Comparison

KNX vs Smartbell

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

Head to head
About

KNX

Transform your smartphone or tablet into a comprehensive remote control for your home or office building functions. Easily manage lights, shutters, climate, and more with an intuitive interface. Personalize settings like function names and symbols for a tailored experience.

Highlights
  • Intuitive operating concept
  • Scene call via widget
  • Rapid navigation
  • Personalized settings
  • Freely definable scenes
  • Intelligent self-configuration
  • Remote control in WiFi networks
Features
Read full description

Note: This app can only be used in conjunction with the discontinued KNX/App interface V1. The app will remain available for approximately 2 more years. ***The modern type of remote control*** The innovative Feller KNX app turns smartphones and tablets into a remote control for all building functions. Thanks to its clear and easy to understand intuitive operating concept, lights, shutters, climate and much more can be controlled very simply. The user can adapt the KNX app to their individual needs, for example, rename functions or assign appropriate symbols etc. Fast navigation is guaranteed by favorites, function groups and rooms. ***Purpose*** The KNX app is used as a remote control in homes and to control functions in individual rooms or whole parts of the building. In offices, meeting rooms or training rooms, the new KNX app can be used to conveniently control presentations when combined with a tablet. In hotels, guests can, for example, control the functions in their hotel room using their own mobile device. ***App features*** • Easy, intuitive KNX app operating concept • Scene call via widget • Rapid navigation through favourites, rooms or functions • Saves time through personal settings, such as function names, symbols, order • Saves costs thanks to freely definable scenes • Saves costs thanks to intelligent self-configuration when you first start up the KNX app. • Remote control in WiFi networks (remote access in planning) • Demo version, runs without the KNX/app interface ***Hardware features*** • Simple product concept • KNX/app interface to connect app to LAN and KNX • Fast configuration within ETS4 (no plug-in!) • 12 rooms can be configured with 12 functions each • Does not require much space in the control cabinet 2TE • Supports a max. of 5 access at the same time • 5 different user rights • chargeable, available from your electrican, E-No 405 831 000 ***Operating systems*** • iOS 8 and higher ***Formats*** • iPhone / iPod Touch: portrait • iPad: portrait and landscape ***More Informations*** • http://www.feller.ch/Produktangebot/Gebaeudeautomation/Gebaeudeautomation-KNX • http://clixx.feller.ch/download/index.php?menueidLev1=279&menueidLev2=327

About

Smartbell

Features
Read full description

Mit der Smartbell A10 lernen Sie eine neue Art der Haustürklingel kennen. Eine Bestellung der Türklingel ist jederzeit auf codext.de möglich.

Screenshots

KNX4 screens
Smartbell3 screens

Verdict

The call

The clearest difference is update cadence: Smartbell at every 6 weeks against KNX's every 9 months. KNX'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 · 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

KNX ships an update every 9 months, Smartbell every 6 weeks. The most recent releases landed on June 24, 2026 and September 17, 2026 respectively.

Scorecard2 real differences · 7 level
KNX versus Smartbell: the parameters behind the verdict, then further details
ParameterKNXSmartbell
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 9 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size9 MB29 MB
Age rating4+4+
DeveloperFeller AGCodext GmbH

In-app purchases

None

KNX

No in-app purchases

None

Smartbell

No in-app purchases

Questions

Is KNX free?
KNX is free to download, with no in-app purchases.
Is Smartbell free?
Smartbell is free to download, with no in-app purchases.
Do KNX or Smartbell have ads?
Neither KNX nor Smartbell shows ads.
Which is updated more often, KNX or Smartbell?
KNX ships an update every 9 months, and Smartbell every 6 weeks. Most recently, KNX was updated on June 24, 2026 and Smartbell on September 17, 2026.

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