Comparison

iS7 vs FHEM

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

Head to head
About

iS7

Features
Read full description

--- Industrial automation tool --- Read and write variables on Siemens S7 PLC (input, output, timer, counter, memory and data block) Manage a virtual push button for remote operations, with configurable I/O, for custom use. Check operative status of S7.300 and S7.400 PLC Link the new S7.1200 and S7.1500 series and, on the last release, also the little LOGO PLC. For all detailed informations please visit support website. http://www.trotti.eu/iS7/index.html

About

FHEM

Features
Read full description

FHEM-Remote is an app that allows to query status information and to switch hardware devices that are controlled by a FHEM home automation server. The app only works in combination with a FHEM server with active FHEMWEB web interface module and the jsonlist plugin (FHEM default installation). The app was developed especially for CUL_HM and HomeMatic components, but also (partially) supports other components like: FBDECT (AVM Fritz), FS20, FHT, CUL_FHTTK, ZWave, EnOcean, MAX, HUE, EIB, IT (InternTechno), HMS, KS300, CUL_EM, WEBIO, WEBIO_12DIGITAL, CUL_TX, OWDevice (1-wire), CUL_WS, OWTHERM, ... Features: - Display the status and basic information of all hardware devices (according to the FHEM configuration, sorted by room) - Simple direct operation of devices (same set of commands as the FHEM web interface) - Setting dim values - Setting the desired temperature of temperature devices (Homematic, MAX)

Screenshots

iS74 screens
FHEM4 screens

Verdict

The call

The clearest difference is price: FHEM at Free against iS7's $14.99. On update cadence, 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

FHEM is free to download; iS7 costs $14.99 up front. iS7 sells 1 one-off in-app purchase and FHEM sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

iS7 ships an update every 3 months, FHEM every 2 months. The most recent releases landed on December 9, 2025 and September 9, 2026 respectively.

Scorecard1 real difference ยท 5 level
iS7 versus FHEM: the parameters behind the verdict, then further details
ParameteriS7FHEM
Price$14.99Free โ€” better
Update frequencyEvery 3 monthsEvery 2 months โ€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.012.0
Further details โ€” not scored
Size45 MB16 MB
Age rating4+4+
DeveloperCarlo TrottiMirco Vitr

In-app purchases

1 purchases

iS7

One-time1
  • Alarms$2.99
1 purchases

FHEM

One-time1
  • Remove Ads$1.99

Questions

Is iS7 free?
iS7 costs $14.99, and also offers in-app purchases.
Is FHEM free?
FHEM is free to download, with in-app purchases available.
Do iS7 or FHEM have ads?
Neither iS7 nor FHEM shows ads.
Which is updated more often, iS7 or FHEM?
iS7 ships an update every 3 months, and FHEM every 2 months. Most recently, iS7 was updated on December 9, 2025 and FHEM on September 9, 2026.

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