# SpoolStack vs TagWriter4CFS Mobile

The clearest difference is update cadence: SpoolStack at every 2 days against TagWriter4CFS Mobile's every 5 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SpoolStack sells 2 in-app purchases, starting at $4.99 per month and TagWriter4CFS Mobile sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

SpoolStack ships an update every 2 days, TagWriter4CFS Mobile every 5 days. The most recent releases landed on June 1, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | SpoolStack | TagWriter4CFS Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/tagwriter4cfs-mobile/id6763516754/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 5 days |
| Monetization | — | Free |
| Size | 13 MB | 3 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Matthew Howell](https://appshunter.io/developer/1744641447) | [rob coops](https://appshunter.io/developer/1843582359) |

## What reviewers say

### SpoolStack

[App page](https://appshunter.io/ios/app/spoolstack/id6762043296)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SpoolStack Pro Monthly | $4.99 | per month |
| SpoolStack Pro Yearly | $49.99 | 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 SpoolStack free?

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

### Is TagWriter4CFS Mobile free?

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

### Do SpoolStack or TagWriter4CFS Mobile have ads?

Neither SpoolStack nor TagWriter4CFS Mobile shows ads.

### Which is updated more often, SpoolStack or TagWriter4CFS Mobile?

SpoolStack ships an update every 2 days, and TagWriter4CFS Mobile every 5 days. Most recently, SpoolStack was updated on June 1, 2026 and TagWriter4CFS Mobile on September 26, 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.*