Comparison

Unified vs TCP ModBus

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

Head to head
About

Unified

Features
Read full description

This app allows hosting different HMIs to monitor and control a plant or machine. You can create the HMIs with the Unified-E App Designer and publish them on the Unified-E App Manager. Unified-E is a software product which is used to operate machines or plants with a smartphone. App development time is drastically reduced by using the "Unified-E App Designer" software, where you can define both the HMI views and push notifications for your individual HMI app. No app programming knowledge is required. There is a Gateway PC required which connects smartphone with machine and ensures that communication is secured and only granted for authorized users. The "Pro" license also allows operating a machine via the Internet without performing any configuration on the firewall or router. By now there are already multiple Unified-E endpoint adapters, e. g. for the S7-, ControlLogix-, Modbus- or OPC UA interface. The software, user manuals, licenses and further information can be found on the website ww.unified-e.com. For developers and integrators all licenses are for free.

About

TCP ModBus

Features
Read full description

TCP Modbus - the application created for testing and debugging of systems supporting TCP ModBus protocol. Simulation sensors, send control commands, read data registers, and others. - Operation as a server or a client; - supports two modes slave and master; - reading and writing data register; - storage of the last session of the data; - storage connection settings; - support decrypting of incoming message.

Screenshots

Unified1 screens
TCP ModBus4 screens

Verdict

The call

The clearest difference is update cadence: TCP ModBus at every 4 days against Unified's every 3 weeks. TCP ModBus also leads on iOS requirement (8.0 vs 12.2). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Unified ships an update every 3 weeks, TCP ModBus every 4 days. The most recent releases landed on September 13, 2026 and September 27, 2026 respectively.

Scorecard2 real differences ยท 4 level
Unified versus TCP ModBus: the parameters behind the verdict, then further details
ParameterUnifiedTCP ModBus
PriceFreeFree
Update frequencyEvery 3 weeksEvery 4 days โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.28.0 โ€” better
Further details โ€” not scored
Size184 MB1 MB
Age rating4+4+
DeveloperUnified-E AGะขะŸะฃ

In-app purchases

None

Unified

No in-app purchases

None

TCP ModBus

No in-app purchases

Questions

Is Unified free?
Unified is free to download, with no in-app purchases.
Is TCP ModBus free?
TCP ModBus is free to download, with no in-app purchases.
Do Unified or TCP ModBus have ads?
Neither Unified nor TCP ModBus shows ads.
Which is updated more often, Unified or TCP ModBus?
Unified ships an update every 3 weeks, and TCP ModBus every 4 days. Most recently, Unified was updated on September 13, 2026 and TCP ModBus on September 27, 2026.

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