# SpoolFlux — OpenSpool NFC Tag Manager

> NFC tag manager for 3D printer filament spools, supporting multiple formats and filament data. (iPhone/iPad app by Reimar Metzen.)

- Source: https://appshunter.io/ios/app/spoolflux/id6757957454 (this page in markdown: same URL + `.md`)
- Developer: [Reimar Metzen](https://appshunter.io/developer/1453724835)
- Category: Utilities, Productivity
- Price: Free
- Rating: 5.00/5 from 3 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.6 · 7 MB
- Languages: English, German
- Released: 2026-02-03
- Data updated: 2026-07-09
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/spoolflux/id6757957454/reviews.md

## What is SpoolFlux?

iOS app for reading and writing NFC tags on 3D printer filament spools. Supports OpenSpool, OpenPrintTag, ACE Pro, and TigerTag.

Features:
- Multiple NFC formats: read and write OpenSpool (ISO 14443), OpenPrintTag (ISO 15693/SLIX2), ACE Pro, TigerTag, and OpenTag3D
- TD1 filament scanner: automatic color detection via USB-MIDI (connect the TD1 device using a Lightning/USB-C adapter)
- Extruder temperature range (150–420 °C, 5 °C steps) with Min/Max slider
- Heated bed temperature range (0–160 °C, optional)
- Temperature presets per material
- 24 predefined colors, add your own
- Multicolor filaments: create multiple colors per filament (e.g., for multicolor spools)
- 42 materials (PLA, PETG, ABS, TPU, PEEK, and more), add your own
- 21 material variants (Matte, Silk, Rainbow, Glow, Carbon, and more), add your own
- 42 predefined filament brands, add your own brands
- Optional filament properties: weight (250 g–10 kg), diameter (1.75 / 2.85 mm), Spoolman-compatible spool ID
- Filament library: save, load, search filaments, and export/import as a .sftemplate file
- OpenFilament Database (OFDB): import filament data from the community database
- JSON preview with syntax highlighting

## Key features

- Read/write multiple NFC tag formats
- Automatic color detection via TD1 device
- Customizable temperature presets
- Extensive filament and material library
- Support for multicolor filaments
- Import from OpenFilament Database
- Save, load, and export filament data

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/spoolflux/id6757957454/reviews.md

### 5/5 — Tag writer for the iOS community

*2026-04-12*

Works flawlessly as mentioned, exactly doing the workflow I planned to add to my 3d printing hobby. I was almost given up until I found SpoolFlux, similar apps or software appear on Android or Chromebook world, but not iOS until now and this  app really save the iOS community. Look forward to getting more features and expanded material database with hex color data.
Well done Reinar, appreciate the work.

**Developer response:** Thanks a lot for the awesome review — really appreciate it! Great to hear that SpoolFlux fits your workflow. More features and a bigger material database (including hex colors) are definitely coming. 🙂

## Frequently asked questions about SpoolFlux

### What NFC tag formats does SpoolFlux support?

SpoolFlux supports OpenSpool (ISO 14443), OpenPrintTag (ISO 15693/SLIX2), ACE Pro, TigerTag, and OpenTag3D formats for reading and writing NFC tags.

### How does SpoolFlux detect filament color?

SpoolFlux features TD1 filament scanner functionality, which automatically detects color via USB-MIDI when the TD1 device is connected using a Lightning/USB-C adapter.

### Can I set custom temperatures for different materials in SpoolFlux?

Yes, SpoolFlux allows you to set temperature presets per material for both the extruder (150–420 °C) and an optional heated bed (0–160 °C).

### Does SpoolFlux allow for managing multicolor filaments?

Yes, SpoolFlux supports multicolor filaments, enabling you to create multiple color entries for a single filament, ideal for spools with varied colors.

### How can I add my own filament data to SpoolFlux?

You can add your own colors, materials, material variants, and filament brands directly within SpoolFlux. It also allows importing data from the community-driven OpenFilament Database (OFDB).

### What are the supported devices for SpoolFlux?

SpoolFlux is currently available for iPhones, as indicated by its supported devices list.

### How often is SpoolFlux updated?

The latest version of SpoolFlux is 2.1.0, and it was last updated on May 24, 2026, suggesting a recent update cycle.

### Does SpoolFlux have ads?

No, SpoolFlux does not contain advertisements, providing an ad-free experience for users.

## Version history (last 5 releases)

### 2.1.0 — 2026-05-24

New: TigerTag support—read and describe TigerTag RFID tags. Stability and compatibility improvements.

### 2.0.2 — 2026-05-10

Minor bug fixes

### 1.8 — 2026-03-19

- Export/import settings
- Multicolored filaments
- Import filaments from the Open Filament Database

### 1.7.1 — 2026-03-12

Bug fix: “Write tag” cannot be canceled

### 1.7 — 2026-03-09

- Import and export filament templates
- Names for colors

## Apps similar to SpoolFlux

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [FilaSpool](https://appshunter.io/ios/app/filaspool/id6762657898) | — | Free | Utilities |
| [Spool Programmer](https://appshunter.io/ios/app/spool-programmer/id6753324939) | 5.0 (3) | Free | Utilities |
| [TigerTag RFID Connect](https://appshunter.io/ios/app/tigertag-rfid-connect/id6745437963) | 5.0 (1) | Free | Utilities |
| [Printer Tools App](https://appshunter.io/ios/app/printer-tools-app/id6745528803) | 2.7 (3) | Free | Utilities |
| [Tag My Spool – NFC Filament](https://appshunter.io/ios/app/tag-my-spool-nfc-filament/id6753719221) | 4.8 (34) | $3.99 | Utilities |
| [FilaMan](https://appshunter.io/ios/app/filaman/id6760033846) | — | Free | Utilities |

## Related topics

[filament rfid](https://appshunter.io/ios/topics/filament-rfid) · [spoolflux](https://appshunter.io/ios/topics/spoolflux) · [3d filament inventory](https://appshunter.io/ios/topics/3d-filament-inventory) · [anycubic kobra s1](https://appshunter.io/ios/topics/anycubic-kobra-s1) · [anycubic kobra](https://appshunter.io/ios/topics/anycubic-kobra)

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-09.*