Comparison

IoT RTU 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

IoT RTU

This app provides remote monitoring and control for industrial M2M and IoT devices. It utilizes cellular networks like GSM, GPRS, 3G, 4G, and NB-IoT for seamless communication.

Highlights

Remote monitoring
Industrial M2M control
IoT device management
Cellular network support
GSM, GPRS, 3G, 4G, NB-IoT compatibility

Features

Read full description

A Remote Monitoring & Control solution for Industrial M2M, IoT, RTU over GSM GPRS 3G 4G NB-IoT cellular network.

About

FieldBus Toolkit

Features

Read full description

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

IoT RTU4 screens

FieldBus Toolkit4 screens

Verdict

The call

The clearest difference is in-app purchases: IoT RTU at none against FieldBus Toolkit's 1. IoT RTU also leads on ads (none vs shown) and iOS requirement (8.0 vs 13.0). On price, update cadence 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. FieldBus Toolkit sells 1 one-off in-app purchase. IoT RTU asks for nothing beyond the download.

UpkeepUpdate frequency

IoT RTU ships an update monthly, FieldBus Toolkit every 2 months. The most recent releases landed on October 12, 2026 and October 9, 2026 respectively.

Scorecard3 real differences · 5 level

IoT RTU versus FieldBus Toolkit: the parameters behind the verdict, then further details
Parameter	IoT RTU	FieldBus Toolkit
Price	Free	Free
Positive reviews	33.3% of reviews	—
Update frequency	Monthly — better	Every 2 months
Ads	No — better	Yes
In-app purchases	No — better	Yes
Monetization	Free	—
Devices	iPhone, iPod	iPhone, iPad, iPod — better
Requires iOS	8.0 — better	13.0
Further details — not scored
Size	8 MB	29 MB
Age rating	4+	4+
Developer	朝山马	DONGSOO LEE

In-app purchases

None

IoT RTU

No in-app purchases

1 purchases

FieldBus Toolkit

One-time1

Remove Ads$1.99

Questions

Is IoT RTU free?

IoT RTU 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 IoT RTU or FieldBus Toolkit have ads?

FieldBus Toolkit shows ads; IoT RTU does not.

Which is updated more often, IoT RTU or FieldBus Toolkit?

IoT RTU ships an update monthly, and FieldBus Toolkit every 2 months. Most recently, IoT RTU was updated on October 12, 2026 and FieldBus Toolkit on October 9, 2026.