OpenSpool vs Spoolman GO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OpenSpool
This utility app functions as a universal RFID reader for 3D printers. It supports various RFID systems used for 3D printer filament, including OpenSpool, OpenTag, and Creality. More information on integration is available via a provided GitHub link.
- Universal RFID reader
- Reads OpenSpool RFID systems
- Reads OpenTag RFID systems
- Reads Creality RFID systems
- Supports other RFID systems
- 3D printer filament tracking
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OpenSpool is the universal RFID reader for 3d printers. It reads OpenSpool, OpenTag, Creality and other RFID systems for 3d printer filament. See https://github.com/spuder/openspool for more information on integrating a RFID reader into your 3d printer.
Spoolman GO
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Spoolman GO is the iPhone companion app for your self-hosted Spoolman or FilaMan-compatible server. Manage your filament spools, track inventory, and write NFC tags in the OpenSpool format — right from your iPhone. FEATURES • Dashboard with inventory overview: total weight, material distribution, low-stock warnings, and manufacturer statistics at a glance • Spool list with search and filters by material, manufacturer, location, and stock status, including a remaining-weight status indicator • Detail view with all filament data, settings, and remaining weight • Book filament consumption and log measured remaining weight • Overview for spools, filaments, vendors, and locations — edit all fields • Multi-color display: pie chart (coaxial) or linear gradient (longitudinal) in lists and details • Scan QR codes and open the matching spool directly (`/spool/show/...` and `WEB+SPOOLMAN:S-...`) • Read and write passive NFC tags (OpenSpool 1.0, NDEF MIME application/json; no direct printer or accessory pairing) • Automatically store NFC tag UID on the matching spool (lot_nr) • Auto-detect API: native Spoolman (/api/v1) or FilaMan Spoolman compatibility (/spoolman/api/v1) • Light / Dark / System color scheme • Demo Mode: explore the general app UI without a server using realistic sample data; writing NFC tags requires Live Mode • No account, no cloud service — all your data stays with you • Settings: server connection, appearance and language, low-stock threshold • Improved VoiceOver support with labeled actions, form fields, filters, and purchase states REQUIREMENTS • Self-hosted Spoolman or FilaMan with Spoolman-API Plugin • For NFC: iPhone 7 or newer, iOS 13+, physical device required (not Simulator) • For QR scanning: camera access PRIVACY Spoolman GO collects no user data. All settings are stored locally. The app only communicates with the server you configure. TERMS OF USE Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: OpenSpool at none against Spoolman GO's 1. On price, ads, device support and iOS requirement 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. Spoolman GO sells 1 in-app purchase, starting at $2.99 per month. OpenSpool asks for nothing beyond the download.
| Parameter | OpenSpool | Spoolman GO |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | — | Weekly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 12 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | Spencer Owen | FLORIAN BERTHOLD PFLAUM |
In-app purchases
OpenSpool
No in-app purchases
Spoolman GO
- Spoolman GO Monthly$2.991 Month








