Comparison

ZenCom vs Optima mobile 3

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

Head to head
About

ZenCom

Remotely monitor your Zennio Intercom. See visitors, communicate with them, and unlock your door from any location.

Highlights
  • Remote intercom access
  • See visitors at your door
  • Two-way audio communication
  • Remote door unlocking
  • Global accessibility
Features
Read full description

With ZenCom, the user can interact with his Zennio Intercom from anywhere in the world. ZenCom allows you to see who is ringing your doorbell, having a conversation and even open remotely as if you were at home. LINKS User manual: https://www.zennio.com/documents/manual_zencom_en Privacy Policy: https://www.zennio.com/zencom-privacypolicy EULA: https://sip.zennioapps.com:4003/res/ZencomTermsOfUse.pdf

About

Optima mobile 3

Features
Read full description

With DIVUS OPTIMA mobile 3 you can control your home automation system even when you are on the road. Use your device in order to supervise and control the functions of your home via Wi-Fi or mobile network. The app acts as client software that connects to your DIVUS KNX SERVER or DIVUS D+ device and thereby gives you access to your KNX system. The simple interface of the DIVUS OPTIMA app gives you easy access to all functionalities of your system. Not only light control is possible but also HVAC control, irrigation, scenarios, shutter functions, energy management and much more can be easily managed remotely. In order to use the app no additional configuration is required! Once your KNX bus system is working and your DIVUS KNXCONTROL device is set up, just insert the IP address / port of the device and a valid set of credentials in the app settings and you will gain access to all the KNX devices of your system. New: Take advantage of the new interface where each project has its summary page, showing the connection status and giving access to a set of quick-access objects which you can directly control - without loading the whole visualization. Of course you can also load the project as usual and access all of its functions. +Requirements: This application is compatible only with the following DIVUS devices: DIVUS KNX SERVER with software version 2.5.0 or higher, DIVUS KNX SERVER 3 (any version), DIVUS D+ (any version) +Additional information When connecting for the first time with a DIVUS device there will be an initial loading time of approximately 1 minute during which the contents from the server are downloaded. Additional information about the usage of the app can be found in the documentation section on the DIVUS homepage. +Functions: - Project overview page - Quick-access objects - QR-code scanning and project sharing to quickly configure the access to a project - Light control (on / off, dimming), shutters, irrigation, โ€ฆ - HVAC (heating / cooling) - Scenarios - Energy management - Weather information - Notifications - Cloud access

Screenshots

ZenCom3 screens
Optima mobile 34 screens

Verdict

The call

The clearest difference is update cadence: ZenCom at monthly against Optima mobile 3's every 8 months. Optima mobile 3's advantage is iOS requirement (13.0 vs 15.0). 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

ZenCom ships an update monthly, Optima mobile 3 every 8 months. The most recent releases landed on October 11, 2026 and September 28, 2026 respectively.

Scorecard2 real differences ยท 6 level
ZenCom versus Optima mobile 3: the parameters behind the verdict, then further details
ParameterZenComOptima mobile 3
PriceFreeFree
Positive reviews40.0% of reviewsโ€”
Update frequencyMonthly โ€” betterEvery 8 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeโ€”
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 โ€” better
Further details โ€” not scored
Size62 MB72 MB
Age rating4+4+
DeveloperZennioDIVUS GmbH

In-app purchases

None

ZenCom

No in-app purchases

None

Optima mobile 3

No in-app purchases

Questions

Is ZenCom free?
ZenCom is free to download, with no in-app purchases.
Is Optima mobile 3 free?
Optima mobile 3 is free to download, with no in-app purchases.
Do ZenCom or Optima mobile 3 have ads?
Neither ZenCom nor Optima mobile 3 shows ads.
Which is updated more often, ZenCom or Optima mobile 3?
ZenCom ships an update monthly, and Optima mobile 3 every 8 months. Most recently, ZenCom was updated on October 11, 2026 and Optima mobile 3 on September 28, 2026.

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