Comparison

GM vs BS

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

Head to head

About

GM

Features

Read full description

Software for sound processing of automotive DSP amplifiers and reading song information from USB drives on DSP devices

About

BS

Features

Read full description

the software has the ability to save 6 sets of sound effects, adjust the frequency high-low pass, adjust EQ, read song files from the USB player list, and display a list of files on the phone

Screenshots

GM4 screens

BS4 screens

Verdict

The call

The clearest difference is iOS requirement: GM at 12.0 against BS's 15.6. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 4 level

GM versus BS: the parameters behind the verdict, then further details
Parameter	GM	BS
Price	Free	Free
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPod	iPhone, iPod
Requires iOS	12.0 — better	15.6
Further details — not scored
Size	5 MB	4 MB
Age rating	4+	4+
Developer	志勇王	Guangzhou Coolpower Technology Co., Ltd.