ScreenTronic vs zigfred
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ScreenTronic
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ScreenTronic by CONTROLtronic GmbH Blind Control from anywhere – at home, in office or on vacation! Control your blinds easily, intuitively and in real-time with the ScreenTronic® app on your iOS device. Whether you control the blinds in a complex office building, hotel room, hospital, conservatory or private home - the usability is extremely simple as long as you use the worldwide standard for home and building automation KNX* or the ScreenTronic® blind controls from CONTROLtronic with LAN interface. Blind control via graphical user interface as well as their configuration are both done completely within ScreenTronic® app. Imagine, you wake up and can lift the blinds automated to admire the view without the need of leaving your warm bed! Or think about burglary prevention by controlling your blinds from your holiday resort! Advantages: • Remote Control: Replace the conventional radio remote control with a smart solution. • ScreenControl: Blind Control Center for automatic shading and sun tracking (optional extension) • Weather station: Display and processing of weather data from a CONTROLtronic or KNX weather station • Timer: Time-controlled blind positions • Types: Sun protection, privacy protection, shading, shutter, roller blind, venetian blind and awning. • Comfort: The entire configuration and operation of the blinds is simple and completely handled within the app. • Control: Different blind control elements and their structure can be created by you. Blinds are controlled either via graphical representation for height and angle (value-driven) or command buttons to start, stop and step adjustment (event-driven). • Real-time: The blind position (height and slat angle) is displayed and updated on the surface via system status feedback. • Favorites: For quick access individual control groups can be defined as favorites. • Comfort Positions: Program your preferred blind positions as preconfigured positions for height and angle (up to 5 comfort positions per control group). • Projects, zones and control groups: There is no limitation on the number of projects, zones and control groups so the blind control structure is infinite. • Operation: Between zones and control groups can be changed quickly and easily by swiping the display of your device. • Communication: Comprehensive communication options allow an wide application range: • Direct with CT Smart Control of the ScreenTronic® blind controls with LAN interface. • Via KNX standard with KNX tunneling or KNX routing to all common KNX IP interfaces and KNX IP routers. • Connection: Connect your smart device via Wi-Fi or mobile networks (VPN) with the KNX IP Interface or KNX IP router or directly to the CONTROLtronic control system. • Project structure: The project control structure can be documented clearly as site-map which is convertible in PDF as well as exportable. • Replicability: All projects can be transferred via iTunes or email for backup and replication on other devices. • Compatibility: The ScreenTronic® app is compatible with iPhone, iPod Touch, iPad Mini, iPad, iPad Air and iPad Pro. The respective display size is optimally supported. For permanent use of the KNX connection a license is mandatory. Details see www.controltronic.com ScreenTronic®: one app - one function: BLIND CONTROL! *KNX is the worldwide standard for home and building control. There exist a variety of components from about 425 manufacturers worldwide. CONTROLtronic is a KNX member and KNX manufacturer, as well as ABB, Berker, Busch-Jaeger, Gira, Hager, Jung, Merten, Schneider, Somfy, Warema etc. KNX systems are installed by about 75,000 electricians and KNX partners in over 160 countries worldwide.
zigfred
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With the zigfred app, you can set up your zigfreds and connected smart home devices according to your preferences. After the set up you can easily control them with your smartphone. In no time at all, you customize the functions of your zigfred's front buttons. Replace your old light switch with zigfred and wire it to your existing lights or devices. Then control the connected lights with the zigfred app or with your existing smart home solution. With zigfred, you can also add other compatible lights and devices to your smart home network and control them with the app, such as Philips Hue or IKEA Tradfri. In a nutshell: • You can freely assign the functions of your zigfred's buttons and "virtually wire" your home as you wish. • You can control zigfred and many other zigbee devices with this app via Bluetooth Low Energy*. • You can use zigfred as a standalone Zigbee gateway or use your existing compatible gateway**. • You can control zigfred directly from the Philips Hue app or by voice***. • You can integrate existing conventional lamps into your Philips Hue network***. For more information, visit https://zigfred.ch. * Requires at least 1 zigfred uno or plus ** e.g. Philips Hue Bridge, see https://help.zigfred.ch *** Requires Philips Hue Bridge
Screenshots
Verdict
The clearest difference is update cadence: zigfred at every 3 weeks against ScreenTronic's every 6 months. zigfred also leads on iOS requirement (12.0 vs 15.6). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ScreenTronic ships an update every 6 months, zigfred every 3 weeks. The most recent releases landed on September 23, 2026 and October 9, 2026 respectively.
| Parameter | ScreenTronic | zigfred |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 86 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | CONTROLtronic GmbH | Siglis AG |
In-app purchases
ScreenTronic
No in-app purchases
zigfred
No in-app purchases









