Spool
3D Printing Inventory Manager
Free · In-App Purchases · Designed for iPad. Not verified for macOS.
Your prints now tell a story. Log rebuilt with 20 slicer fields, failure ratings, and categories. Tap any print for the full picture.
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 enthusiasts. Track what you have, what things cost, and what's running low. Built by a maker who got tired of guessing.
TRACK YOUR COLLECTION
Lightning-fast spool entry with auto-fill from screenshots and product URLs. Material, brand, colour, weight, cost, purchase date, storage. Real remaining-weight tracking down to the gram. Low-stock warnings before you find out mid-print.
THE HUB
Tap the centre tab and a glass command centre opens over any screen. Every major action (add spool, log print, scan SpoolTag, analytics, printers) is two taps away.
PRINT LOG & PRINT STORY
Every print captures 24 process fields. 20 decoded automatically from your Bambu data: nozzle, layer height, infill, walls, speeds, temperatures, plate, adhesion, supports. Rate every print with 11 failure types, down to the exact layer. Tap any print and a full-screen story opens: costs, telemetry, spool gauges, and every previous attempt side by side. 19 insight cards surface temperature sweet spots, speed ceilings, drying impact, personal bests, and failure patterns.
BAMBU LAB INTEGRATION
Bambu printers log prints automatically via Bambu Cloud. Free for everyone, no manual entry. AMS multi-material tracked correctly. Smart spool matching learns and auto-selects on future imports.
CATEGORIES
17 built-in, unlimited custom. Spool suggests one for every print and learns every override. Category Insights show success rates, costs, and trends so you see which kinds of prints are worth your filament.
PRINTER MAINTENANCE
Schedules from manufacturer guides for Bambu Lab, Prusa, Creality, Anycubic, Elegoo, Artillery, Flashforge, Sovol, AnkerMake, Qidi Tech, RatRig, and Voron. A live health score per printer. Overdue tasks turn red. Complete one and watch it climb.
SPOOLTAG
Tap your iPhone to an NFC-tagged spool and everything opens instantly. QR codes work from any camera app. Scan, log print, spool pre-selected. Label Studio designs and prints labels to Dymo, Brother, sticker sheets, or A4. AR Inventory overlays live data above every tagged spool, with Searchlight filtering by brand, material, colour, or status.
ANALYTICS & INTELLIGENCE
Five dashboards: Pulse, Economics, Energy, Material, and Hardware. Add your electricity rate once and every print shows its true cost, materials and energy combined, to the penny. Nozzle breakdowns, plate comparisons, quality-weighted grades, and variant-aware palettes for matte and silk filaments.
WORKSHOP MANAGEMENT
Six storage types (shelf, dryer, AMS, box, airtight case, vacuum bag) 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, SpoolTag, AR Inventory, Print Story, Categories, and Printer Maintenance included. No card required. Live counters show where you stand against your limits.
GO PRO, £4.99/month or £49.99/year
Unlimited spools, printers, and storage. Lifetime analytics. CSV import. Label Studio with thermal exports and sticker sheets. Print Queue for batch production. Plus: full cross-print insight tray, category customisation, maintenance notifications, Home Screen and Lock Screen widgets, and Live Activities. The annual plan works out at £4.16/month and pays for itself in the waste it helps you avoid.
SPOOL PACKS
Not ready to subscribe? A one-time Spool Pack permanently adds 10 slots to your free account.
SUBSCRIPTION & PURCHASE INFO
Spool offers a one-time Spool Pack and two auto-renewing subscriptions: Spool Pro Monthly and Yearly. Payment charged to iTunes Account at confirmation. Auto-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
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Version 1.1.6. Your prints now tell a story.
Every print is a data point. This update turns them into something you can learn from.
PRINT LOG, REBUILT
24 process fields per print. 20 of them decoded automatically from your Bambu data: nozzle size, layer height, infill, wall count, print and travel speeds, temperatures, plate type, adhesion, supports, and more. 4 manual fields you control, including whether the spool was dried before printing. Rate every print with 11 failure types, down to the exact layer it went wrong. Batch printing scales weight and cost automatically.
CATEGORIES
17 built-in, unlimited custom. Spool suggests one for every print and learns every time you override it. Category Insights surface success rates, cost breakdowns, and trends per category, so you can see which kinds of prints are actually worth your filament. Pro unlocks custom emoji, colour swatches, keyword auto-tagging, and drag-to-reorder.
PRINT STORY & INSIGHTS
Tap any print and a full-screen story opens: costs, telemetry, spool gauges, weight breakdown, and a timeline of every previous attempt of the same model, side by side. 19 insight types surface what actually matters. Temperature sweet spot, speed ceiling, drying impact, cost per good gram, personal bests, failure patterns. Each one rendered as a visual card inside the story.
PRINTER MAINTENANCE
Model-specific schedules pulled from manufacturer guides for Bambu Lab, Prusa, Creality, Anycubic, Elegoo, Artillery, Flashforge, Sovol, AnkerMake, Qidi Tech, RatRig, and Voron. No generic checklists. A live health score per printer. Overdue tasks turn red. Complete one and watch it climb. Pro adds push notifications before tasks go overdue, and lock-screen completion.
HOME SCREEN WIDGETS
Workshop Health: health score, most urgent task, and streak. Small, medium, large. Lock Screen: health ring and task card, so you never miss a maintenance window. Spool Inventory: filament count, low-stock warnings, and material breakdown at a glance.
SMARTER ANALYTICS
Every field you log feeds straight into analytics. Nozzle-size breakdowns, plate comparisons, quality-weighted material grades, and variant-aware colour palettes, so PLA, PLA Matte, and PLA Silk each get their own identity. Analytics only appear when your data earns them. No empty states, no placeholders.
The developer, Lucas Melo, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Lucas Melo
- Size
- 67.2 MB
- Category
- Productivity
- Compatibility
Requires iOS 26.1 or later.
- iPhone
Requires iOS 26.1 or later. - iPad
Requires iPadOS 26.1 or later. - Mac
Requires macOS 26.1 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- +10 Spool Capacity ₪2.90
- Spool Pro Yearly ₪179.90
- Spool Pro Monthly ₪17.90
- Copyright
- © 2026 Lance Studio
