Comparison

Speaker Box Lite vs BT System

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Speaker Box Lite

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
Read full description

Design your perfect speaker box — skip the math and jump straight to building. Speaker Box Lite calculates subwoofer and speaker enclosures for you: sealed, ported (bass-reflex), 4th & 6th order bandpass, passive radiator, and transmission line. Get optimal volume and tuning recommendations, then see your box in full 3D with auto-generated blueprints and cut sheets. BUILT-IN SPEAKER DATABASE Search 5,000+ drivers from 300+ brands — Thiele-Small parameters load with one tap. Can't find yours? Add it manually in seconds. DESIGN IN 3D Place speakers and ports, add braces and dados, choose materials — and watch your enclosure come together. Design custom waveguides for tweeters and ports — conical, elliptical, hyperbolic and radial horn profiles included. SIMULATE BEFORE YOU BUILD Frequency response, phase, group delay, cone excursion and SPL plots. Compare enclosure variants side by side and pick the one that sounds right — before you cut a single board. COMPLETE SYSTEMS Multi-way boxes with subs, mids and tweeters. Full crossover designer: low-pass and high-pass filters (Butterworth, Linkwitz-Riley and more), series and parallel notch, Zobel, RC and RL contour networks, plus L-Pad attenuation. EXPORT & BUILD Export cut sheets and blueprints for every panel. 3D-print custom ports and waveguides via STL, or export the whole enclosure and its parts as STL. Send parts to CNC in STEP format for precision cutting. YOUR PROJECTS EVERYWHERE Free account keeps projects in the cloud — start on your phone, continue on the web at speakerboxlite.com. Upgrade to PRO for unlimited projects, offline database access and all advanced features. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel anytime in your Account Settings. Privacy Policy: https://speakerboxlite.com/privacy Terms of Use: https://speakerboxlite.com/terms-of-use

About

BT System

Start your car remotely using your smartphone, eliminating the need to carry physical keys. This app provides convenient access to your vehicle through your mobile device.

Highlights
  • Remote car starting
  • Keyless car access
  • Smartphone control
  • Convenient vehicle access
Features
Read full description

BT System is a solution for your car which makes your life easier by providing you with the facility to start your car from your phone. BT System makes life easier by removing the hassle of carrying the car keys all the time. BT System facilitates you by providing you an ease in accessing your car with a smartphone.

Screenshots

Speaker Box Lite4 screens
BT System1 screens

Verdict

The call

The clearest difference is rating: Speaker Box Lite at 4.1 against BT System's 2.0. Speaker Box Lite also leads on ratings volume (339 vs 1). BT System'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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

Speaker Box Lite holds the better App Store score, 4.1 against 2.0. That said, the two scores are not equally well evidenced: Speaker Box Lite has 339 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Speaker Box Lite ships an update every 11 days, BT System weekly. The most recent releases landed on September 29, 2026 and September 16, 2026 respectively.

Scorecard6 real differences · 4 level
Speaker Box Lite versus BT System: the parameters behind the verdict, then further details
ParameterSpeaker Box LiteBT System
PriceFreeFree
Rating4.1 (339 ratings) — better2.0 (1 ratings)
Positive reviews61.9% of reviews—
Number of ratings339 — better1
Update frequencyEvery 11 daysWeekly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.18.0 — better
Further details — not scored
Size160 MB21 MB
Age rating4+4+
DeveloperAlexey Abdulin凤军 程

Customer experience

Speaker Box Lite

All ratings339 ratings
Positive78.8%
Neutral4.1%
Negative17.1%
Written reviews139 reviews
Positive61.9%
Neutral2.9%
Negative35.3%

BT System

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Speaker Box Lite

Reported bugs

12 issues
  • 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
Show 7 more
  • Email registration validation errors
  • Parameters randomly change during design process
  • Incorrect TS parameter data from driver database
  • Incompatibility with latest iOS versions
  • Overlapping port and speaker placement in designs
  • Error messages about missing parameters with no input field
  • App freezes when entering box specifications

Requested features

13 requests
  • 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
Show 8 more
  • Tweeter/midrange enclosure design
  • Internal partition calculations
  • Impedance information in database
  • Video tutorials and glossary for technical terms
  • Dipole/ripole calculations
  • Passive radiator enclosure support
  • Better port visualization in cut sheets
  • Multi-sub application improvements

BT System

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Speaker Box Lite

Subscriptions3
  • Week PRO$4.497 Days
  • Month plan$7.991 Month
  • PRO Account$8.991 Month
None

BT System

No in-app purchases

Questions

Is Speaker Box Lite free?
Speaker Box Lite is free to download, with in-app purchases available.
Is BT System free?
BT System is free to download, with no in-app purchases.
Which has better reviews, Speaker Box Lite or BT System?
Speaker Box Lite is rated higher. Speaker Box Lite averages 4.1 out of 5 from 339 ratings, while BT System averages 2.0 from 1 ratings.
Do Speaker Box Lite or BT System have ads?
Speaker Box Lite shows ads; BT System does not.
Which is updated more often, Speaker Box Lite or BT System?
Speaker Box Lite ships an update every 11 days, and BT System weekly. Most recently, Speaker Box Lite was updated on September 29, 2026 and BT System on September 16, 2026.

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