Usable weight
FilamentKeeper subtracts the empty-spool tare from the measured gross weight to show the filament you can actually use.
Native application for iPhone and iPad
FilamentKeeper
Your spools.
The right weight, right when you need it.
Inventory your 3D-printing filament, record every weighing and know the usable quantity after the empty-spool tare is removed.
01
Features
Accurate inventory, without mental arithmetic.
Guided weighings
Weigh the spool and its support after a print. History and consumption update automatically.
Distinct spools
A unique identifier distinguishes spools with the same brand, material and color.
Inventory and journal
Filter active or archived spools and review every addition, weighing and removal chronologically.
Photos and settings
Add a photo from the camera or library and retain printing temperatures and speeds.
Export and backup
Export inventory as CSV, or back up and restore all data from Settings.
02Your entire filament inventory,
Preview
Your entire filament inventory,
at a glance.
Views designed to move quickly from stock to weighing and spool details.
03Your inventory,
Siri, Spotlight and Shortcuts
Your inventory,
by voice or in one action.
FilamentKeeper actions are available through Siri, Spotlight search and Apple’s Shortcuts app.
Add a spool
“Siri, add a spool in FilamentKeeper.”
Record a weighing
“Siri, add a weighing in FilamentKeeper.”
Check inventory
“Siri, list the spools in FilamentKeeper.”
- 01Add SpoolCaptures brand, spool material, color, initial measured weight and purchased filament weight.
- 02Add WeighingRecords a spool’s gross weight, with an optional quality rating and comment.
- 03List SpoolsReturns active, archived or all spools according to the selected filter.
04
Private data
Your data stays yours.
FilamentKeeper uses no trackers, advertising, analytics services or third-party frameworks. The application is built exclusively with Apple frameworks.
Local by default
Spools, weighings, photos and preferences reside inside the app on your device.
Optional CloudKit
Sync between devices using the same Apple Account is off by default and enabled in Settings.
Your backups
Export CSV or a complete backup, then import your data when needed.
FilamentKeeper does not sell or share your data. Deleting the app erases local data that has not been exported or synchronized. Camera and photo-library access is optional and used only to attach an image to a spool.
privacy@rapinology.com →05
Support
Need help?
Include your iPhone or iPad model, iOS or iPadOS version, and FilamentKeeper version. Do not send a backup containing your data unless requested.
support@rapinology.com →