# Spool Master vs TagWriter4CFS Mobile

The clearest difference is ads: TagWriter4CFS Mobile at none against Spool Master's shown. TagWriter4CFS Mobile also leads on monetization model (free vs free with in-app purchases). Spool Master's advantage is iOS requirement (15.0 vs 17.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Spool Master sells 2 in-app purchases, starting at $1.99 per month and TagWriter4CFS Mobile sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Spool Master against 5.0 for TagWriter4CFS Mobile. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Spool Master ships an update every 4 days, TagWriter4CFS Mobile every 3 days. The most recent releases landed on September 13, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Spool Master | TagWriter4CFS Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/spool-master/id6757678949/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/tagwriter4cfs-mobile/id6763516754/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 days | **Every 3 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 39 MB | 3 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sebastien Girod](https://appshunter.io/developer/1472154080) | [rob coops](https://appshunter.io/developer/1843582359) |

## 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 |


### TagWriter4CFS Mobile

[App page](https://appshunter.io/ios/app/tagwriter4cfs-mobile/id6763516754)

This utility app streamlines filament tag creation for 3D printing. It connects to your printer to fetch live spool data, allowing you to quickly generate accurate tags with material, color, and spool status information. Reduce manual entry and keep your filament organized with this reliable tool.

**Highlights:** Create consistent filament tags, Fetch live CFS slot data, Review material, color, and spool status, Write tags in a few taps, Reduce manual entry, Organize filament setup

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Write Access. | $3.99 | one-time |


## Frequently asked questions

### Is Spool Master free?

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

### Is TagWriter4CFS Mobile free?

TagWriter4CFS Mobile is free to download, with in-app purchases available.

### Which has better reviews, Spool Master or TagWriter4CFS Mobile?

Spool Master and TagWriter4CFS Mobile are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Spool Master or TagWriter4CFS Mobile have ads?

Spool Master shows ads; TagWriter4CFS Mobile does not.

### Which is updated more often, Spool Master or TagWriter4CFS Mobile?

Spool Master ships an update every 4 days, and TagWriter4CFS Mobile every 3 days. Most recently, Spool Master was updated on September 13, 2026 and TagWriter4CFS Mobile on September 9, 2026.

---

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