# Filament.uno vs Spool Buddy

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.

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.

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.

Filament.uno ships an update every 3 months, Spool Buddy every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Filament.uno | Spool Buddy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/filamentuno/id1543388155/reviews) | **[4.3 (9 ratings)](https://appshunter.io/ios/app/spool-buddy/id6752347588/reviews)** |
| Number of ratings | 3 | **9** |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 13 MB | 10 MB |
| Requires iOS | 18.6 | **18.2** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Paul Sohier](https://appshunter.io/developer/921377230) | [Martian Code Oy](https://appshunter.io/developer/1099214691) |

## What reviewers say

### Filament.uno

[App page](https://appshunter.io/ios/app/filamentuno/id1543388155)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Filament.uno PRO | $2.99 | one-time |


### Spool Buddy

[App page](https://appshunter.io/ios/app/spool-buddy/id6752347588)

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:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $4.99 | one-time |


## Frequently asked 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 October 24, 2026 and Spool Buddy on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*