Know your real profit on every Etsy and eBay order.
Built by a 3D print seller with 3,000+ sales
SpoolPilot is the profit app you use standing at the printer. It reads your slicer, your Etsy and eBay fees, and your spools.
Free on iPhone · real fees on 10 orders a month
Prefer email?
Occasional product updates, and a person reads every reply.
“It feels very convenient and intuitive, and everything is easy to understand without much explanation.”Angelina · Gumi Print House on Etsy
“My favorite feature of the app is how it predicts what products I need to print next based on my product sales.”Elisabeth G.S · App Store review
Downloaded by makers in 50+ countries
Between prints: today’s take and the month’s profit at a glance.
Point it at the slicer
The camera reads print time and grams off the slicer screen, then prices the print, fees included, and shows what it pays you an hour.
Scan spools by barcode
Sealed spools counted on the shelf, no weighing, with weeks of stock from your real sales pace.
On your phone, not a desk
The sale, the print, the empty spool: they happen away from a computer. A native iPhone app catches them right there, so “I’ll log it later” never turns into never.
“Overall, I really enjoyed testing the app! It feels very convenient and intuitive, and everything is easy to understand without much explanation. I especially liked that you can choose any color and connect your slicer — those features are really useful for 3D printing.”Angelina · Gumi Print House on Etsy
“But my spreadsheet works.”
It does, on the numbers you remember to type. SpoolPilot logs the sale, the real fee, and the grams the moment they happen. Nothing to enter, nothing to reconcile.
“No more running back to my computer to update my spreadsheet.”Rested Tea · App Store review
Every fee Etsy and eBay charged. No estimating.
Read order by order from your own accounts. Etsy’s come from your payment ledger and are reconciled against what Etsy actually deposits. eBay’s come with the Promoted Listings ad fee and the label you bought on eBay. The four Etsy fees, explained.
Want to check the math by hand? One order rebuilt from the payment ledger, line by line.
“I rely on SpoolPilot to keep my Etsy shop profitable and efficient after 5 years and 3,000 sales. If one of its numbers is wrong, I’d be the first shop it affects.”Sean · SpoolPilot founder
Your slicer only counts the plastic.
It has no idea what your electricity and packaging cost, or what Etsy takes. Scan the slicer screen and SpoolPilot adds all three, tells you what to list the print at, and what that pays you for your time.
The busywork it takes off you.
Made to order
No forced stock counts. Low-stock flags appear only where you actually shelve inventory.
Print next
A queue of what’s about to run out, ranked by your real sales pace. Tap a row to log the run.
Bundles
Kits sell from pre-assembled stock first, then assemble from the products inside them, with the cost itemized live.
“My favorite feature of the app is how it predicts what products I need to print next based on my product sales. I run my business off of 3 printers and this function allows me to optimize my usage before purchasing another printer…”Elisabeth G.S · App Store review
See what to print next without opening the app.
Widgets for your Home Screen and Lock Screen, including a Scan button for slicer screens and spools. Part of Pro.
Most tools stop at how much plastic is left.
SpoolPilot counts the money.
| SpoolPilot | Filament trackers | Craftybase / spreadsheets | |
|---|---|---|---|
| Primary focus | 3D-print business profit | Remaining filament weight | General handmade tracking |
| Data entry | Automatic Etsy and eBay order sync | Manual or local print server | Manual spreadsheet typing |
| Form factor | Native iOS, shop-floor mobile | Desktop / local web | Desktop web |
| Seller fees | The real fees each shop charged, itemized per order | Not tracked | Estimated percentages |
| Financials | Full P&L, any month, whole history | None | Basic manual COGS |
Slide your price. See Etsy’s cut.
Etsy’s published US fees, computed live. In the app the fees aren’t computed at all. They’re read from your payment account, order by order, with materials and packaging subtracted too.
Before filament, electricity, and packaging. The app subtracts those too, after the real fees from your ledger. Full calculator →
Where it’s going
Everything above ships today. Here’s what landed recently, and what’s next.
Shipped
Next
Your shop’s numbers never leave your phone.
No account to create. Nothing uploaded. Shop connections are read-only and you approve them on Etsy’s or eBay’s own site, so your password never reaches us, and we never see a single order. Apple’s privacy label on the App Store listing reads Data Not Collected, and Apple holds us to it.
“I love that they never see any of my data. That makes me feel safe syncing orders. In a world full of apps trying to sell data, this makes me feel at ease.”Rested Tea · App Store review
The one thing that does leave: this website counts visits, so we know which pages people read. It never receives anything from the app. The privacy policy spells out all of it, and what SpoolPilot reads from Etsy lists every field the app touches.
Use it for one print or your whole shop.
Skip any of it. Slicer scans work on their own.
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Scan your slicer and get a price
The camera reads the print time and grams, then tells you what to list it at.
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A/B test your slices
Change one setting, scan again, and see which slice earns more.
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Orders sync from Etsy and eBay
Each order comes in with its fees and what you kept.
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Know when to reorder
Spools and parts get an order-by date from your real sales pace.
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Another printer? The numbers decide.
The Printer Permission Slip tells you when your shop has earned one.
Free includes 3 slicer scans and 10 synced orders a month. Reorder dates, parts and the Permission Slip come with Pro. Screens from the demo shop.
What SpoolPilot costs
| Free | $0 |
|---|---|
| Pro monthly First month $7.99 | $17.99 |
| Pro yearly $12.50 a month, billed yearly | $149.99 |
| Pro Lifetime Paid once | $349 |
Free covers spools, the calculator, and real fees on 10 orders a month. Pro brings in every order, with the full profit and loss, profit per print hour, and the widgets.
Plans are bought inside the app. Lifetime is one payment and never renews. Outside the US, the App Store shows your local price. Subscribed at a founding price? You keep it for as long as your subscription stays active.
Download SpoolPilot free →Questions makers ask
What is SpoolPilot, and who is it for?
SpoolPilot is an iPhone app for running a small 3D-printing business: pricing a print from the slicer, reading the fees Etsy or eBay actually charged on each order, profit per order and per product, and filament inventory by barcode. It is built for people who sell what they print, mostly on Etsy and eBay, from one printer up to a small farm. What a 3D printing business needs to track explains the whole picture; the resources section goes deeper on each part.
Does it work without an Etsy or eBay shop?
Yes. Pricing from the slicer, filament inventory, and the product cost model need no shop connection, and sales at markets or in person are logged by hand in two taps and get the same profit treatment. Sales sync and reading real fees need an Etsy or eBay shop.
Does it work with eBay?
Yes. Connect your eBay shop and orders sync with eBay’s fees and the Promoted Listings ad fee, the same way Etsy orders do, and one product can sell on both. Fees are exact for eBay.com sellers. Orders from other eBay sites use eBay’s standard rate for now, and the app labels them as estimated.
Is there an Android or web version?
Not yet. SpoolPilot is a native iPhone app. The pricing calculator on this site is the one part that runs in a browser, free, with no signup. If you want the app on Android, the calculator page has a place to say so.
Is this the same SpoolPilot as spoolpilot.com?
No. SpoolPilot at spoolpilot.app is the iPhone app from Opus Design Group LLC for people who sell 3D prints on Etsy and eBay; spoolpilot.com was a separate web filament tracker that has been discontinued, and the SpoolPilot hardware project on GitHub is unrelated. This app has no web dashboard, no public API, and no hardware.
How does SpoolPilot calculate profit?
It starts with what the buyer actually paid, then subtracts the real costs one by one: the exact fees Etsy or eBay charged on that order (transaction, payment processing, listing, and Offsite Ads or Promoted Listings ad fees, read from the shop’s own ledger, not estimated), then the filament by grams at your price per kilo, the electricity for the print time, printer wear, packaging, and the wage of anyone you pay to help. What’s left is the profit on that order. Your own time is not subtracted: when you price a print, the app shows what the sale pays you an hour for your hands-on minutes instead. For a print you haven’t sold yet the calculator estimates the fees instead, and anything estimated is marked with a “~”.
How is SpoolPilot different from Craftybase or a spreadsheet?
Craftybase is a full manufacturing-inventory suite built for the desktop; a spreadsheet only holds the numbers you remember to type. SpoolPilot is a native iOS app focused on one question, what did this order actually make you, and it logs the sale, the real fee, and the filament grams the moment they happen. Nothing to enter, nothing to reconcile. What software a 3D printing business needs lays out the options side by side.
What does it cost?
SpoolPilot is free to download. Filament inventory, the pricing calculator, and manual tracking are free with no limit, and so are ten synced orders a month from Etsy or eBay, each with its real fees and what you kept. The slicer scan is free for three scans, then a one-time $4.99 unlocks it for good. Pro brings in every order and adds the full profit-and-loss, profit per print hour, weeks-of-stock forecasts, purchased parts, and printer capacity: $17.99 a month (the first month is $7.99), $149.99 a year, or $349 once for Lifetime. A subscription started at a founding price keeps that price for as long as it stays active.
Is my shop and customer data private?
Yes. Your data lives on your iPhone and your own iCloud. Nothing is uploaded to us, there is no account, and the app contains no analytics or tracking SDKs. SpoolPilot connects to Etsy and eBay read-only (it can’t change your shop), and it only ever reads your shop’s numbers, never your buyers’ personal details. This website does count visits, so we know which pages people read; it never receives anything from the app. More in the privacy policy.
Which slicers and platforms does it work with?
The camera reads print time and grams from Bambu Studio, OrcaSlicer, PrusaSlicer, and Cura screens. Sales sync works with Etsy and eBay. SpoolPilot is a native iPhone app (iOS), not a web dashboard.
Why was SpoolPilot created?
Because I got tired of guessing. I’m Sean, and I run Opus Design Company on Etsy, over 3,000 sales of 3D prints. I could never get a straight answer on what an order actually made after Etsy’s fees, filament, and my time. Spreadsheets fell behind, and every other tool wanted a desktop. So I built the one I wanted: real profit, in my pocket, right at the printer. SpoolPilot is published by Opus Design Group LLC.