# Spool Master vs SpoolFlux

The clearest difference is in-app purchases: SpoolFlux at none against Spool Master's 2. SpoolFlux also leads on ads (none vs shown) and ratings volume (8 vs 1). Spool Master's advantage is iOS requirement (15.0 vs 18.6). On price, rating, update cadence and device support there is nothing between them.

Both are free to download. Spool Master sells 2 in-app purchases, starting at $1.99 per month. SpoolFlux asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Spool Master against 5.0 for SpoolFlux. That said, the two scores are not equally well evidenced: SpoolFlux has 8 ratings behind it against 1, so its average is the more settled of the two.

Spool Master ships an update every 4 days, SpoolFlux weekly. The most recent releases landed on September 13, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Spool Master | SpoolFlux |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/spool-master/id6757678949/reviews) | [5.0 (8 ratings)](https://appshunter.io/ios/app/spoolflux/id6757957454/reviews) |
| Number of ratings | 1 | **8** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Weekly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 39 MB | 7 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sebastien Girod](https://appshunter.io/developer/1472154080) | [Reimar Metzen](https://appshunter.io/developer/1453724835) |

## What reviewers say

### Spool Master

[App page](https://appshunter.io/ios/app/spool-master/id6757678949)

Manage your 3D printing filament stock with NFC tag reading/writing, inventory tracking, and smart shopping lists. Optimize expenses and reduce waste for hobbyists and professionals.

**Highlights:** NFC reading and writing for spool tags, Complete inventory management, Detailed statistics and value tracking, Automatic low stock alerts, Smart shopping list generation, Print settings configuration, Multi-device synchronization

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spool Master Monthly | $1.99 | per month |
| Spool Master Yearly | $9.99 | per year |


### SpoolFlux

[App page](https://appshunter.io/ios/app/spoolflux/id6757957454)

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

**In-app purchases:** none


## Frequently asked questions

### Is Spool Master free?

Spool Master is free to download, with in-app purchases available.

### Is SpoolFlux free?

SpoolFlux is free to download, with no in-app purchases.

### Which has better reviews, Spool Master or SpoolFlux?

Spool Master and SpoolFlux are both rated 5.0 out of 5 on the App Store, from 1 and 8 ratings respectively.

### Do Spool Master or SpoolFlux have ads?

Spool Master shows ads; SpoolFlux does not.

### Which is updated more often, Spool Master or SpoolFlux?

Spool Master ships an update every 4 days, and SpoolFlux weekly. Most recently, Spool Master was updated on September 13, 2026 and SpoolFlux on September 14, 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.*