Comparison

iAudio vs FieldBus Toolkit

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

Head to head

iAudio

iAudio,Headphone ,tool

About

iAudio

Features

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Headphone management assistants can manage headset equipment in the APP, which can quickly connect headphones and set headphones gestures. It is used for fixedware upgrade service software, controlling volume, and adjusting sound effects to bring better experience to users.

About

FieldBus Toolkit

Features

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FieldBus Toolkit is the essential utility for embedded engineers and PLC programmers. Debug Modbus TCP, MQTT, HTTP, and socket communications directly from your mobile device. [Key Features] 1. Multi-Protocol Support - Modbus TCP Client - MQTT Client (Publish/Subscribe) - HTTP REST Client (GET, POST, PUT, DELETE) - TCP/UDP Client & Server (Echo/Broadcast) 2. Data Visualization - Send and receive data in ASCII or HEX format. - Real-time communication logs. 3. Efficiency Tools - Save frequently used commands as Macros for quick access. - One-touch data transmission. 4. Developer Friendly - Perfect for testing Arduino, ESP32, Raspberry Pi, and industrial PLCs.

Screenshots

iAudio3 screens

FieldBus Toolkit4 screens

Verdict

The call

The clearest difference is in-app purchases: iAudio at none against FieldBus Toolkit's 1. iAudio also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 3 months). On price, device support and iOS requirement 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. FieldBus Toolkit sells 1 one-off in-app purchase. iAudio asks for nothing beyond the download.

UpkeepUpdate frequency

iAudio ships an update every 2 weeks, FieldBus Toolkit every 3 months. The most recent releases landed on November 4, 2026 and November 2, 2026 respectively.

Scorecard3 real differences · 3 level

iAudio versus FieldBus Toolkit: the parameters behind the verdict, then further details
Parameter	iAudio	FieldBus Toolkit
Price	Free	Free
Update frequency	Every 2 weeks — better	Every 3 months
Ads	No — better	Yes
In-app purchases	No — better	Yes
Devices	iPhone, iPod	iPhone, iPad, iPod — better
Requires iOS	15.6	15.0 — better
Further details — not scored
Size	130 MB	28 MB
Age rating	17+	4+
Developer	Shenzhen b-cloudy Technology Co., Ltd.	DONGSOO LEE

In-app purchases

None

iAudio

No in-app purchases

1 purchases

FieldBus Toolkit

One-time1

Remove Ads$1.99

Questions

Is iAudio free?

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

Is FieldBus Toolkit free?

FieldBus Toolkit is free to download, with in-app purchases available.

Do iAudio or FieldBus Toolkit have ads?

FieldBus Toolkit shows ads; iAudio does not.

Which is updated more often, iAudio or FieldBus Toolkit?

iAudio ships an update every 2 weeks, and FieldBus Toolkit every 3 months. Most recently, iAudio was updated on November 4, 2026 and FieldBus Toolkit on November 2, 2026.