# ViCare — user reviews > 748 indexed App Store user reviews of ViCare by Viessmann IT Service GmbH, rated 4.50/5 from 1,284 ratings. - Source: https://appshunter.io/ios/app/vicare/id964468260/reviews - App overview in markdown: https://appshunter.io/ios/app/vicare/id964468260.md - Rating breakdown: 5★ 994 · 4★ 149 · 3★ 51 · 2★ 21 · 1★ 69 ## What do users think of ViCare? Overall sentiment: neutral **Pros** - 🚀 Great app to control heating and hot water - 📊 Useful data and analytics on energy usage - 🌟 Intuitive and easy to use interface - ⏱️ Convenient remote access and control **Cons** - 🐛 Frequent connection issues and app crashes - 🔌 Unreliable sync with boiler, settings not always applied - 🕰️ Limited scheduling and timer options - 🤔 Confusing and unintuitive user experience **Commonly reported bugs** - App fails to load or gets stuck on loading screen - Settings changes not syncing properly with boiler - Incorrect time zone and DST adjustments - Frequent loss of connectivity to boiler **Most requested features** - Add a simple 'boost' or 'quick on' heating mode - Provide more granular control over heating and hot water schedules - Enable integration with smart home platforms like Alexa or HomeKit - Improve data visualization and historical energy usage tracking ## Newest reviews (15 of 748) ### 2/5 — Rubbish UI/UX *2026-05-27, version 3.39.0* On iPhone 14 Pro the app can’t scan the QR code as it opens the main camera which can’t focus on the QR code. Never mind, let’s try entering the ID manually. Well, the ID is in hexadecimal format but you can’t type letters as the app brings up the numeric keypad. ### 3/5 — Derece *2026-05-02, version 3.39.0* Derece ayarlamaksa sorun yaşıyoruz ### 1/5 — Stuck… *2026-04-19, version 3.38.2* …on intrusive AD over the splash screen. ### 1/5 — Connection *2026-04-15, version 3.38.2* I have never been able to connect it, gets stuck after connecting to the Viessmann wi-fi ### 1/5 — Werkt niet meer *2026-04-13, version 3.38.2* Na update blijft de app geblokkeerd op pagina geofencing ### 1/5 — Zaman Ayarı *2026-04-13, version 3.38.2* Teknolojinin zirvesi çağı yaşıyoruz ama uygulama vasatın üzerine çıkamıyor. Klimaya sonradan taktığım modülle bile zaman ayarlı seçeneklere erişebiliyorken fabrika çıkışlı olan üründe bu kolaylıklara erişememek gerçekten enteresan. Kısaca ben ön ayar yaparak gece ve gündüz çalışma sıcaklıklarını ayarlamak istiyorum ama böyle bir seçenek yok maalesef. Markaya güvenerek araştırmadan aldım , hata ettim. Diğer markalarda bunlara kolaylıkla erişebiliyorlar. ### 1/5 — First screen stays locked with addd *2026-04-12, version 3.38.2* First screen stays locked with addd ### 2/5 — Ev modu hatası *2026-04-08, version 3.38.2* Ev moduna geçin diye bir mesaj çıktı ve hiçbir tuş çalışmıyor. Acil düzeltme gerek. ### 3/5 — Hata düzeltmesi *2026-04-02, version 3.38.2* Uygulamada ısıtma devresi 1 kısmında ana ekrandan sıcaklık değişimi yapılamıyor düzeltilmesi gerekli ### 2/5 — Missing smarthome integration *2026-03-31, version 3.38.1* Ok, but no smartphone integration (eg AppleHome Kit) is a huge drag. Using thermostat function of homepods would be awesome + using weather data to regulate heating during the day - it’s much hotter in afternoons. ### 3/5 — Tetiklenme seviyesi neden sabit *2026-03-30, version 3.38.1* Uzaktan kontrol edebiliyor olmak gerçekten çok büyük kolaylık fakat neden istenen dereden 1 derece farkın altına düşünce çalışmaya başlıyor. Küçük bir yazılım işi, evi 23 derecede tutmak istiyorum neden 22 dereceye kadar düşmesi gerekiyor yeniden çalışmaya başlaması için ! yapın şunu 0,5 derece yada esnekliği kullanıcıya verin, inanın çok zor değil… bug fixing ### 2/5 — Algılamıyor *2026-03-29, version 3.38.1* Çoğu zaman derece yükselttiğimz veya düşürdüğümüz zaman cep telefonundan bunu algılamıyor birkaç kere yapmak zorunda kalıyoruz ### 2/5 — Great until last update *2026-03-29, version 3.38.1* We can’t update heating temperure since last update, same issue on wife’s phone ### 1/5 — Not working *2026-03-28, version 3.38.1* The promotional screen that appears when the app is opened cannot be dismissed. The 2 buttons, ‘skip’ and ´finish’ are unresponsive making the app useless. ### 2/5 — Unreliable data *2026-03-28, version 3.38.1* Gas usage data does not update even close to reliably even after communication module rebooting. Technical issues from Viess way too common. If they cared to produce a clean and reliable app they would. They haven’t. I don’t have any other issues with any wired or wireless device in my home. Do much better. ## Most critical reviews (10 lowest-rated) ### 1/5 — Authorisation error *2026-08-23, version 3.40.1* Suddenly getting ‘You are not authorised to use this application’ error message so no longer able to see boiler status data or to make any changes to time schedules or temperature. Something has changed in authorisation system. ### 1/5 — Was amazing, now unusable *2026-07-14, version 3.39.0* Been using ViCare for many years and it got better and better with each update but the last couple of updates have rendered the app completely unusable. All you get met with is a spinning circle and a dashboard that doesn’t load correctly. My Boiler requires the app to get the full benefit of its features. Where is Viessmans QC on this as a lot of people require the app to control their installation. ### 1/5 — Avoid if you can *2026-06-11, version 3.39.0* Setting up an account is like getting in to Fort Knox, especially if you are part of a shared household with different log on ids ### 1/5 — Pointless *2026-06-06, version 3.39.0* This app is completely useless. Scan to connect wifi, despite being a new boiler if fails as it wont recognise the qr code. Want to reset your boiler because it has a fault, you need to find the website and download a pdf manual then do it manually - what is the point in having a wifi connected boiler if the connection does nothing? What to know about the current error code? Well the app gives next to no information, doesn't tell you the date or time the error occurred and won't let you clear the error from the app. Want to book a service for your boiler? Well the app doesn’t do that either. It has very basic info on current temperature, no real information on performamce over time. In fact I have no idea why there is even an app as it serves no actual benefit to the customer. ### 1/5 — Complicated *2026-06-06, version 3.39.0* Sometimes I will press the “ok” button on the boiler by mistake, putting it into “AP” mode. I then spend the next hour trying to repair the boiler to the internet. You have to love Viessmann for simplicity ### 1/5 — Recent software updates - junk *2026-05-28, version 3.39.0* The previous versions of the app worked just fine and was intuitive. This latest version of software is useless. Very frustrating to lose the functionality that was marketed to us users. ### 1/5 — Hata hata *2026-05-04, version 3.39.0* Program kaç aydır açılmaz oldu ### 1/5 — Beş para etmez *2026-05-03, version 3.39.0* Sıcaklığı değiştirdiğim halde uygulama eski sıcaklıkta kalıyor. ### 1/5 — Statistics *2026-04-29, version 3.39.0* Consumption Statistics no longer working after update ### 1/5 — Unable to register with CAPTCHA *2026-04-26, version 3.38.2* Hello. I simply can’t get past your CATCHA screen for email confirmation during registration. Cookies are enabled on Safari and Google Chrome and I am not having an issue with any other website. ## Most praised reviews (10 highest-rated) ### 5/5 — Von wegen besser… *2026-05-23* Erst das Positive: Das ÜberwachungsModul an der Heizung ist hübsch anzuschauen… das wars dann auch schon. Nun das leider negative: In der App: Service eingetragen, und der Status steht auf „Deiner Anlage geht es gut“.. prima. Anderntags zeigt die App „Störung“. Und es reagiert nichts und niemand. Auf Nachfrage kommt dann irgendwann nach Wochen ein Service-Techniker und schaut nach dem Gerät… alles gut. Da kann ja erst mal die App und das Modul nichts dafür. Aber genau dafür ist ja die App/Modul geschaffen - frühzeitig zu reagieren. Viessmann ist sicher eine gute Wahl - aber die selbst ernannten „Viessmann-Spezialisten sind der Grund dass nie wieder Viessmann auf einer bei uns eingebauten Anlage stehen wird…. Nun haben wir seit Wochen einen Ausfall nach dem anderen- und das Modul zeigt fleissig:Deiner Anlage geht es gut“…. OHNE (WEITERE) WORTE. ### 5/5 — Thank you for the latest update *2026-05-14, version 3.39.0* Fantastic app and works as it should now. The issue of the Climate Sensor reported as not working has been resolved now after the April 2026 update. All in all, as a user, the app does what it’s supposed to do, mainly allowing full control over the heating system and showing the system status at the touch of a button. Love the idea or features of the holiday mode and comfy or cozy day at home settings. ### 5/5 — Супер *2026-05-02, version 3.39.0* Все доступно и понятно . Мин багов ### 5/5 — Good but reinstate feature *2026-04-10, version 3.38.2* Don’t get me wrong it’s a great app and the boiler responds immediately, however app previously allowed you to change the temperature of the current mode from the Home Screen using one tap. Now with latest updates, you have to tap a total of 3 times to change the temperature. Please allow temp to be changed again from the first screen. ### 5/5 — Дуже добре *2026-04-09, version 3.38.2* Гарний пристрій і працює бездоганно!!! ### 5/5 — ViCare top *2026-03-21, version 3.38.0* Leuke app en je weet de juiste temperatuur ### 5/5 — ViCare *2026-03-20, version 3.38.0* Super aplikacja ### 5/5 — Her eve lazım *2026-03-20, version 3.38.0* Kışın kullandığımız ev için aldığımız bir ürün, internetin çektiği her noktadan açıp kapatıyoruz. 3-4 saat önceden açıyoruz, vardığımız da heryer sıcacık oluyor. Tavsiye ediyorum. ### 5/5 — Änderungen der Heizzeiten *2026-03-14, version 3.37.2* Eigentlich eine gute App. Seit ein paar Tagen lässt sich der Anfang der Normalen Heizzeit nicht mehr mit der App ändern. Die neue Zeit lässt sich zwar einstellen und abspeichern, aber die Änderung wird nicht wirksam. Das ging sonst wie geschmiert. Wird hoffentlich mit dem nächsten Update gefixed. Update: Funktioniert wieder, das Datum im Gerät war falsch. Die Uhrzeit hatte ich im Verdacht, aber die war richtig. Erst bei einer weiteren Kontrolle ist mir aufgefallen, dass der Tag nicht stimmte. In der App stand immer „heute“ wenn ich für diesen Tag die Änderung gemacht habe. Tricki! Daher jetzt 5 Sterne ### 5/5 — Minuterie Pompe de bouclage *2026-03-10* Bonjour, Je trouve votre application extrêmement bien faite. Toutefois, j’aimerais vous suggérer une petite amélioration : pourriez-vous ajouter un bouton Minuterie accessible dès la page d’accueil pour activer temporairement la pompe de bouclage pour une durée prédéfinie (exemple pendant 5 minutes, puis la pompe se mettrait automatiquement en OFF). La pompe de bouclage est une fonction que j’utilise très fréquemment, mais ne peux me permettre de l’activer en mode programmé, car très énergivore. Ça serait une très simple amélioration, écologique qui plus est. Merci d’avance . **Developer response:** Bonjour edouardg, merci beaucoup pour vos commentaires constructifs ! Nous avons pris note de votre suggestion et nous l'examinerons lors du développement ultérieur. #WeCare --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-03.*