# Spool Buddy vs RxStorage

The clearest difference is in-app purchases: RxStorage at none against Spool Buddy's 3. RxStorage also leads on update cadence (every 4 days vs every 2 weeks). Spool Buddy's advantage is iOS requirement (18.2 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Spool Buddy sells 3 one-off in-app purchases. RxStorage asks for nothing beyond the download.

Spool Buddy ships an update every 2 weeks, RxStorage every 4 days. The most recent releases landed on October 25, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Spool Buddy | RxStorage |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (9 ratings)](https://appshunter.io/ios/app/spool-buddy/id6752347588/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 18 MB |
| Requires iOS | **18.2** | 26.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Martian Code Oy](https://appshunter.io/developer/1099214691) | [其炜 李](https://appshunter.io/developer/1486050814) |

## What reviewers say

### Spool Buddy

[App page](https://appshunter.io/ios/app/spool-buddy/id6752347588)

Effortlessly manage your 3D printing filament inventory. Track brands, colors, and usage with a simple, fast interface. Syncs seamlessly across Apple devices without requiring logins or network calls.

**Highlights:** iCloud syncing, No logins or network calls, Track brands, colors, and modifiers, Search and filter by properties, Usage and inventory tracking, Optimized for iOS and macOS

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $4.99 | one-time |


### RxStorage

[App page](https://appshunter.io/ios/app/rxstorage/id6758520731)

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

**In-app purchases:** none


## Frequently asked questions

### Is Spool Buddy free?

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

### Is RxStorage free?

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

### Do Spool Buddy or RxStorage have ads?

Neither Spool Buddy nor RxStorage shows ads.

### Which is updated more often, Spool Buddy or RxStorage?

Spool Buddy ships an update every 2 weeks, and RxStorage every 4 days. Most recently, Spool Buddy was updated on October 25, 2026 and RxStorage on October 5, 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.*