Comparison

VoiceControl vs CZI Sound

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

Head to head

VoiceControl

Free

🔧 Utilities

★ 1.614 ratingsView app →

About

VoiceControl

Control your smart bath fan and lighting with voice commands. Stream music from popular services and integrate with Alexa for enhanced functionality. Adjust fan speed, dim lights, and change color temperature hands-free.

Highlights

Voice-activated fan control
Light on/off and dimming
Adjustable color temperature
Music streaming integration
Alexa built-in compatibility

Features

Read full description

Broan-NuTone Voice control bath fan Light Control – Lighting On/Off; CCT Mixing; Dimming; Fan Control – Fan On/Off; Music Function – Audio Streaming (Spotify; Pandora; Amazon Music); Alexa built-in voice control

About

CZI Sound

Features

Read full description

CZI Sound processes the audio source files (TTS, recordings, mixed audio) with a loudness-enhancing algorithm and then uploads them to the shoutbox via Bluetooth. It can also push the latest broadcast content of firmware and industry applications, ground proximity control of the shoutbox to play songs, etc.

Screenshots

VoiceControl4 screens

CZI Sound4 screens

Verdict

The call

VoiceControl and CZI Sound are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

VoiceControl ships an update every 13 months, CZI Sound every 8 months. The most recent releases landed on October 24, 2026 and October 5, 2026 respectively.

ScorecardNo meaningful differences

VoiceControl versus CZI Sound: the parameters behind the verdict, then further details
Parameter	VoiceControl	CZI Sound
Price	Free	Free
Rating	1.6 (14 ratings) — better	—
Positive reviews	0.0% of reviews	—
Number of ratings	14 — better	—
Update frequency	Every 13 months	Every 8 months — better
Ads	No	No
In-app purchases	No	No
Monetization	Free	—
Devices	iPhone, iPod	iPhone, iPad, iPod — better
Requires iOS	14.0	13.0 — better
Further details — not scored
Size	239 MB	64 MB
Age rating	12+	4+
Developer	Broan-NuTone, LLC.	Guangzhou Chengzhi Intelligent Machine Technology Co., Ltd.

In-app purchases

None

VoiceControl

No in-app purchases

None

CZI Sound

No in-app purchases

Questions

Is VoiceControl free?

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

Is CZI Sound free?

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

Do VoiceControl or CZI Sound have ads?

Neither VoiceControl nor CZI Sound shows ads.

Which is updated more often, VoiceControl or CZI Sound?

VoiceControl ships an update every 13 months, and CZI Sound every 8 months. Most recently, VoiceControl was updated on October 24, 2026 and CZI Sound on October 5, 2026.