# SpoolTool vs 3D Filament Inventory

The clearest difference is in-app purchases: 3D Filament Inventory at none against SpoolTool's 1. 3D Filament Inventory also leads on iOS requirement (18.1 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. SpoolTool sells 1 one-off in-app purchase. 3D Filament Inventory asks for nothing beyond the download.

SpoolTool ships an update weekly, 3D Filament Inventory every 2 weeks. The most recent releases landed on September 8, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | SpoolTool | 3D Filament Inventory |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Size | 9 MB | 13 MB |
| Requires iOS | 26.0 | **18.1** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Luc Janssen](https://appshunter.io/developer/1867307419) | [Vanesa Morales Jimenez](https://appshunter.io/developer/1878980702) |

## What reviewers say

### SpoolTool

[App page](https://appshunter.io/ios/app/spooltool/id6757499557)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SpoolTool+ | $1.99 | one-time |


### 3D Filament Inventory

[App page](https://appshunter.io/ios/app/3d-filament-inventory/id6759489699)

**In-app purchases:** none


## Frequently asked questions

### Is SpoolTool free?

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

### Is 3D Filament Inventory free?

3D Filament Inventory is free to download, with no in-app purchases.

### Do SpoolTool or 3D Filament Inventory have ads?

Neither SpoolTool nor 3D Filament Inventory shows ads.

### Which is updated more often, SpoolTool or 3D Filament Inventory?

SpoolTool ships an update weekly, and 3D Filament Inventory every 2 weeks. Most recently, SpoolTool was updated on September 8, 2026 and 3D Filament Inventory on September 19, 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.*