Comparison

R4.6V2 vs KAC

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

Head to head

About

R4.6V2

Features

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R4.6V2 是一款专门为车载DSP调音软件，拥有6通道31段EQ,独立的USB播放界面，专业的调节手段，让您有更佳的车载效果。

About

KAC

Features

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该应用程序专为与KAC-XH840D3一起使用而设计。该应用程序为您提供了微调汽车音响系统几乎所有方面所需的工具。通过对DSP音频处理器的调整，弥补车内空间所造成对声音的影响，重塑音乐的再生，将一个完整的舞台呈现在你面前

Screenshots

R4.6V24 screens

KAC4 screens

Verdict

The call

The clearest difference is update cadence: KAC at every 3 months against R4.6V2's every 11 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

R4.6V2 ships an update every 11 months, KAC every 3 months. Both last shipped on November 3, 2026.

Scorecard1 real difference · 5 level

R4.6V2 versus KAC: the parameters behind the verdict, then further details
Parameter	R4.6V2	KAC
Price	Free	Free
Update frequency	Every 11 months	Every 3 months — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPod	iPhone, iPod
Requires iOS	9.0	9.0
Further details — not scored
Size	4 MB	39 MB
Age rating	4+	4+
Developer	文杰陈	Jvckenwood Trading (Shanghai) Co., Ltd.