FilamentFlow vs SpoolTool
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FilamentFlow
Manage your 3D printing filament inventory with detailed tracking of brand, material, color, and quantity. Monitor usage trends with insightful charts and records. No account is required to get started.
- Filament inventory management
- Track brand, material, color, and quantity
- Quick add/consume functionality
- Filter and sort by various criteria
- Usage records and trend charts
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Know exactly what filament you have before you start the next print. FilamentFlow is a focused inventory manager for makers who want to keep every spool, material and remaining stock organized. BUILD A CLEAR SPOOL INVENTORY • Save the brand, model, material, color, diameter, weight and density for every spool. • Track PLA, PETG, ABS, TPU, engineering materials and more. • Keep counts current as you add filament or use it. FIND THE RIGHT MATERIAL FASTER • Filter your inventory by brand, material or color. • Sort spools by quantity or date. • Open a spool to review its specifications and stock changes. UNDERSTAND YOUR MATERIAL USE • Keep an inventory change history for additions and consumption. • See inventory totals and visual breakdowns by brand and material. • Review usage trends to make better restocking decisions. Your data stays with you and syncs through iCloud across supported devices. Use the Apple Watch companion to check your filament inventory and statistics from your wrist. FilamentFlow is built for hobbyists, print farms and anyone who wants a calmer, more reliable 3D-printing workflow.
SpoolTool
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SpoolTool is a clean and easy-to-use app for tracking your 3D printing filament en accessories. Keep an overview of your filament spools, materials and remaining weight and accessories, so you always know what you have available before starting a print. Key features: • Track filament spools and remaining weight • Support for common materials like PLA, PETG and TPU • Stock inventory • Accessory inventory • Simple and distraction-free interface • iCloud synchronization SpoolTool+ (optional in-app purchase): • Unlock additional filament materials • Unlock all accessories • Add more brands and detailed filament information • Enable cost calculation features • Configure spool stock locations SpoolTool does not require an account and does not collect personal data. App data can be stored securely using iCloud when enabled on your device. Built with focus on simplicity, privacy and ease of use.
Screenshots
Verdict
The clearest difference is in-app purchases: FilamentFlow at none against SpoolTool's 1. FilamentFlow also leads on iOS requirement (17.0 vs 26.0). SpoolTool's advantage is update cadence (weekly vs every 8 months). 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. SpoolTool sells 1 one-off in-app purchase. FilamentFlow asks for nothing beyond the download.
FilamentFlow ships an update every 8 months, SpoolTool weekly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | FilamentFlow | SpoolTool |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 8 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, Vision Pro — better | iPhone, iPad |
| Requires iOS | 17.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 1 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | 文志 胡 | Luc Janssen |
In-app purchases
FilamentFlow
No in-app purchases
SpoolTool
- SpoolTool+$1.99









