# My Filaments vs SpoolStack

The clearest difference is ads: SpoolStack at none against My Filaments's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

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

Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on October 2, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | My Filaments | SpoolStack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 days | Every 2 days |
| Size | 5 MB | 13 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [FABRIZIO CALGARO](https://appshunter.io/developer/1871767509) | [Matthew Howell](https://appshunter.io/developer/1744641447) |

## What reviewers say

### My Filaments

[App page](https://appshunter.io/ios/app/my-filaments/id6758254736)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ADS | $5.99 | one-time |


### 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 |


## Frequently asked questions

### Is My Filaments free?

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

### Is SpoolStack free?

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

### Do My Filaments or SpoolStack have ads?

My Filaments shows ads; SpoolStack does not.

### Which is updated more often, My Filaments or SpoolStack?

My Filaments ships an update every 2 days, and SpoolStack every 2 days. Most recently, My Filaments was updated on October 2, 2026 and SpoolStack 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.*