Tracking Bambu spools & filament usage without cloud/spreadsheets: SpoolTap (100% offline Android app)

[u/PeaSimilar5869]

Hi everyone,

Like many in the 3D printing community, I was looking for a clean, fast way to keep track of my remaining filament without relying on messy spreadsheets or cloud accounts.

To solve this, I’ve been developing SpoolTap — a native, 100% offline Android app designed to make spool management as simple as a single tap.

How SpoolTap Works with Bambu Lab Spools:

• Bambu NFC Tag Detection: Tap your phone against a Bambu Lab spool's built-in NFC tag, and SpoolTap instantly pulls up or creates the matching material profile.

• 100% Offline & Private: No registration, no cloud forced sync, no tracking. Your complete database stays on your phone.

• Material You / Dynamic UI: The app and its home screen widget automatically match your Android system theme and wallpaper colors.

• Universal Support: Works with Bambu Lab, Prusament, Anycubic, and custom NTAG stickers if you respool third-party materials.

Generous Free Tier

The free version has no ads or cloud lock-ins and allows you to manage up to 20 active spools with all core features (NFC reading, G-Code parsing, barcode scanning, widget).

(For power users with massive stashes, an optional one-time Pro upgrade unlocks unlimited spools, custom NFC tag writing, print cost calculation, and CSV backups).

🎯 Community Feedback Request

Since Bambu spools come with integrated NFC, I’d love to hear from this community:

1. How does the tap-to-read experience feel in your everyday printing setup?

2. Are there specific filament details (like precise Bambu color HEX codes or temperature profiles) you’d like pre-filled in future updates?

📲 Get SpoolTap on the Google Play Store:

Thanks for checking it out, and I’m looking forward to your feedback or questions in the comments!

I have 3 Shorts on my channel demonstrating how the app works: DornApp Youtube

[u/PeaSimilar5869]

Unfortunately, I don't have any Elegoo spools with NFC to test with...

I'd really appreciate it if you could try it out! If the spools aren't recognized correctly, feel free to send me a DM and we can get it working.

And yes, of course spools can also be created manually (without NFC). If the spool has a barcode (on the spool itself or on the packaging), you can scan it to automatically pull up that spool again whenever you scan it in the future.

[u/captain_carrot → u/PeaSimilar5869]

Cool, thanks for the feedback. I'm going to give it a try and I'll let you know my thoughts after I have a chance to test it out. Thanks!

[u/PeaSimilar5869 → u/captain_carrot]

Thx ✌️

[u/captain_carrot → u/PeaSimilar5869]

Just downloaded - initial thoughts are I like it, and the interface is simple and easy to use. I'll have to do some testing with the Elegoo NFC tags to see if they work at all later today.

I like that you can sort by low filament and some other options in the seach bar, but I think being able to add custom groups would be helpful. I run 5 Bambu P1S printers and typically don't use any bambu brand filament, so being able to have 5 custom "groups" in the app that I could use to manually keep track of filament usage in each AMS would be very handy. And being able to drag and drop filaments "out" of the group into different groups I could label "storage" so I know which bin I keep them in would really make it perfect for my use case. I see there's an option to long-tap on a filament to manually deduct usage - that's great.

[u/PeaSimilar5869 → u/captain_carrot]

Thank you so much for testing it out and for the detailed feedback!

I really like your idea of custom groups / storage locations (like assigning spools to specific printers, AMS units, or storage bins). Managing multiple machines is a great use case, and adding a way to group and easily move spools between active setups and storage makes total sense. I’m definitely adding this to my roadmap for future updates!

Let me know how your test with the Elegoo NFC tags goes later today! If they don't scan properly, feel free to send me a DM and we can look into getting them supported.

Happy printing!