Comparison

Marts Digital vs TR

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

Head to head

Marts Digital

Free

🔧 Utilities

★ 2.212 ratingsView app →

Free

🔧 Utilities

No ratingsView app →

About

Marts Digital

This application allows users to debug car audio devices by adjusting various parameters via a Bluetooth connection. It provides a digital interface for fine-tuning audio settings directly from a smartphone.

Highlights

Car audio device debugging
Bluetooth parameter adjustment
Digital interface for audio settings
Smartphone control

Features

Read full description

Marts Digital is an app debugging software for car audio devices, which adjusts various parameters of the device through Bluetooth connection.

About

TR

Features

Read full description

TR-48DSP is an automotive audio processor tuning app that allows users to adjust various sound quality effects to suit their personal listening preferences.

Screenshots

Marts Digital4 screens

TR4 screens

Verdict

The call

The clearest difference is update cadence: TR at every 6 weeks against Marts Digital's every 17 months. 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.

UpkeepUpdate frequency

Marts Digital ships an update every 17 months, TR every 6 weeks. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

Scorecard1 real difference · 9 level

Marts Digital versus TR: the parameters behind the verdict, then further details
Parameter	Marts Digital	TR
Price	Free	Free
Rating	2.2 (12 ratings) — better	—
Positive reviews	0.0% of reviews	—
Number of ratings	12 — better	—
Update frequency	Every 17 months	Every 6 weeks — better
Ads	No	No
In-app purchases	No	No
Monetization	Free	—
Devices	iPhone, iPod	iPhone, iPad, iPod — better
Requires iOS	12.2	12.2
Further details — not scored
Size	59 MB	57 MB
Age rating	4+	17+
Developer	Guang Dong Sound Power	伟陈

In-app purchases

None

Marts Digital

No in-app purchases

None

TR

No in-app purchases

Questions

Is Marts Digital free?

Marts Digital is free to download, with no in-app purchases.

Is TR free?

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

Do Marts Digital or TR have ads?

Neither Marts Digital nor TR shows ads.

Which is updated more often, Marts Digital or TR?

Marts Digital ships an update every 17 months, and TR every 6 weeks. Most recently, Marts Digital was updated on October 28, 2026 and TR on October 25, 2026.