimates and Quick Quotes for fast pricing
• Siri and Action Button shortcuts for hands-free use
• Works entirely offline — no account, no subscription, no backend