# E2 Explorer vs Spool Buddy

The clearest difference is review sentiment: Spool Buddy at 100% against E2 Explorer's 0%. Spool Buddy also leads on price (Free vs $7.99) and update cadence (every 2 weeks vs every 3 months). E2 Explorer's advantage is in-app purchases (none vs 3). On ads, device support and iOS requirement there is nothing between them.

Spool Buddy is free to download; E2 Explorer costs $7.99 up front. Spool Buddy sells 3 one-off in-app purchases. E2 Explorer asks for nothing beyond the download.

E2 Explorer ships an update every 3 months, Spool Buddy every 2 weeks. The most recent releases landed on October 5, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | E2 Explorer | Spool Buddy |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | — | **[4.3 (9 ratings)](https://appshunter.io/ios/app/spool-buddy/id6752347588/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 6 MB | 8 MB |
| Requires iOS | **18.0** | 18.2 |
| Devices | **iPhone, iPad, Mac, Apple TV** | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Jose Leal](https://appshunter.io/developer/1441468562) | [Martian Code Oy](https://appshunter.io/developer/1099214691) |

## What reviewers say

### E2 Explorer

[App page](https://appshunter.io/ios/app/e2-explorer/id1502275612)

Access and share your cloud files, including documents, images, and media. Stream content directly without needing to download it first. Offers background playback and AirPlay support for a seamless experience.

**Highlights:** Cloud file access, Direct media streaming, Background playback, AirPlay support, Secure connections, File sharing

**Features:** Vision Pro support

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is E2 Explorer free?

E2 Explorer costs $7.99, with no in-app purchases.

### Is Spool Buddy free?

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

### Do E2 Explorer or Spool Buddy have ads?

Neither E2 Explorer nor Spool Buddy shows ads.

### Which is updated more often, E2 Explorer or Spool Buddy?

E2 Explorer ships an update every 3 months, and Spool Buddy every 2 weeks. Most recently, E2 Explorer was updated on October 5, 2026 and Spool Buddy on September 24, 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.*