Cafés, open offices, the subway — the moment you look away, private windows cover themselves and shield your screen from shoulder surfing. Bring up only the window you want, when you want.
Always-on, auto-protects when you look away · Never collects your chats · 1-minute setup · KakaoTalk 1 window free 30×/day
Use the buttons above to switch cover modes, and the ①②③ numbers on the switch bar to change chats. Press the same number again to hide it. The dashed ★ is a closed favorite — press it and it opens right away.
FEATURES
It doesn't block or monitor your work. It shields your private screen from prying eyes, and you choose what to bring up.
Nothing to press. The moment you look away, the private window is already disguised as Notepad or the desktop — shutting out shoulder surfing at the source.
Stack chat windows and press a number to bring one to the front. Press the same number again to hide it. Swap the number for any single character you like.
Pin frequent chats to the switch bar as a dashed number. Even when the room is closed, pressing that number finds and opens it instantly — no more digging through the list.
Gather scattered chat windows neatly into one spot, then flip between them by number.
Place your windows where you like and hit "Save positions" once. Later, even if windows scatter or close, the switch bar's restore button snaps everything — including the main window — back to that saved layout.
Step away (no input) and even the window you were viewing covers itself. A passing mouse won't reveal it — you have to click. (Default: 1 minute.)
Right-click a number on the switch bar to exempt just that window (shown in orange) — leave rooms that don't need hiding visible. Right-click again to re-cover.
Even while covered, drag a file onto it and the real KakaoTalk window restores automatically and sends it. Being hidden never interrupts what you're doing.
The chat window melts into your desktop and vanishes. Only a title bar remains, so it looks like nothing is there.
Covers the chat with a screen that looks like a genuine Windows Notepad, so private conversations stay hidden from the person next to you.
Not a fake mock-up — it's a to-do app you actually use. Checking an item adds a strikethrough and timestamp; tags, calendar and history all really work — it looks exactly like getting work done.
Assign a hotkey per room (e.g. Ctrl+Alt+Z). Switch or hide any window without lifting your hands.
Use it with Chrome Cover and you'll have two switch bars. Bring them close and they snap together into one tidy row. Drag one and the other follows; pull apart to separate.
Turn on your PC and Sichimi launches itself and even reopens your favorite chats, ready to go. No launching and hunting every time — it's always watching your back.
HOW IT WORKS
The core is one idea — "Click away from KakaoTalk and it turns into a work screen automatically." You don't even have to hide it. Your private screen is protected before anyone can see it.
Double-click after downloading. When a Notepad icon appears in the tray, you're ready.
The instant you click another window, the chat becomes Notepad or the desktop. Nothing to press.
Press a number on the switch bar (or a hotkey) to raise just that window. Press again to hide it.
PRICING · ONE SUBSCRIPTION
Subscribe to Sichimi alone and you get Chrome & Edge covers too — all of them.
To cover 2 or more chat windows, or use Chrome/Edge covers unlimited, unlock it all with the subscription below.
※ Even past 30 uses on Free, KakaoTalk stays covered (never exposed) — you just see an upgrade note instead of the clean cover.
KakaoTalk 1 window free 30×/day · one subscription unlocks every cover · cancel anytime
🔒 New covers (stock HTS, NOX, LINE, etc.) and real-time protection during screen sharing — a premium tier for power users — are planned separately.
DOWNLOAD
KakaoTalk 1 window free up to 30×/day · to cover more, $4.99/mo or $49/yr.
📥 — downloads so far · 🟢 — viewing now
FAQ