# Speaker Box Lite vs Flow

The clearest difference is price: Speaker Box Lite at Free against Flow's $4.99. Speaker Box Lite also leads on update cadence (every 11 days vs every 5 weeks) and iOS requirement (15.1 vs 17.0). Flow's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support there is nothing between them.

Speaker Box Lite is free to download; Flow costs $4.99 up front. Speaker Box Lite sells 3 in-app purchases, starting at $4.49 per 7 days. Flow asks for nothing beyond the download.

Speaker Box Lite ships an update every 11 days, Flow every 5 weeks. The most recent releases landed on September 29, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Speaker Box Lite | Flow |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[4.1 (339 ratings)](https://appshunter.io/ios/app/speaker-box-lite/id898625526/reviews)** | — |
| Number of ratings | **339** | — |
| Positive reviews | 61.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 11 days** | Every 5 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 160 MB | 4 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Alexey Abdulin](https://appshunter.io/developer/893545070) | [Ibrahim Sefa Tuna](https://appshunter.io/developer/1877553788) |

## 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


### Flow

[App page](https://appshunter.io/ios/app/flow-sensor-data-pipeline/id6761208127)

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

**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 Flow free?

Flow costs $4.99, with no in-app purchases.

### Do Speaker Box Lite or Flow have ads?

Speaker Box Lite shows ads; Flow does not.

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

Speaker Box Lite ships an update every 11 days, and Flow every 5 weeks. Most recently, Speaker Box Lite was updated on September 29, 2026 and Flow on September 26, 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.*