# EXPLORER 1 vs Subwoofer Box Calculator

The clearest difference is ads: EXPLORER 1 at none against Subwoofer Box Calculator's shown. EXPLORER 1 also leads on iOS requirement (9.0 vs 16.4). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | EXPLORER 1 | Subwoofer Box Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | — | Fortnightly |
| Size | 85 MB | 50 MB |
| Requires iOS | **9.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [文 张](https://appshunter.io/developer/1512068135) | [Sahar Yehezkel Avraham](https://appshunter.io/developer/6800669429) |

## What reviewers say

### EXPLORER 1

[App page](https://appshunter.io/ios/app/explorer-1/id6753917159)

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

**In-app purchases:** none


### Subwoofer Box Calculator

[App page](https://appshunter.io/ios/app/subwoofer-box-calculator/id6802809852)

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

**In-app purchases:** none


## Frequently asked questions

### Is EXPLORER 1 free?

EXPLORER 1 is free to download, with no in-app purchases.

### Is Subwoofer Box Calculator free?

Subwoofer Box Calculator is free to download, with no in-app purchases.

### Do EXPLORER 1 or Subwoofer Box Calculator have ads?

Subwoofer Box Calculator shows ads; EXPLORER 1 does not.

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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.*