Now in v1.6.0 — Built for Shops & Makers

Your shop,
finally in sync.

Inventory, work orders, production tracking, and POS integrations — purpose-built for repair shops, retailers, and makers of goods.

Download for Mac
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Mac · iPad · iPhone · 14-day free trial on Monthly · Cancel anytime

StringsTheory Dashboard on Mac StringsTheory Dashboard on iPad
Inventory Management
Work Orders
Kanban Board
Barcode Scanning
Square POS™ Sync
Shopify™ Integration
Bill of Materials
COGS Reports
Production Tracking
Label Designer
Network Printing
Cloud Sync
Multi-User Roles
CSV Import & Export
6 Languages
AI Receipt Import
Workshop Calendar
⌘K Global Search
Lot Expiration
Cycle Counts
iPad Support
Inventory Management
Work Orders
Kanban Board
Barcode Scanning
Square POS™ Sync
Shopify™ Integration
Bill of Materials
COGS Reports
Production Tracking
Label Designer
Network Printing
Cloud Sync
Multi-User Roles
CSV Import & Export
6 Languages
iPad Support

Everything your shop needs, nothing it doesn't.

StringsTheory is designed around the real workflow of a repair shop, retailer, or goods producer — from intake to invoice.

Smart Inventory

Auto-SKU generation, barcode scanning (camera on iPad, USB on Mac), low-stock alerts, bulk edit, wholesale linking, 16+ units of measure, and real-time inventory value. Switch on Detailed Mode for technical inventories — spec fields and substitution rules for capacitors, resistors, tubes, and more.

Work Orders

Eight-status repair workflow (Pending Triage → Pending → Awaiting Parts → In Progress → QC → Ready for Pickup → Completed) with Dashboard callouts, Kanban board and list views, templates with checklists, signature capture, PDF generation, and email notifications.

Customer Intake Kiosk

Turn a shared iPad into a self-service drop-off station. Simple Mode walks walk-ins through You → What's going on? → Details → Sign. One-tap "Hand to Customer" button, PIN exit gate, and auto-print of repair labels on submit.

Production Tracking

Serial number tracking with per-unit statuses, custom fields, production orders, batch management, duplicate detection, and CSV import/export.

Label Design & Printing

Visual drag-and-drop designer, 7 built-in repair label designs (Hangtag, Case Sticker, Customer Receipt, Parts Bag, Status, QC, Pickup), Dymo templates with .dymo import, multi-up sheet rendering for letter/A4 printers, and a dedicated print queue.

BOM (Bill of Materials)

Build assemblies from components with UOM-aware cost calculation. Link BOM to work orders with cost reports on printed documents.

COGS (Cost of Goods Sold) Reports

Revenue, COGS, gross profit, and margin with visual charts. Group by item, category, day, or month. Full transaction ledger with filtering.

Cloud Sync & Multi-Device

Offline-first with automatic sync. Conflict resolution UI, selective sync, pull preview, and a sync log with multi-integration filtering.

Team Management

Bring your whole team on board with seat-based access. Four roles — Owner, Admin, Member, Viewer — magic-link email invites (no shared passwords), Google OAuth, deactivation, and server-pushed announcements.

Detailed Inventory Mode & Substitutes

For shops that need it: per-category spec fields (capacitance, resistance, tolerance, voltage, tube type, …), cross-part substitution rules, and BOMs that automatically use a declared substitute when the primary part is short.

AI-assisted Receipt Import

Drop in any supplier invoice — Mouser, CE Distribution, D'Addario, Tayda, Tube Depot, StewMac, Newark, or an unknown vendor — and Apple Foundation Models extract the line items on-device, match them to your inventory, and queue them for one-tap review. Your invoices never leave your Mac.

6 Languages & CSV

English, Spanish, French, Italian, German, and Japanese. Plus full CSV import/export for inventory, production, customers, and work orders.

Twelve upgrades shipped this release.

Workshop-grade additions that came out of real bench problems — not feature-bingo. Everything below is live in v1.6.0 unless flagged otherwise.

AI-assisted Receipt Import

Apple Foundation Models on-device extract line items from any vendor's invoice — CE Distribution, Mouser, Tayda, D'Addario, Tube Depot, StewMac, Newark, plus unknown vendors via LLM fallback. Nothing leaves the Mac.

Velocity-based Reorder Forecasting Coming soon

Learns your real usage rate from transaction history and projects days-until-empty per item. Replaces static reorder points so you stop ordering caps you don't need and stop running out of the ones you do.

Lot Expiration Tracking

Per-cost-lot expiry dates auto-populated from each item's shelf life. Catches stale electrolytics, old PCB-mount batteries, and aging adhesives before they fail in production — flagged on the Dashboard, not buried in a spreadsheet.

Workshop Calendar

Month-grid view of every Work Order and Production Order on a single canvas, plotted by due date. Tap a day to see what's promised; tap an order to jump straight to it. Google Calendar two-way sync is on the way.

Global ⌘K Search

Spotlight-style cross-entity search across inventory, work orders, customers, BOMs, and production. One keystroke, then type a SKU, customer name, serial, or WO number — go straight to it.

Undo for Destructive Actions

60-second undo window after any delete via an actionable toast. Inventory items, work orders, customers, BOMs — fat-finger a row at 4pm Friday and you can put it back without restoring a backup.

Activity Log

See who did what across the shop. Filter by entity type, user, or date range — every create, update, delete, and status change attributed to the person who made it. Settles arguments without a paper trail.

Stocktake / Cycle-Count Mode

Scan-driven count sessions for end-of-month or surprise audits. Scan a bin, the app tallies expected vs. actual, you confirm or write off discrepancies. Variances post as adjustments so COGS stays honest.

Supplier Directory

Managed vendor list with default payment terms and lead-time defaults — net-30 for CE Distribution, 3-day for Mouser, whatever your reality is. Feeds the velocity forecaster so reorder timing accounts for how long parts actually take to arrive.

Location Bins

Hierarchical Building → Room → Shelf → Bin tracking so the new tech can actually find a 22uF cap without a treasure map. Scan-to-find any item from its barcode, or print bin labels straight from the Label Designer.

WIP Cost Rollup

For half-built production orders, see parts consumed × FIFO cost × percent complete — real work-in-progress valuation, not a guess. Useful when the accountant asks what's sitting on the bench at month-end.

Keyboard Shortcuts

⌘1–⌘9 jump between sidebar destinations. Status row tinting toggle on the Work Orders board so a glance is enough. Refreshed Dashboard icons match the rest of the system.

From drop-off to pick-up, tracked.

Move repairs through eight real statuses — Pending Triage, Pending, Awaiting Parts, In Progress, QC, Ready for Pickup, Completed, Cancelled — across a visual Kanban board, compact list, or detailed list view. Dashboard callouts surface what needs attention.

StringsTheory work order Kanban board on Mac StringsTheory work order Kanban board on iPad
StringsTheory inventory management on Mac StringsTheory inventory management on iPad

Every part. Always accounted for.

From a single component to a serialized finished product — StringsTheory tracks it all with 16+ units of measure, real-time value, and backorder detection.

Integrations

Plays well with your stack.

Two-way sync with the tools you already use. Preview before you pull, push only what you need.

Square POS™
Shopify™
Google Sheets™
Dymo™ Label Templates

See all integrations →

Pricing

Simple pricing,
start free for 14 days.

Monthly covers all the core tools. Annual adds the features growing shops depend on. Privacy Edition is a one-time purchase for shops that need to stay offline.

Monthly
$24.99
per month + local tax · 14-day free trial

All core tools to run your shop. No long-term commitment — cancel anytime.

  • Inventory, work orders & customers
  • BOM (Bill of Materials) & production tracking
  • COGS reports & analytics
  • Square, Shopify & Google Sheets™ sync
  • Label printing & designer
  • 20 work order emails / month
  • Automatic updates
Start 14-day free trial

Card required · No charge until day 15 · Cancel anytime

See all plans (incl. Privacy Edition) →Compare features →

Prices in USD. Local taxes may apply at checkout. Monthly plans can be cancelled anytime. No pro-rated refunds on monthly or annual plans.

Get started today

Built for the bench.
Ready for the business.

See why repair shops, retailers, and makers are switching from spreadsheets and sticky notes. Mac, iPad, and iPhone — all features included.

Download for Mac
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Need a fully offline version? Privacy Edition — no cloud, no tracking, buy once.