Comparison

SpoolFlux vs Spool Tracker

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

Head to head
About

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.

Highlights
  • 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
Read full description

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

About

Spool Tracker

Features
Read full description

Know exactly how much filament you have — and what each print costs. SpoolVault is a filament tracker built for 3D printing, helping you track filament usage, monitor remaining spool weight, calculate print costs, and manage your filament inventory with precision. No more guessing. No more wondering what’s left. No more losing track of how much filament your prints actually use. SpoolVault is designed to make filament tracking fast, accurate, and practical: - Accurate spool weight tracking Know exactly how much filament is left on every spool, using preloaded, brand-specific spool weights for precise remaining-weight calculations. - Print cost tracking Add your filament prices and SpoolVault estimates the material cost of every print from the grams used — so you finally know what each print really costs. - Fast inventory setup Load your collection in minutes from a preloaded catalogue of brands, materials, and colours — Bambu Lab, eSun, Polymaker, Hatchbox, Overture, Inland, Prusament, Sunlu, and more — or add your own. Then organise by printer, AMS / multi-material slot, and storage location, with custom spool weights to match your setup. - Print Projects Group multiple plate prints under a named project to see total filament used, estimated material cost, and a full filament breakdown in one place. Core Features: • Track remaining filament weight per spool • Log filament usage after every print • Calculate filament cost per print • See what’s left before starting your next print • Manage active spools and sealed spools • Organise filament by printer, AMS / multi-material slots, and storage location • Customise brands, colours, and spool weights to match your setup • Search, sort, and filter your filament collection Built for serious makers who want precision, not guesswork. Know your filament. Track your costs. Print with confidence.

Screenshots

SpoolFlux4 screens
Spool Tracker4 screens

Verdict

The call

The clearest difference is in-app purchases: SpoolFlux at none against Spool Tracker's 2. SpoolFlux also leads on update cadence (weekly vs fortnightly). 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. Spool Tracker sells 2 in-app purchases, starting at $4.99 per month. SpoolFlux asks for nothing beyond the download.

UpkeepUpdate frequency

SpoolFlux ships an update weekly, Spool Tracker fortnightly. The most recent releases landed on September 14, 2026 and September 13, 2026 respectively.

Scorecard2 real differences · 8 level
SpoolFlux versus Spool Tracker: the parameters behind the verdict, then further details
ParameterSpoolFluxSpool Tracker
PriceFreeFree
Rating5.0 (8 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings8 — better—
Update frequencyWeekly — betterFortnightly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhoneiPhone, iPad — better
Requires iOS18.618.6
Further details — not scored
Size7 MB23 MB
Age rating4+4+
DeveloperReimar MetzenThree19 Pty Ltd

In-app purchases

None

SpoolFlux

No in-app purchases

2 purchases

Spool Tracker

Subscriptions2
  • SpoolVault Premium$4.991 Month
  • SpoolVault Premium$49.991 Year

Questions

Is SpoolFlux free?
SpoolFlux is free to download, with no in-app purchases.
Is Spool Tracker free?
Spool Tracker is free to download, with in-app purchases available.
Do SpoolFlux or Spool Tracker have ads?
Neither SpoolFlux nor Spool Tracker shows ads.
Which is updated more often, SpoolFlux or Spool Tracker?
SpoolFlux ships an update weekly, and Spool Tracker fortnightly. Most recently, SpoolFlux was updated on September 14, 2026 and Spool Tracker on September 13, 2026.

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