SpoolFlux vs NFCore
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SpoolFlux
Manage NFC tags for 3D printer filament spools with support for various formats like OpenSpool and TigerTag. Features automatic color detection, temperature presets, and a comprehensive filament library. Integrates with the OpenFilament Database.
- 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
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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
NFCore
This app allows you to read, write, and manage NFC tags on your iPhone. It offers advanced tools for developers and professionals, including tag inspection, memory editing, and batch writing. Organize and export your tag data with ease, all while prioritizing your privacy.
- Read NFC tag details (type, UID, memory)
- Write text, URLs, contacts, WiFi, and more
- Advanced tools: Tag Inspector, Memory Dump, Command Console
- Clone and batch write to multiple tags
- Organize tags with folders and search
- Export tags as JSON or CSV
- Siri Shortcuts for hands-free scanning
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NFCore gives you everything you need to work with NFC tags on your iPhone. SCAN & READ Instantly read any NFC tag — NDEF records, tag type, UID, memory size, and technology details. Tags are auto-saved to your library for easy access later. WRITE Write text, URLs, WiFi credentials, contacts (vCard), phone numbers, email links, and more. Use built-in templates or create your own custom templates for repeat use. PRO TOOLS • Tag Inspector — Deep dive into tag metadata and full technical specs • Memory Dump — View and edit raw tag memory byte-by-byte • Command Console — Send raw ISO 7816, ISO 15693, and NFC-A commands directly • Clone Tag — Copy one tag's data to another • Batch Write — Write the same data to multiple tags in sequence • Tag Lock — Permanently or soft-lock tags to prevent modification • Emergency Info — Write medical and emergency contact info to an NFC tag TAG LIBRARY Every scan is auto-saved. Organize with folders, search by name, type, or UID. Export tags as JSON or CSV. View scan history with timestamps and tag details at a glance. TEMPLATES Start from pre-built templates for WiFi sharing, contact cards, website links, phone calls, SMS messages, email links, and more. Save your own custom templates for repeat use. Perfect for writing the same data to multiple tags quickly. DESIGNED FOR iOS Native app built for iPhone. Supports Dynamic Type for adjustable text sizes, full VoiceOver accessibility, dark mode, and Siri Shortcuts. Localized in 35 languages including Arabic, Chinese, Japanese, Korean, French, German, Spanish, and many more. NFCore Pro is a one-time purchase that unlocks all pro tools, unlimited tag saves, and unlimited templates. No subscriptions. Pay once, own it forever. COMPATIBILITY Works with all NFC tag types supported by iPhone: NDEF (Types 1–5), NTAG, Ultralight, DESFire, ISO 14443, ISO 15693, and FeliCa. Supports iPhone 7 and later running iOS 17.6 or newer. SIRI SHORTCUTS Scan tags hands-free with Siri. Just say "Scan an NFC tag with NFCore" to start a scan instantly. Also supports viewing your saved tag library via Siri. PRIVACY FIRST All tag data stays on your device. No accounts required, no cloud sync, no analytics, no tracking. Your NFC data is yours and never leaves your iPhone. PERFECT FOR • Developers testing and debugging NFC implementations • IT professionals managing access badges and credentials • Home automation enthusiasts programming smart tags and stickers • Small businesses creating tap-to-connect cards and smart packaging • Hobbyists and makers exploring NFC technology • Event organizers creating interactive NFC experiences One app. Every NFC tool you need. EXPORT & SHARE Export saved tags as JSON or CSV. Share data with teammates, back up your library, or transfer tag information between devices. Great for documenting tag configurations and sharing with your team. WRITE VERIFICATION Reads back every tag after writing to confirm data integrity. Toggle this on or off in settings. Never wonder if a write actually worked. TAG COMPATIBILITY GUIDE Built-in reference showing which tag types support which features — memory capacity, lock support, password protection, and supported commands — so you always pick the right tag for the job. WHAT'S INCLUDED FREE • Scan and read any NFC tag • Save up to 3 tags to your library • Write text and URL records • Tag compatibility guide • Full localization in 35 languages • Siri Shortcuts support WHAT PRO UNLOCKS • Unlimited tag saves • All write types (WiFi, vCard, Phone, Email, SMS) • Tag Inspector, Memory Dump, Command Console • Clone, Batch Write, Tag Lock, Emergency Info • Export (JSON/CSV) and unlimited templates Built with care for NFC professionals and enthusiasts alike. We are always working to improve NFCore and add new features based on your feedback. Questions or feedback? Visit nfcore.app/support or email support@nfcore.app
Screenshots
Verdict
The clearest difference is in-app purchases: SpoolFlux at none against NFCore's 1. SpoolFlux also leads on update cadence (weekly vs every 2 months) and ratings volume (8 vs 2). On price, rating, review sentiment and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. NFCore sells 1 one-off in-app purchase. SpoolFlux asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for SpoolFlux against 5.0 for NFCore. Both are backed by a comparable volume of ratings — 8 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
SpoolFlux ships an update weekly, NFCore every 2 months. The most recent releases landed on September 14, 2026 and September 19, 2026 respectively.
| Parameter | SpoolFlux | NFCore |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (8 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 8 — better | 2 |
| Update frequency | Weekly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone | iPhone |
| Requires iOS | 18.6 | 17.6 — better |
| Further details — not scored | ||
| Size | 7 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Reimar Metzen | Echo Persona LLC |
Customer experience
SpoolFlux
NFCore
In-app purchases
SpoolFlux
No in-app purchases
NFCore
- NFCore Pro$6.99









