SpoolFlux vs Moonraker Buddy
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
Moonraker Buddy
Monitor and control multiple 3D printers remotely. View live dashboards, webcam streams, and receive smart notifications for print status and errors. Unlock full functionality with an in-app purchase.
- Live printer dashboard
- Webcam streaming
- Smart print notifications
- Multi-printer support
- 3D bed-mesh visualization
- G-code file management
- Macro and device control
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I created Moonraker Buddy after flashing my Flashforge printer with Zmod and finding that i did not like any of the available apps. I have tried to create a clean, easy to use and low cost app that allows you to monitor multiple Moonraker / Klipper printers at the same time. The free version allows you to add a single printer with limited funuctionality. For a small in-app purchase you can unlock the ability to add multiple printers and full functions. KEY FEATURES — Live dashboard with progress, temperatures, fan speeds, and current layer — Webcam streaming with pinch-to-zoom, rotation, and snapshot capture — Live Activity on the lock screen and Dynamic Island showing elapsed and "done by" times — Smart notifications for print complete, errors, pauses, cancellations, filament runout, temperature deviation, and Klipper shutdown — Multi-printer support with groups — monitor a whole farm from one app — Interactive 3D bed-mesh visualisation with drag-to-rotate isometric view — Browse and start G-code files directly from the app — Run macros, control fans, lights, and power devices — One-tap calibration routines — Network discovery — find printers on your WiFi automatically via Bonjour — QR-code scan to import Moonraker API keys — Background polling so you get notified about issues even when the app is closed — Print history with thumbnails and filament usage — Demo mode so you can try everything before connecting a real printer — Spoolman integration — Octoeverywhere integration allowing remote access from anywhere PRIVACY FIRST Printer addresses, API keys, and print history never leave your iPhone unless you explicitly use the in-app feedback form. No analytics, no tracking. Requires a 3D printer with Moonraker reachable on the same WiFi network as your iPhone or iPad.
Screenshots
Verdict
The clearest difference is in-app purchases: SpoolFlux at none against Moonraker Buddy's 1. SpoolFlux also leads on ratings volume (8 vs 2). On price, rating, review sentiment and update cadence 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. Moonraker Buddy 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 Moonraker Buddy. 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, Moonraker Buddy every 2 weeks. The most recent releases landed on October 22, 2026 and October 10, 2026 respectively.
| Parameter | SpoolFlux | Moonraker Buddy |
|---|---|---|
| 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 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.6 | 17.2 — better |
| Further details — not scored | ||
| Size | 7 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Reimar Metzen | PAUL ASTLE |
Customer experience
SpoolFlux
Moonraker Buddy
In-app purchases
SpoolFlux
No in-app purchases
Moonraker Buddy
- Unlock All$9.99
Questions
Is SpoolFlux free?
Is Moonraker Buddy free?
Which has better reviews, SpoolFlux or Moonraker Buddy?
Do SpoolFlux or Moonraker Buddy have ads?
Which is updated more often, SpoolFlux or Moonraker Buddy?
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