Comparison

OpenSpool vs Spoolman GO

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Universal RFID reader
  • Reads OpenSpool RFID systems
  • Reads OpenTag RFID systems
  • Reads Creality RFID systems
  • Supports other RFID systems
  • 3D printer filament tracking
Features
Read full description

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.

About

Spoolman GO

Read full description

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

OpenSpool4 screens
Spoolman GO4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

Scorecard1 real difference · 9 level
OpenSpool versus Spoolman GO: the parameters behind the verdict, then further details
ParameterOpenSpoolSpoolman GO
PriceFreeFree
Rating4.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequency—Weekly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better16.4
Further details — not scored
Size12 MB54 MB
Age rating4+4+
DeveloperSpencer OwenFLORIAN BERTHOLD PFLAUM

In-app purchases

None

OpenSpool

No in-app purchases

1 purchases

Spoolman GO

Subscriptions1
  • Spoolman GO Monthly$2.991 Month

Questions

Is OpenSpool free?
OpenSpool is free to download, with no in-app purchases.
Is Spoolman GO free?
Spoolman GO is free to download, with in-app purchases available.
Do OpenSpool or Spoolman GO have ads?
Neither OpenSpool nor Spoolman GO shows ads.

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