Comparison

Filament.uno vs Spool Buddy

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

Head to head
About

Filament.uno

Easily manage your 3D printing filament stock. Track what you have, add new spools, and maintain your inventory with simple tools.

Highlights
  • Add filament spools
  • Manage inventory
  • Maintain filament stock
  • Simple functionality
Read full description

Filament.uno makes 3D printing inventory easy by providing simply functionality to add, manage and maintain your filament inventory.

About

Spool Buddy

Effortlessly manage your 3D printing filament inventory. Track brands, colors, and usage with a simple, fast interface. Syncs seamlessly across Apple devices without requiring logins or network calls.

Highlights
  • iCloud syncing
  • No logins or network calls
  • Track brands, colors, and modifiers
  • Search and filter by properties
  • Usage and inventory tracking
  • Optimized for iOS and macOS
Features
Read full description

Filament tracking for 3D printing, without the fuss. Spool Buddy is a simple, fast filament inventory app made for hobbyists who want to know what filament they have, where it is, and how much is left — without accounts, subscriptions, tracking, or complicated setup. Add your filaments, organize them by brand, material, color, location, modifiers, and more. Track usage across one or multiple spools, keep drying logs, attach photos, archive old filament, and export or print your inventory when you need it. Spool Buddy syncs with iCloud, so your filament library stays up to date across iPhone, iPad, and Mac without creating an account. Features include: - Track filament inventory, usage, and remaining amounts - Multi-spool support for filaments - NFC reading and writing - iCloud sync with no logins - Photos for filament entries - Drying logs - Custom brands and materials - Detailed filament information, including colors, polymers, modifiers, fillers, and visual properties - Automatic color names and color family filtering - Support for gradients and complex filament colors - Filter by storage location, brand, color family, modifiers, and polymer - Sort by price, date added, color, brand, and name - Group by brand or material - Usage indicators at a glance - Archive filaments you no longer actively use - Export your inventory to CSV - Print your filament inventory - Optimized for iOS and macOS 26 - Small, fast, and designed to stay out of your way Spool Buddy is completely free to use. There are no subscriptions, no locked features, and no required purchases. In-app purchases are optional tips only, for people who want to support the app’s development. Made by an indie solo developer for people who just want a clean, useful way to manage their filament.

Screenshots

Filament.uno4 screens
Spool Buddy4 screens

Verdict

The call

The clearest difference is rating: Spool Buddy at 4.3 against Filament.uno's 3.7. Spool Buddy also leads on ads (none vs shown) and review sentiment (100% vs 67%). On price, in-app purchases, monetization model 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. Filament.uno sells 1 one-off in-app purchase and Spool Buddy sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Spool Buddy holds the better App Store score, 4.3 against 3.7. Both are backed by a comparable volume of ratings — 3 and 9 respectively. Written reviews point the same way: 67% of Filament.uno's written reviews are positive against 100% of Spool Buddy's.

UpkeepUpdate frequency

Filament.uno ships an update every 3 months, Spool Buddy every 2 weeks. The most recent releases landed on June 4, 2026 and September 8, 2026 respectively.

Scorecard5 real differences · 5 level
Filament.uno versus Spool Buddy: the parameters behind the verdict, then further details
ParameterFilament.unoSpool Buddy
PriceFreeFree
Rating3.7 (3 ratings)4.3 (9 ratings) — better
Positive reviews66.7% of reviews100.0% of reviews — better
Number of ratings39 — better
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS18.618.2 — better
Further details — not scored
Size13 MB8 MB
Age rating4+4+
DeveloperPaul SohierMartian Code Oy

Customer experience

Filament.uno

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Spool Buddy

All ratings9 ratings
Positive88.9%
Neutral0.0%
Negative11.1%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Filament.uno

One-time1
  • Filament.uno PRO$2.99
3 purchases

Spool Buddy

One-time3
  • Small Tip$0.99
  • Medium Tip$2.99
  • Large Tip$4.99

Questions

Is Filament.uno free?
Filament.uno is free to download, with in-app purchases available.
Is Spool Buddy free?
Spool Buddy is free to download, with in-app purchases available.
Which has better reviews, Filament.uno or Spool Buddy?
Spool Buddy is rated higher. Filament.uno averages 3.7 out of 5 from 3 ratings, while Spool Buddy averages 4.3 from 9 ratings.
Do Filament.uno or Spool Buddy have ads?
Filament.uno shows ads; Spool Buddy does not.
Which is updated more often, Filament.uno or Spool Buddy?
Filament.uno ships an update every 3 months, and Spool Buddy every 2 weeks. Most recently, Filament.uno was updated on June 4, 2026 and Spool Buddy on September 8, 2026.

Other comparisons