Key4Friends vs Langdock

Safe distribution of keys among friends has never been easier: the Key4Friends app receives keys which the owner wishes to share with you from the MobileKey app. The function is quickly explained: the owner of the door sends you an authorisation for one or more doors over the MobileKey web app. You can then open and close the doors concerned using the Key4Friends app. Key4Friends is quick, easy, safe and free to install. You will only be asked for your email during registration. We will then send you a code by text message to check registration. No password is required thanks to the distinct connection between the SIM card and the email address. Important: your smartphone needs to be connected to the Internet to open or close a door with the Key4Friends app. This means that there may be charges, depending on the contract with the operator. Don't worry, though – the amount of data sent is minimal. SimonsVoss Technologies GmbH hopes you have fun sharing keys safely and securely.

Langdock brings your workspace's AI to your iPhone, iPad and Apple Watch. Chat with the models your company provides, use your team's agents and projects, search the web with sources, and let agents work in your connected tools, always with your approval. Langdock is built for work. You sign in with your organization's account, and your workspace admin decides which models, agents and integrations you can use. CHAT WITH YOUR WORKSPACE'S MODELS • Pick any model your workspace offers, or leave it on Auto and let Langdock choose • Set how hard a model thinks: higher levels take longer for better answers • Watch answers appear as they are written, with tables, code, math, charts and images • Regenerate an answer with a different model • Attach photos, take a picture, add files or files from your integrations, or paste, and ask about them • Files the AI creates arrive as cards you can open, preview and share WEB SEARCH AND DEEP RESEARCH • Search the web in a chat and see numbered sources next to the answer • Open the sources sheet to check where a claim comes from • Start a deep research run and read the finished report with its sources AGENTS, PROJECTS AND PROMPTS • Find your team's agents, pin your favorites and start a chat with one • Type @ in the message box to mention agents, integrations, knowledge folders and saved prompts • Keep instructions, files and chats together in a project • Pin, rename, search and organize your chat history, and switch between workspaces INTEGRATIONS, WITH YOU IN CONTROL • Agents can act in your connected tools, such as your CRM or your mail • When an action needs your OK, Langdock shows what it is about to do and waits for you to Confirm or Deny • Choose which connection to use, or reauthorize or add one without leaving the chat VOICE • Dictate a message with your voice on iPhone or Apple Watch ALWAYS WITHIN REACH • Live Activities and Dynamic Island: follow a long answer from the Lock Screen, see its steps, and get notified when it is done or needs you • Widgets: ask from the Home Screen, or add New chat, Dictate and Latest chat to your Lock Screen • Control Center and Action button: start a new chat or dictate with one tap • Siri, Shortcuts and Spotlight: "Ask Langdock", start a new chat, search your chats or open an agent • Quick actions: press and hold the app icon for New chat, Dictate, Camera or Search • Share extension: send text, web links, images and PDFs from any app straight into a chat (up to five files, 25 MB each) APPLE WATCH • Ask with your voice, read the answer on your wrist, reply with a quick tap and pick up recent chats • Add Langdock to your watch face or Smart Stack for one-tap access • Your watch signs in through your iPhone, so there is nothing to set up MADE FOR iOS 26 • Native SwiftUI design with Liquid Glass, light and dark mode, and Dynamic Type • iPhone and iPad, with the iPad in every orientation • Available in English and German • No ads, and no third-party tracking in the app Langdock requires iOS 26 or later and a Langdock workspace account. Ask your workspace admin if you do not have access yet.