Upgrade your experience. Try SimonsVoss Key4Friends, the fantastic Tools app from SimonsVoss Technologies, from the comfort of your laptop, PC, or Mac, only on BlueStacks.

Key4Friends is basically a simple way to get digital door access from someone who already manages the lock with MobileKey. The owner picks which doors to share in their web app, sends an invite, and the friend sees those doors in Key4Friends. From there it is just tap to open or close. No extra fluff, no confusing menus. It feels more like a clean remote control than a big security suite, which is kind of the point.

Setup is quick. The app asks for an email and a phone number, then sends a text with a code to confirm. There is no password to remember because it ties the account to that SIM and email combo. It does need an internet connection every time a door is opened or closed, so mobile data or Wi‑Fi is required. Data use is tiny, but a carrier could still count it, so that is worth knowing. Once the invite lands, access shows up fast and it just works, as long as the lock owner keeps the permission active.

On a PC through BlueStacks, it is easy to keep the app open alongside other stuff and check which doors are available. The interface scales fine and the buttons are clear. Just keep in mind the service expects a real phone number and that original SMS verification, so the account should be set up properly. There is not much to tinker with beyond accepting keys and pressing open or close, which actually makes it feel safe and focused. If someone needs straightforward shared access without messing with physical keys, this does exactly that and stays out of the way.

BlueStacks brings your apps to life on a bigger screen—seamless and straightforward.