Comparison

Trainventory vs Filament

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

Head to head
About

Trainventory

Organize, track the value of, and create wishlists for your model train collection. Get reminders for new releases and manage your hobby efficiently.

Highlights
  • Organize train collection
  • Track costs and value
  • Create wishlists
  • Wishlist reminders
  • User-friendly design
Read full description

Trainventory: Organize, Track, and Dream Big with Your Model Train Collection Whether you're a lifelong model train enthusiast or just starting your collection, Trainventory is the essential app to keep everything on track. Effortlessly organize your trains, track their value, and build your dream wishlist – all in one place. Key Features: - Organize Your Collection: Easily catalog your locomotives, carriages, and accessories with detailed entries for model type, brand, and condition. - Track Costs and Value: Keep an eye on how much you’ve invested and monitor the value of your collection over time. - Create Your Wishlist: Never forget that must-have model again – build a wishlist of trains you’re dreaming of adding to your collection. - Get Reminded: Never miss out on a presale or release date with wish list reminders Why Trainventory? • User-friendly design built specifically for model train enthusiasts. • Keep your collection organized anytime, anywhere. • Perfect for collectors of all experience levels. All aboard for the most efficient way to manage your model train hobby. Download Trainventory today and let your collection shine! Start tracking, start organizing, and keep your model train passion on the right track with Trainventory.

About

Filament

Features
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Take control of your 3D printer filament collection. Filament Tracker is a native app for iPhone, iPad, and Mac that gives every spool a unique ID, a home, and a complete history — from purchase to retirement. Manage your inventory seamlessly on your mobile devices, leveraging quick QR scanning on both iPhone and iPad, alongside powerful hardware NFC tag scanning on your iPhone. — KNOW WHAT YOU HAVE — Browse your entire collection filtered by state, brand, type, color family, or location. Sort by grams remaining to spot low spools at a glance. Every spool tracks its weight, state (New → In Use → Low → Empty → Retired), event history, and photos. — SMART INTAKE & AUTO-FILL — Skip tedious data entry when adding new inventory. Paste text straight from a product page or receipt—or on iPhone and iPad, use your device camera to scan text directly off physical box and bag labels. For compatible devices, on-device Apple Intelligence automatically parses the text to extract the spool's brand, material, color, and net weight instantly. — SCAN TO FIND. SCAN TO MOVE. — Print a QR code for any spool or location, or use your iPhone to write and scan custom NFC tags right at your workbench. A quick tap of an NFC tag with your iPhone, or a swift camera scan of a QR code on either iPhone or iPad, instantly identifies exactly what's loaded and where it is. Move a spool to a new location in two quick scans. — LOCATIONS THAT FIT YOUR SETUP — Organize your collection by dry box, AMS unit, shelf, printer, or any location you define. Locations marked as Connected to Printer automatically count loaded spools as In Use. — TRACK EVERY GRAM — Log print sessions to keep grams-remaining accurate. Attach photos from your camera, photo library, or Files to any spool or filament record. Track purchase price and source URL per spool, with per-spool currency overrides for international purchases. — BUILT-IN FILAMENT REFERENCE — Look up print temperatures, drying recommendations, density, and resistance ratings for ~30 common filament types — from PLA and PETG to specialty materials like PA6-CF, BVOH, and ASA. Tap any reference entry to instantly filter your spools by that type. — ICLOUD SYNC — Your inventory syncs silently across all your devices via CloudKit. Works fully offline; changes sync automatically when connectivity returns. Full sync diagnostics and a local cache reset are available right in Settings. — BACKUP & RESTORE — Export a complete snapshot — spools, filament, locations, event history, photos, and reference data. Restore at any time using a safe path that never risks accidental data loss to iCloud. — CSV EXPORT & IMPORT — Export your full inventory as a 28-column CSV for Numbers, Excel, or any spreadsheet app. Import it back to bulk-update brand, type, color, location, purchase info, and more — matched by Spool ID, with missing reference entries created automatically. — SEAMLESS MAC COMPANION — The app runs natively on Mac with the same data, sync, and features as on iPhone and iPad. The Mac version additionally supports the TD-1 filament tester — capture optical transmission-distance and hex color readings directly via USB and sync them back to your iOS devices automatically. No subscriptions. No account required beyond iCloud. Your data stays in your own private iCloud database.

Screenshots

Trainventory4 screens
Filament4 screens

Verdict

The call

The clearest difference is update cadence: Filament at every 3 days against Trainventory's every 4 months. Trainventory's advantage is iOS requirement (18.6 vs 26.0). On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Trainventory ships an update every 4 months, Filament every 3 days. The most recent releases landed on September 11, 2026 and August 9, 2026 respectively.

Scorecard2 real differences · 8 level
Trainventory versus Filament: the parameters behind the verdict, then further details
ParameterTrainventoryFilament
PriceFreeFree
Rating4.6 (20 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings20 — better—
Update frequencyEvery 4 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS18.6 — better26.0
Further details — not scored
Size29 MB14 MB
Age rating4+4+
DeveloperNicholas EbyDavid Oreol

In-app purchases

None

Trainventory

No in-app purchases

None

Filament

No in-app purchases

Questions

Is Trainventory free?
Trainventory is free to download, with no in-app purchases.
Is Filament free?
Filament is free to download, with no in-app purchases.
Do Trainventory or Filament have ads?
Neither Trainventory nor Filament shows ads.
Which is updated more often, Trainventory or Filament?
Trainventory ships an update every 4 months, and Filament every 3 days. Most recently, Trainventory was updated on September 11, 2026 and Filament on August 9, 2026.

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