Comparison

Ble2Serial vs FieldBus Toolkit

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

Head to head

About

Ble2Serial

Features

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The iOS portable devices will connect with the Bluetooth Low Energy (BLE) to serial port converter devices and exchange data with them bi-directional. The serial port includes RS-232 or RS-422 RS-485 interfaces. The user will test the APP with the SCADA, Robot, UAV, PLC, CNC or etc. with the BLE to serial port devices. The APP will be customized to meet the specific applications.

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

Ble2Serial3 screens

FieldBus Toolkit4 screens

Verdict

The call

The clearest difference is in-app purchases: Ble2Serial at none against FieldBus Toolkit's 1. Ble2Serial also leads on ads (none vs shown). On price, update cadence, 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. Ble2Serial asks for nothing beyond the download.

UpkeepUpdate frequency

Ble2Serial ships an update every 4 weeks, FieldBus Toolkit every 2 months. The most recent releases landed on October 2, 2026 and October 9, 2026 respectively.

Scorecard2 real differences · 4 level

Ble2Serial versus FieldBus Toolkit: the parameters behind the verdict, then further details
Parameter	Ble2Serial	FieldBus Toolkit
Price	Free	Free
Update frequency	Every 4 weeks — better	Every 2 months
Ads	No — better	Yes
In-app purchases	No — better	Yes
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	13.0	13.0
Further details — not scored
Size	18 MB	29 MB
Age rating	4+	4+
Developer	FUH CHERNG SHEU	DONGSOO LEE

In-app purchases

None

Ble2Serial

No in-app purchases

1 purchases

FieldBus Toolkit

One-time1

Remove Ads$1.99

Questions

Is Ble2Serial free?

Ble2Serial 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 Ble2Serial or FieldBus Toolkit have ads?

FieldBus Toolkit shows ads; Ble2Serial does not.

Which is updated more often, Ble2Serial or FieldBus Toolkit?

Ble2Serial ships an update every 4 weeks, and FieldBus Toolkit every 2 months. Most recently, Ble2Serial was updated on October 2, 2026 and FieldBus Toolkit on October 9, 2026.