This app transforms your iPhone into an NFC reader and writer for 3D printing filament spools. It instantly displays filament details and allows you to read, write, and edit tag information. Optional integrations sync with inventory management systems and send spool data directly to your 3D printer.
1.2.1
October 21, 2026
- Writer forms now show each field's name next to its value. - I added 3DFuel, Polar Filament and Push Plastics to the OpenTag3D brand list. - OpenTag3D tags at version 1.003 and 2.003 can be rewritten now. - Rewriting a tag no longer erases fields the form doesn't show. - Values from a previous tag or spool no longer carry over into the next write.
MoreSpoolSense is a utility app that turns your iPhone into an NFC reader and writer specifically for 3D printing filament spools. It allows you to quickly read and write information to NFC tags attached to your filament.
No, SpoolSense is completely ad-free. The developer prioritizes user privacy and experience, ensuring no advertisements interfere with its functionality.
SpoolSense requires an iPhone 7 or later for its NFC scanning and writing capabilities. The app is designed for iOS devices.
Yes, SpoolSense is available for free. There are no in-app purchases or subscriptions required to use its core NFC reading and writing features.
The latest version, 1.1.1, was released on August 21, 2026, indicating recent development activity. Users can expect ongoing support and potential updates.
Optional features include syncing with a self-hosted Spoolman server for inventory management and sending spool data directly to compatible 3D printers like Snapmaker U1 and Klipper-based systems.
SpoolSense has an age rating of 4+, making it suitable for a wide range of users. This indicates no mature content is present in the application.
SpoolSense is designed with a strong focus on privacy. It collects no data, has no analytics, no tracking, no accounts, and never sends your data anywhere, ensuring everything lives on your devices or servers.
