SpoolStack
Matthew Howell Utilities iPhoneiPadiPod touch
SpoolStack is a free Utilities app for iPhone and iPad by Matthew Howell. Requires iOS 17.0. Updated May 26, 2026.
- Price
- Free
- on the App Store
- Size
- 13 MB
- Age 4+
- Updated
- May 26
- 2026 · v1.3
Screenshots
About SpoolStack
Never run out of filament mid-print again. SpoolStack is the ultimate inventory manager for 3D printing enthusiasts. Whether you have five spools or five hundred, SpoolStack removes the guesswork from your workshop so you can focus on creating, not stocktaking. EFFORTLESS INVENTORY MANAGEMENT Quick Add — add new spools in seconds with brand and type presets Visual Swatches — colour-coded swatches and Favourites for your go-to materials Smart Thresholds — custom Red and Amber alerts so you know exactly when to reorder On Order Tracking — mark spools as on order with a smart reminder to confirm your order was placed Settings & Support — rate the app, restore purchases, and get in touch directly from within the app SYNCS ACROSS ALL YOUR DEVICES — FREE Your inventory stays up to date everywhere. Add a spool on your iPhone, see it instantly on your iPad or any other iCloud-connected device. Cloud sync is included for every SpoolStack user, no subscription required. REORDER IN SECONDS Auto-Link — SpoolStack automatically matches your filament to reorder links One-Tap Shopping — buy the exact brand and colour you need without searching order histories Broad Support — optimised for Elegoo, Bambu Lab, eSUN, Polymaker, Sunlu, and more GO HANDS-FREE WITH PRO NFC Tagging — tap your phone to an NFC-tagged spool to subtract stock instantly QR Workflow — generate custom labels and scan to update inventory in a flash Unlimited Inventory — remove the 15-spool limit and track your entire collection TAKE CONTROL OF YOUR FILAMENT SpoolStack is free to use for up to 15 spools with cloud sync included. Join the pro makers using SpoolStack Pro to streamline their workflow with unlimited spools and hardware tagging. Privacy Policy: http://bit.ly/3PcUgFE Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
What’s new
Version 1.3 · Updated May 26, 2026
A big quality of life update packed with polish and new features. - Settings screen — rate the app, send feedback, restore purchases and manage your account all in one place - Spool notes — add freeform notes to any spool in your inventory - Smarter colours — expanded colour detection with pastels, light shades and more accurate swatches across the board - Haptic feedback — satisfying taps when adjusting stock, with stronger feedback when hitting low stock or zero - On Order auto-clear — adding stock to an on-order spool automatically marks it as received - Free tier expanded — track up to 15 spools for free, up from 10 - Low stock alert improvements — Mark as On Order now always appears even without a reorder link set - Polish and bug fixes throughout
App privacy
The developer, Matthew Howell, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to SpoolStack
Looking for apps like SpoolStack? Here are 6 similar apps on the App Store. The highest rated is Spool Master (5.0/5), and all 6 are free to download.
-
Filament Depot: 3D Spool Log
-
SpoolTags
-
KatMon
-
My Filaments
-
Spool Master
5.0
-
TagWriter4CFS Mobile
5.0
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| SpoolStack | – | Free | May 26, 2026 | |
| Filament Depot: 3D Spool Log | – | Free | May 20, 2026 | Compare |
| SpoolTags | – | Free | Feb 3, 2026 | Compare |
| KatMon | – | Free | Aug 13, 2026 | Compare |
| My Filaments | – | Free | Oct 19, 2026 | Compare |
| Spool Master | 5.0 / 5 (1) | Free | Oct 6, 2026 | Compare |
| TagWriter4CFS Mobile | 5.0 / 5 (3) | Free | Oct 14, 2026 | Compare |
Compare SpoolStack with the top alternatives: ratings, updates, ASO score and keyword gaps →