Is Spool Maker safe?

Spool Maker is a free Android app for the NFC spool tags used with UltiMaker 3D printers. UltiMaker filament spools use NFC tags (RFID) so the printer can identify material and spool information. With Spool Maker, you can read the data stored on these tags directly with an NFC-enabled Android device. The app is designed to read both original UltiMaker spool tags and tags written with Spool Maker.…

Developer: joker-mik
Category: Inventory
Earliest archived version: 03 Oct 2026
License: GPL-3.0-or-later (per F-Droid metadata)

02 / Release notes

Release notes from F-Droid

03 Oct 2026

1.2.4

Improved Android 15+ status bar handling, including Motorola devices. Switched app language handling to Android per-app locales, fixed exclusive language selection, simplified the read result page, improved original UltiMaker date display, and cleaned up German translations.

Full notes →

03 / Package identity

Technical fingerprint

Application IDde.spoolmaker.android

Latest APK SHA-2565c521be8ca9ede98e902ce25ae36cb806b7487212b36d11c51b4e19688f416c4

Signing certificate61:28:4F:96:A2:85:D7:AF:75:5F:9A:55:93:B7:86:FD:9B:74:68:6F:A4:61:61:98:EF:CE:E9:03:C5:05:D3:EB

MIN ANDROID23TARGET36ARCHITECTURE

04 / Version archive

Documented releases

1 TOTAL

VersionReleasedAndroidArchitecture

1.2.403 Oct 202623+→

05 / Safety & access

Safety verdict

Authentic — file hash matches the source indexNo ads or tracking flagged by the source

IntegritySHA-256 verified vs source

SourceOpen-source · fdroid

Permissions3 declared · 0 sensitive

Signaturepresent

Anti-featuresNo known anti-features

Sensitive accessNo sensitive permissions

Declared permissions

android.permission.NFC android.permission.VIBRATE de.spoolmaker.android.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

Tracker status: Not assessed by WIKI for Android.

06 / Sources

Evidence ledger

Each entry is a captured public reference backing this record.

RepositorySource package page↗Source codeSource repository↗