Spoolworth: 3D Print Profit
Cost calculator & profit log
About
This app helps 3D printing side hustles track true costs beyond filament, including electricity, printer wear, and labor. It allows users to import print data from slicers, generate professional quotes with marketplace fees factored in, and log sales to monitor profitability.
What's New in Spoolworth
1.4.1
November 4, 2026
A polish release for the Jobs list. • The Jobs title is back at the top of the list. • Rows now fade softly under the status filter and the tab bar instead of being cut off. • A loss reads with a proper minus sign, such as −$11.15, everywhere an amount is shown.
MoreSubscriptions & In-App Purchases
$4.99
Spoolworth Pro — Lifetime
Unlimited jobs, spools, profit dashboard, CSV. Forever.
Developer apps
FAQ
What is Spoolworth's true cost calculation?
Spoolworth calculates costs beyond just filament, including electricity usage based on printer wattage and local rates, printer wear and tear over its lifespan, a buffer for failed prints, waste from multi-color changes, your labor time, and other consumables like glue and sandpaper.
Can Spoolworth import data from my 3D printer slicer?
Yes, Spoolworth can import G-code or sliced .3mf files directly from popular slicers like Bambu Studio, OrcaSlicer, PrusaSlicer, and Cura. This automatically fills in grams of filament used and print time, even for multi-plate files.
How does Spoolworth help with pricing for online marketplaces?
When selling on platforms like Etsy, eBay, Amazon Handmade, or Shopify, Spoolworth factors in their real fees. It grossed up your price so you keep your desired margin and shows you exactly what to list at and what you'll pocket after fees.
What features are included in Spoolworth Pro?
Spoolworth Pro offers advanced features such as a profit dashboard to analyze revenue, cost, and profit by month, spool inventory tracking to monitor filament levels and receive low-stock warnings, and the ability to quote directly off a specific spool using its real cost per kilo.
How does Spoolworth handle marketplace fees for different platforms?
Spoolworth includes specific calculations for platforms like Etsy, eBay, Amazon Handmade, and Shopify. For Etsy, it notes that flat fees remain editable as they are charged in US dollars globally, ensuring accurate net profit calculations.
Can I import my past sales into Spoolworth?
Yes, you can import your Etsy "Sold Order Items" CSV file directly into Spoolworth. This populates your jobs and dashboard with your real sales history without requiring any account connections.
Is Spoolworth Pro a subscription or a one-time purchase?
Spoolworth Pro is a one-time purchase. You pay once and keep the Pro features forever, offering a perpetual license rather than a recurring subscription.
How often is Spoolworth updated?
The latest version of Spoolworth is 1.4.1, which was last updated on November 4, 2026. This indicates a recent update, suggesting ongoing development and support for the application.
