Comparison

CF vs Proton Plug&Play DSP

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

Head to head

About

CF

Features

Read full description

CF-A5PRO and A5Pro-II are two kinds of audio processing wireless Bluetooth control and management software for automotive DSP power amplifier.

About

Proton Plug&Play DSP

Features

Read full description

The app is designed for use with RAINBOW CAR AUDIO dsp Proton Plug&Play DSP This app gives you tools needed to fine tune virtually every aspect of your car audio system. Whether you ara a professional installer or an obsessive audiophile, this app allows you to realize the true potential of DSP tuning tools. Features: 31 bands EQ parametric / grahpic equalization per channel. Phase correction. Crossover type, frequency and slope adjustments. Independent input and output level controls.Time Delay. Input summing and linking. 6 customizable presets.

Screenshots

CF4 screens

Proton Plug&Play DSP1 screens

Verdict

The call

The clearest difference is update cadence: Proton Plug&Play DSP at every 2 months against CF's every 15 months. CF's advantage is iOS requirement (9.0 vs 12.0). 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

CF ships an update every 15 months, Proton Plug&Play DSP every 2 months. Both last shipped on October 25, 2026.

Scorecard2 real differences · 4 level

CF versus Proton Plug&Play DSP: the parameters behind the verdict, then further details
Parameter	CF	Proton Plug&Play DSP
Price	Free	Free
Update frequency	Every 15 months	Every 2 months — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPod	iPhone, iPod
Requires iOS	9.0 — better	12.0
Further details — not scored
Size	15 MB	9 MB
Age rating	17+	17+
Developer	Guangzhou Coolpower Technology Co., Ltd.	Rainbow Audio GmbH

In-app purchases

None

CF

No in-app purchases

None

Proton Plug&Play DSP

No in-app purchases

Questions

Is CF free?

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

Is Proton Plug&Play DSP free?

Proton Plug&Play DSP is free to download, with no in-app purchases.

Do CF or Proton Plug&Play DSP have ads?

Neither CF nor Proton Plug&Play DSP shows ads.

Which is updated more often, CF or Proton Plug&Play DSP?

CF ships an update every 15 months, and Proton Plug&Play DSP every 2 months. Most recently, CF was updated on October 25, 2026 and Proton Plug&Play DSP on October 25, 2026.