Usable weight
FilamentKeeper subtracts the empty-spool tare from the measured gross weight to show the filament you can actually use.
Native application for Mac, 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.
What’s new in version 1.2.0
Welcome to FilamentKeeper for Mac. Manage your 3D printing filament spools, know how much is really left by weighing them, review the journal, print the list and export your data. The app is available in French, English, German, Spanish, Italian, Japanese and Simplified Chinese, and syncs with your iPhone and iPad through iCloud when you turn it on.
What's new in version 1.2.0
The app now speaks seven languages: French, English, German, Spanish, Italian, Japanese and Simplified Chinese. • New app icon • Full light theme support, alongside the dark theme • Complete support for system text sizes (Dynamic Type) • Barcode scanner and color picking from a photo • Print your spool list • Permanently delete a spool, in addition to archiving • Richer backups: brands and vendors are now included • Accessibility fixes and more reliable iCloud sync
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.
Your spools as cards, with remaining percentage, weight and color, then the details of the selected spool.
A spool’s record: identification, initial measured weight, filament purchased and empty spool tare.
Weigh the spool on its holder: the app removes the tare and works out the filament left and used.
To add a spool, scan its code, add a photo or enter the brand and material.
The eyedropper picks the filament’s color from a photo you take or choose in Photos.
03
The same stock,
On iPad
The same stock,
with a sidebar.
Five screens on iPad, in the language of this page.
The sidebar gathers actions, views and statistics; spools sit in a grid you can filter by material.
A spool’s record: identification, initial measured weight, filament purchased and empty spool tare.
Weigh the spool on its holder: the app removes the tare and works out the filament left and used.
To add a spool, scan its code, add a photo or enter the brand and material.
The eyedropper picks the filament’s color from a photo you take or choose in Photos.
04
Your whole stock,
On Mac
Your whole stock,
in one window.
Five Mac screens, in the language of this page.
The sidebar, every spool in a grid and the selected spool’s record, in one window.
Spools grouped by material, ABS, ASA, PETG, with the selected spool’s details.
Pick the spool to weigh: each row shows the remaining level and a button to weigh it.
The filament guides give, material by material, the recommended use and temperature ranges.
The log dates every weighing and every spool added, with the recorded weight.
05
Your inventory,
Siri, Spotlight and Shortcuts
Your inventory,
by voice or in one action.
3 Siri commands and 3 actions in the Shortcuts app, on iPhone, iPad and Mac.
Siri commands
Add Spool
- “Add a spool in FilamentKeeper”
- “New spool in FilamentKeeper”
- “Log a spool in FilamentKeeper”
Add Weighing
- “Add a weighing in FilamentKeeper”
- “Weigh a spool in FilamentKeeper”
- “New weighing in FilamentKeeper”
List Spools
- “List spools in FilamentKeeper”
- “My spools in FilamentKeeper”
- “How many spools in FilamentKeeper”
Actions in the Shortcuts app
- 01Add SpoolRecord a new filament spool
- 02Add WeighingRecord the current weight of a spool
- 03List SpoolsShow the list of spools in stock
06
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 →07
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 →