# Spool: Filament Tracker — 3D Printing Inventory Manager > 3D printing filament inventory and print logging manager. (iPhone/iPad app by Lucas Melo.) - Source: https://appshunter.io/ios/app/spool-filament-tracker/id6756892049 (this page in markdown: same URL + `.md`) - Developer: [Lucas Melo](https://appshunter.io/developer/1863471937) - Category: Productivity, Utilities - Price: Free with in-app purchases - Rating: 5.00/5 from 4 App Store ratings · 2 written reviews indexed - Age rating: 4+ - Requires: iOS 26.1 · 76 MB - Languages: English, French, German, Italian, Polish, Portuguese, Chinese, Spanish, Chinese - Released: 2026-02-09 - Data updated: 2026-07-24 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/spool-filament-tracker/id6756892049/reviews.md ## What is Spool? 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 ## Key features - 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 ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Spool Pro Monthly | $4.99 | per month | | Spool Pro Yearly | $49.99 | per year | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | +10 Spool Capacity | $0.99 | one-time | ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/spool-filament-tracker/id6756892049/reviews.md ### 5/5 — Wow, I wish I could find this earlier *2026-05-14* Such a well-designed, pretty, and versatile app. Still exploring it, will come back to update with more details. **Developer response:** Glad you found Spool! There's plenty more to dig into, and much more to come! ### 5/5 — Best indie app *2026-03-12* I usually don’t write reviews like this, but this app is great. It gives great insights for your printing costs and it syncs well with Bambu cloud. It is awesome, and even though it has a sub, it isn’t required and the base app is still great for anyone who doesn’t have a print farm. 5 stars **Developer response:** Thank you for the review! Really glad the Bambu sync is working well for you, that one took a while to get right. And yeah, the base app should be useful without needing to upgrade. Means a lot coming from someone who doesn't usually leave reviews. ## Frequently asked questions about Spool ### What is Spool? Spool is a productivity app designed for 3D printing enthusiasts to manage their filament inventory, track print costs, and log detailed print data. It offers features like low-stock warnings and integration with Bambu Lab printers. ### How much does Spool cost? Spool is free to start, offering a generous free tier with 20 spools, 2 printers, and 30 days of analytics. Optional 'Spool Pro' subscriptions are available for $4.99/month or $49.99/year for advanced features. ### Does Spool have ads? No, Spool does not contain advertisements. The app is free to use with its core features, with optional paid subscriptions for enhanced functionality. ### What devices does Spool support? Spool is available on iPhone and iPad, allowing users to manage their 3D printing data across Apple devices. ### How often is Spool updated? Spool was last updated on June 11, 2026, with version 1.1.72. The release date was February 9, 2026, indicating active development and regular improvements. ### Can Spool track filament usage for multiple printers? Yes, the free version of Spool allows tracking for up to 2 printers. The 'Spool Pro' subscription likely offers expanded printer support, though specific limits are not detailed in the provided data. ### What kind of data does Spool collect on prints? Spool captures 24 process fields per print, with 20 decoded automatically from Bambu Lab data. This includes nozzle size, layer height, infill, speeds, temperatures, and more, providing comprehensive print telemetry. ### Is Spool suitable for beginners in 3D printing? While Spool offers advanced tracking, its free tier and intuitive interface make it accessible for beginners. Features like automatic data logging and low-stock warnings can help new users manage their projects effectively. ## Version history (last 5 releases) ### 1.1.80 — 2026-07-15 Drying, Dryers & Humidity. Start a drying session from any spool, dryer, or AMS with built-in material presets, and every spool keeps its own drying history that prefills the dried hint when you log a print. Humidity cards track moisture against material-aware targets, with per-chamber cards for dual-chamber dryers and six new dryers in the catalogue. Seal & Protection. Spools now track whether they are sealed or protected from moisture, with a seal tile on the spool detail that opens the full protection view. Your Dashboard, Your Way. Switch your inventory between grid, list, and a new spreadsheet view. Filter by several materials and brands at once from a single Filters menu. Time of Use Energy Rates. On a time-of-use tariff? Spool prices each print by the energy used in each rate window, not one blended rate. Set up your schedule from one of six built-in presets. The accurate cost is free; deeper analytics are Pro. Carbon Footprint. Your carbon footprint now lives in the Analytics Energy tab: total estimated CO2e with a grade, everyday-impact equivalents, a source breakdown, and a six-month trend. Under the Hood. A broad round of clean-up, performance, and stability work across the app. ### 1.1.72 — 2026-06-11 Thanks for using Spool. This update includes bug fixes and reliability improvements to keep everything running smoothly. ### 1.1.71 — 2026-06-01 Thanks for using Spool. This update includes bug fixes and reliability improvements to keep everything running smoothly. ### 1.1.7 — 2026-05-28 Your inventory, on paper. Export a print-ready PDF in seconds with five built-in presets: Simple Checklist for a quick stock count, Full Inventory for a complete export, Storage Audit for sealed-and-dry checks, Purchases & Cost for spend reviews, and Archived Spools for your history. Pick exactly which columns appear, scope it to a brand or material, and the smart-fit advisor warns you before anything overflows the page. Save your layout as a template and it is waiting for you next time. Open it from the Hub, the Spools tab menu, or Settings. Five new languages. Spool now speaks Brazilian Portuguese, Latin American Spanish, German, Simplified Chinese, and Traditional Chinese. Every screen, every analytics card, every insight, fully translated. Colour names too: searching "vermelho", "rojo", "rot", or "red" all find the same spool. Move, swap, and allocate. Long-press any spool in the Workshop or Dashboard to move it or swap it with whatever is already in the target slot. Allocation Management opens your entire storage layout in one full-screen drag-and-drop grid: shelves, dryers, AMS units, and boxes, all at once. Every move includes undo. Smart Import, smarter. Point it at a physical label, a document, a PDF, a photo, a batch of photos, or a pasted link and it fills the form. Photo batch import now lands in a review carousel with select-all and bulk date editing before anything gets saved. URL import is now explicit so nothing runs behind your back, and material variants split more reliably. Print Signals. A new set of insight cards now appears inline in Print History, surfacing timely signals from your recent prints: a spool running hotter than usual, a material that has been performing better lately, a pattern worth looking at. Tap a card to see the prints and spools behind the signal. ### 1.1.6 — 2026-05-06 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. ## Related topics [spool](https://appshunter.io/ios/topics/spool) · [anycubic kobra x](https://appshunter.io/ios/topics/anycubic-kobra-x) · [filament inventory](https://appshunter.io/ios/topics/filament-inventory) · [filament tracker](https://appshunter.io/ios/topics/filament-tracker) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-24.*