OpenSpool vs SpoolKeep
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.
SpoolKeep
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Simple 3D Printing Filament Spools Management Forget complex spreadsheets and bloated apps! SpoolKeep focuses on what matters to efficiently manage your filament collection. ALSO AVAILABLE ON MAC: • Same Apple ID? Your data syncs automatically via iCloud • Premium already purchased on iPhone? It works on Mac too — no need to buy it twice! • Seamless experience across all your Apple devices FREE VERSION - LIMITED TO 10 SPOOLS: • Perfect for getting started • All features included • Upgrade anytime to unlock unlimited spools PREMIUM UPGRADE - ONE-TIME PURCHASE: • Unlock unlimited spools (no recurring fees) • Single purchase, lifetime access • Shared across your iPhone and Mac • Perfect for serious 3D printing enthusiasts SIMPLE AND EFFECTIVE: • Clean, intuitive interface • Instant familiarity • No unnecessary features • Everything you actually need, nothing more THE ESSENTIALS, WELL DESIGNED: • Catalog your spools (PLA, PETG, ABS, TPU...) • Track your inventory in just a few taps • Find your filaments quickly • Add photos for instant identification • Easily spot started spools PRACTICAL AND FLEXIBLE: • Smart suggestions to avoid repetitive typing • Simple sorting by family, brand, type, or custom • Quick search • Data export/import and report
Screenshots
Verdict
The clearest difference is in-app purchases: OpenSpool at none against SpoolKeep's 1. OpenSpool also leads on iOS requirement (15.1 vs 17). On price, ads and device support 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. SpoolKeep sells 1 one-off in-app purchase. OpenSpool asks for nothing beyond the download.
| Parameter | OpenSpool | SpoolKeep |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | — | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 17 |
| Further details — not scored | ||
| Size | 12 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Spencer Owen | Claude-Alain Muller |
In-app purchases
OpenSpool
No in-app purchases
SpoolKeep
- SpoolKeep Premium$1.99









