# Speaker Box Lite vs Compression Calculator

The clearest difference is review sentiment: Speaker Box Lite at 62% against Compression Calculator's 0%. Speaker Box Lite also leads on rating (4.1 vs 3.0) and ratings volume (339 vs 3). Compression Calculator's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. Speaker Box Lite sells 3 in-app purchases, starting at $4.49 per 7 days. Compression Calculator asks for nothing beyond the download.

Speaker Box Lite holds the better App Store score, 4.1 against 3.0. That said, the two scores are not equally well evidenced: Speaker Box Lite has 339 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 62% of Speaker Box Lite's written reviews are positive against 0% of Compression Calculator's.

Speaker Box Lite ships an update every 11 days, Compression Calculator every 9 days. The most recent releases landed on October 17, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Speaker Box Lite | Compression Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (339 ratings)](https://appshunter.io/ios/app/speaker-box-lite/id898625526/reviews)** | [3.0 (3 ratings)](https://appshunter.io/ios/app/compression-calculator/id1421927149/reviews) |
| Number of ratings | **339** | 3 |
| Positive reviews | **61.9% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 11 days | **Every 9 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 166 MB | 10 MB |
| Requires iOS | 15.1 | **11.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alexey Abdulin](https://appshunter.io/developer/893545070) | [Peter Linszter](https://appshunter.io/developer/530077583) |

## What reviewers say

### Speaker Box Lite

[App page](https://appshunter.io/ios/app/speaker-box-lite/id898625526)

Calculate subwoofer box volumes and design acoustic systems with detailed charts and parameter generation. Supports various enclosure types and includes a shared online speaker database. Offers cloud project saving and PRO features via subscription.

**Highlights:** Subwoofer box volume calculation, Support for multiple enclosure types, Amplitude, phase, and SPL charts, Parameter generation for vented boxes, Port and displacement volume calculation, Cloud project saving, Shared online speaker database

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Week PRO | $4.49 | per 7 days |
| Month plan | $7.99 | per month |
| PRO Account | $8.99 | per month |

**What reviewers like**

- 📊 Comprehensive graphing and visualization tools
- 💾 Extensive speaker driver database with TS parameters
- 📐 Accurate enclosure calculations for sealed and ported boxes
- ✂️ Automatic cut list generation for DIY building
- 💡 Intuitive interface for beginners and experts

**What reviewers complain about**

- 💰 Expensive subscription model ($5-7/month or 400 rubles)
- 🚫 Limited free version functionality
- 🐛 Frequent crashes and stability issues
- ❌ Inconsistent calculation accuracy
- 🔐 Billing/subscription verification problems

**Reported bugs**

- App crashes when adjusting VB/FB parameters
- Crashes on certain parameter combinations requiring reinstall
- Drawing/3D model generation hangs indefinitely
- Subscription payment charged multiple times
- Pro version access denied despite active payment

**Requested features**

- One-time purchase option instead of subscription
- Portuguese language support (PT-BR)
- Air velocity graphs
- Complete 3D model generation with final drawings
- Bandpass 4th order enclosure support


### Compression Calculator

[App page](https://appshunter.io/ios/app/compression-calculator/id1421927149)

Calculate engine compression, displacement, and piston speed using specific Honda engine parameters. Select engine components to get precise calculations for your automotive needs.

**Highlights:** Engine compression calculation, Displacement calculation, Piston speed calculation, Honda B, D, H/F, K-Series engine support, Component selection for custom calculations

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Speaker Box Lite free?

Speaker Box Lite is free to download, with in-app purchases available.

### Is Compression Calculator free?

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

### Which has better reviews, Speaker Box Lite or Compression Calculator?

Speaker Box Lite is rated higher. Speaker Box Lite averages 4.1 out of 5 from 339 ratings, while Compression Calculator averages 3.0 from 3 ratings.

### Do Speaker Box Lite or Compression Calculator have ads?

Speaker Box Lite shows ads; Compression Calculator does not.

### Which is updated more often, Speaker Box Lite or Compression Calculator?

Speaker Box Lite ships an update every 11 days, and Compression Calculator every 9 days. Most recently, Speaker Box Lite was updated on October 17, 2026 and Compression Calculator on September 30, 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.*