WrenchInvoice
isaac shaffer Business iPhoneiPadiPod touch
WrenchInvoice is a free Business app for iPhone and iPad by isaac shaffer. Rated 2.5/5 from 2 ratings. Requires iOS 26.0. Updated March 11, 2026.
- Rating
- 2.5
- 2 ratings
- Price
- Free
- on the App Store
- Size
- 3 MB
- Age 4+
- Updated
- Mar 11
- 2026 · v1.2
Screenshots
About 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
What’s new
Version 1.2 · Updated March 11, 2026
Job Timer — Tap the clock on any client to start a live timer. When you stop, hours are rounded to the nearest 15 minutes and dropped straight into a new invoice. Timer stays visible on your Lock Screen via Live Activity. Text Templates — Send common messages (vehicle ready, parts came in, payment reminder, estimate follow-up) to clients in one tap with pre-filled SMS. Same as Last Time — One button copies parts, labor, and vehicle from a client's most recent invoice into the current one. Great for repeat jobs like oil changes.Payment Reminders — Batch-remind all clients with unpaid invoices. Tap the bell icon on the main screen to send reminders one by one. Revenue Summary — New chart showing 12 months of collected vs. outstanding revenue, plus year-to-date totals for parts, labor, and tax collected. Vehicle Inspection Checklist — 28-point diagnostic checklist across 7 categories (brakes, tires, fluids, engine, undercarriage, lights, HVAC). Generate a PDF report and text it to the client. Spotlight Search — Find clients and invoices from your home screen. Results update automatically as you create and edit. Bug fix: Quick Quote PDF now generates instantly instead of a 5-second delay.
App privacy
The developer, isaac shaffer, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to WrenchInvoice
Looking for apps like WrenchInvoice? Here are 6 similar apps on the App Store. The highest rated is AutoEstimate: Mechanic Invoice (5.0/5), and all 6 are free to download.
-
MechanicInvoice
-
AutoEstimate: Mechanic Invoice
5.0
-
WrenchStrike: Mechanic Invoice
5.0
-
Simple Invoice: No Ads
-
PopHood — Mobile Mechanic Pro
-
Invoice Maker - Invoice Sonic
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| WrenchInvoice | 2.5 / 5 (2 ratings) | Free | March 11, 2026 | |
| MechanicInvoice | – | Free | Aug 19, 2026 | Compare |
| AutoEstimate: Mechanic Invoice | 5.0 / 5 (2) | Free | Oct 21, 2026 | Compare |
| WrenchStrike: Mechanic Invoice | 5.0 / 5 (1) | Free | Nov 2, 2026 | Compare |
| Simple Invoice: No Ads | – | Free | Jul 7, 2026 | Compare |
| PopHood — Mobile Mechanic Pro | – | Free | Sep 15, 2026 | Compare |
| Invoice Maker - Invoice Sonic | – | Free | Oct 19, 2026 | Compare |
Compare WrenchInvoice with the top alternatives: ratings, updates, ASO score and keyword gaps →