Pricing

Plans built for the bench.

Two ways to subscribe to StringsTheory INV, plus a one-time Privacy Edition for shops that don't want anything on the network. Cancel subscriptions anytime.

Monthly
Everything to run a small shop. Cancel anytime.
$24.99 / mo
Billed monthly. Tax may apply.
14-day free trial
  • ✓ Inventory, work orders, customers, BOM, production, COGS
  • ✓ Customer Intake Kiosk and 8-status repair workflow
  • ✓ Label designer, print queue, 7 built-in repair labels
  • ✓ Square, Shopify, and Google Sheets two-way sync
  • ✓ Mac + iPad native apps
  • ✓ 20 customer emails per month
Start 14-day free trial
Card required · No charge until day 15 · Cancel anytime · Compare plans
Best value
Annual
Everything in Monthly, plus cloud sync, team, web app, and unlimited emails.
$249.99 / yr
$20.83 / mo — save $50 vs Monthly. Tax may apply.
14-day free trial
  • ✓ Everything in the Monthly plan
  • ✓ Cloud sync across Mac and iPad
  • ✓ Multi-user with roles (Admin, Manager, User, Viewer)
  • ✓ Web app companion at app.stringstheoryinv.com
  • ✓ Unlimited customer emails with custom sender domain
  • ✓ Granular backup and restore
Start 14-day free trial
Card required · No charge until day 15 · Cancel anytime · Compare plans
Privacy Edition
All networking code physically removed. No account. No cloud. No tracking.
$399.99 one-time
Buy once, own forever. Includes free updates within v1.x.
No subscription
  • ✓ Same core features as Monthly — inventory, work orders, COGS, labels
  • ✓ Zero network calls after offline license activation
  • ✓ Local label printing — no print server required
  • ✓ 8-status repair workflow and multi-up sheet rendering
  • ✓ No account, no telemetry, no cloud sync
  • ✓ For air-gapped, high-security, and data-sovereign shops
Buy now
License key emailed after checkout. Privacy Edition details
14-day free trial
Full access during the trial. No card charged until day 15. Cancel anytime from the customer portal.
No long-term contract
Subscriptions are month-to-month or annual. Cancel anytime — your data stays exportable.
Your data is yours
CSV export for every entity, anytime. Privacy Edition keeps everything on your device.

Want to see the feature-by-feature breakdown?

Compare Monthly vs Annual →

Common questions

How does the 14-day free trial work?
Start a Monthly or Annual checkout, enter your card, and you get 14 days of full access. Nothing is charged until day 15. Cancel before then and you'll never be billed.
Can I switch between Monthly and Annual?
Yes. Manage your subscription anytime from the customer portal at app.stringstheoryinv.com.
What happens to my data if I cancel?
Cancellation takes effect at the end of the current billing period. Your local data on Mac and iPad stays where it is — the app simply enters read-only mode for sync features. CSV export works at any time.
What's different about Privacy Edition?
Privacy Edition is a separate build with every line of networking code physically removed. It uses an offline cryptographic license — no account, no server check-ins, no telemetry. It's a one-time purchase with no subscription. See what's included →
Do you offer discounts for nonprofits, schools, or repair guilds?
Yes — get in touch at info@stringstheoryinv.com with a quick note about your shop.