Modbus TCP Pro
by Bernard Struelens
- Developer Tools
- Paid
- Rating
- 0.0
- 0 ratings · Latvia storefront
- Last update
- Jul 11, 2026
- Version 2.3
- Size
- 2 MB
- Category
- Developer Tools
- Tracked since
- Oct 9, 2026
Estimated revenue
A model estimate with a likely range, not a reported figure.
$10K/ month
Monthly gross store revenue (USD)
Where this falls on the revenue bands
- Likely range
- $1.5K–85K
- $10K–50K
- Confidence
- Low confidence
- Chart day Oct 24, 2026
- From Developer Tools grossing #25
Unverified model estimate. Neither Apple nor the developer has published this number, and the real figure can be several times higher or lower. Low confidence: the real figure can be a band higher or lower.
How this estimate is made
Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.
Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.
Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.
Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.
Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.
Full methodScreenshots
As shown on the App Store listing.
About this app
Text from the App Store listing.
Modbus Reader & Writer is a powerful and intuitive Modbus TCP tool designed for professionals.
Built for installers, HVAC technicians, engineers, and system integrators who need a fast and reliable way to test, read, and write Modbus registers directly from their iPhone.
Whether you work with heat pumps, PLCs, energy meters, or industrial controllers, this app gives you full control over Modbus TCP devices — anytime, anywhere.
Key Features
- Modbus TCP Connectivity
- Connect to any Modbus TCP device using IP address and port
- Configurable Unit ID (slave ID)
- Read Registers
- Holding Registers (Function Code 03)
- Input Registers (Function Code 04)
- Support for multiple data types and values
- Write Registers
- Write Single Register
- Write Multiple Registers
- Instant feedback and clear error reporting
- Designed for Testing & Debugging
- Ideal for commissioning and troubleshooting
- Perfect for field testing without a laptop
- Compatible with Modbus simulators and test environments (e.g. Node-RED)
Who Is This App For?
- HVAC installers and service technicians
- Industrial automation and PLC engineers
- Energy and building management professionals
- System integrators and commissioning engineers
- Developers testing Modbus-based systems
Reliable & Efficient
- Fast and stable connections
- Clear and actionable error messages
- Clean, focused interface — no unnecessary complexity
- Optimized for real-world professional use
Modbus Reader & Writer is your mobile Modbus toolbox —
ready for every installation, test, and service intervention.
What’s new
Release notes for the latest version, as written by the developer.
All functions included. No in-app purchases.
Rank history
Daily position in the Germany charts. #1 is at the top.
- Best rank
- #8
- Current rank
- #8
- Days charting
- 1 of 7
On the charts today
Small & simple score
How realistic it is for a small team to build something like this.
96/100
Not flagged as small & simple
- Developer size100% · 25
Developer: 1 app on the charts
- Audience size– · 20
No data, weight redistributed
- App size100% · 10
Size: 2 MB
- Price model100% · 15
Price model: paid
- Demand proof90% · 30
Best rank #1, 6 countries
An indicator, not a fact. We can't see team size. Calculated Oct 24, 2026 · method i2
How the score worksVersion history
- 2.3LatestReleased Jul 11, 2026