Comparison

Spool vs Extrudix

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Spool

Manage your 3D printing filament inventory with detailed tracking of materials, costs, and stock levels. Log print details, monitor printer maintenance, and gain insights into your printing habits. Integrates with Bambu Lab printers for automatic data logging.

Highlights
  • Filament spool tracking
  • Cost and weight logging
  • Low-stock warnings
  • Print logging and analysis
  • Bambu Lab printer integration
  • Printer maintenance schedules
  • NFC/QR code spool tagging
Read full description

You have 40 spools. You're about to start a 12-hour print. How much PETG do you actually have? Spool is precision filament inventory for 3D printing. Know what you have, what it costs, and what's running low. Built by a maker tired of guessing. Now on Mac too. TRACK YOUR COLLECTION Fast spool entry with auto-fill from screenshots and product links. Material, brand, colour, weight, cost, storage. Remaining weight tracked to the gram, with low-stock warnings at the levels you set. THE HUB Tap the centre tab and a glass command centre opens over any screen. Add a spool, log a print, scan a tag, open analytics or your printers, all from one place. IMPORT FROM YOUR SLICER Send a sliced .gcode or .3mf to Spool and the print writes itself up from what the file carries: name, print time, filament weight, material and colour. Spool suggests the matching spool and finds the printer in your Workshop. Not every slicer's files can be read yet. THE PRINT TRAY Imported files wait in the tray with Bambu Cloud prints you have not logged yet. Nothing is recorded until you review it. With iCloud on, logging or discarding on one device clears it on the others. PRINT LOG & PRINT STORY Every print holds its full process settings, filled in for you when the print comes from Bambu Cloud. Rate each one and record why it failed. Tap any print and its story opens full screen: costs, telemetry and spool gauges, with previous attempts on Pro. YOUR INVENTORY AS A SPREADSHEET Choose your columns, sort and resize them, group your spools and total up their count and weight. Save the arrangement as a named view: free, with no limit. Exports to CSV. BAMBU LAB INTEGRATION Connect your Bambu Cloud account and your prints fill the tray ready to log. Free for everyone. AMS multi-material prints split per slot, and Spool remembers your last match. CATEGORIES Built-in categories, plus as many of your own as you like. Spool suggests one per print and learns your overrides. Colour, emoji, auto-tagging and per-category insights are Pro. PRINTER MAINTENANCE Schedules drawn from manufacturer documentation for popular Bambu Lab, Prusa, Creality, Anycubic and Elegoo models, with a standard task set for the rest. A live health score per printer: overdue tasks turn red, completing one lifts it. SPOOLTAG Tap your iPhone to an NFC-tagged spool and everything opens instantly. Every label carries a QR code that scans from the camera. Spool reads and writes filament tags. Label Studio designs labels for thermal rolls, sticker sheets or A4, or exports vector PDF. AR Inventory overlays live data above every tagged spool. ANALYTICS & INTELLIGENCE Dashboards for Pulse, Economics, Energy, Material and Hardware. Add your electricity rate once and prints show material and energy cost together. WORKSHOP MANAGEMENT Shelves, dryers, AMS units and boxes, with humidity and seal date tracking. Shopping list and batch management for multi-packs. START FREE 20 spools, 2 printers, 4 storage locations, 30 days of analytics. Bambu Cloud sync, slicer import, the Print Tray, Saved Views, CSV import, SpoolTag, AR Inventory, widgets and Print Story included. GO PRO Unlimited spools, printers and storage. Lifetime analytics, category insights and print lineage. Label Studio with thermal, sticker sheet and vector PDF exports. Batch printing, category customisation, inventory value totals, maintenance notifications and Live Activities. SUBSCRIPTION & PURCHASE INFO Spool offers a one-time Spool Pack, which permanently adds 10 slots to a free account, and two auto-renewing subscriptions, Spool Pro Monthly and Yearly. Payment is charged to your Apple Account at confirmation and renews unless cancelled 24 hours before the period ends. Manage in Account Settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://lance-studio.com/privacy.html

About

Extrudix

Read full description

3D printing doesn't have to mean scattered spreadsheets, guessing what a print actually cost, and finding out your nozzle was overdue for a swap three prints ago. Extrudix brings your whole 3D printing workflow into one native app for iPhone, iPad, and Mac. Track filament, log every print, schedule maintenance, and see real per-print costs, all stored in plain files you own, not someone else's cloud. With Extrudix, you can: • Track filament spools by brand, material, color, and weight • Log every print with duration, result, and filament used • Import sliced .3mf files directly, with plate previews and full slice settings captured automatically • Get itemized cost estimates for electricity, filament, maintenance, and overhead on every print • Schedule maintenance by hours, prints, or days so nothing goes past due • Track nozzles, build plates, and spare parts with usage hours and low-stock alerts • Link print jobs and parts to projects for full cost roll-up • Build custom statistics dashboards for filament use, history, maintenance, and costs • Store everything as plain CSV files in a folder you choose, no account, no login, no lock-in • Sync across devices through your own iCloud or Google Drive folder Whether you're running one printer at home or managing a small print farm, Extrudix keeps everything organized without locking your data behind a subscription or a server you don't control. Your data. Your files. Your control. Extrudix Pro is an auto-renewing monthly subscription. Payment is charged to your Apple ID at purchase, and renews automatically within 24 hours before the end of each period unless canceled first. You can manage or cancel anytime in your Apple ID account settings. Extrudix Plus is a one-time purchase with no recurring charge. All core features work fully without any purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.extrudix.com/privacy

Screenshots

Spool4 screens
Extrudix4 screens

Verdict

The call

The clearest difference is iOS requirement: Extrudix at 18.6 against Spool's 26.1. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Spool sells 3 in-app purchases, starting at $4.99 per month and Extrudix sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 9 level
Spool versus Extrudix: the parameters behind the verdict, then further details
ParameterSpoolExtrudix
PriceFreeFree
Rating5.0 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequencyEvery 2 weeks—
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, MaciPhone, iPad, Mac
Requires iOS26.118.6 — better
Further details — not scored
Size77 MB15 MB
Age rating4+4+
DeveloperLucas MeloRonet Software LLC

In-app purchases

3 purchases

Spool

Subscriptions2
  • Spool Pro Monthly$4.991 Month
  • Spool Pro Yearly$49.991 Year
One-time1
  • +10 Spool Capacity$0.99
2 purchases

Extrudix

Subscriptions1
  • Extrudix Pro$7.991 Month
One-time1
  • Extrudix Plus$0.99

Questions

Is Spool free?
Spool is free to download, with in-app purchases available.
Is Extrudix free?
Extrudix is free to download, with in-app purchases available.
Do Spool or Extrudix have ads?
Neither Spool nor Extrudix shows ads.

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