# Knock: for one person — One person on your Home Screen

> One person on your Home Screen (iPhone/iPad app by Guillaume RATOUCHNIAK.)

- Source: https://appshunter.io/ios/app/knock-for-one-person/id6799983096 (this page in markdown: same URL + `.md`)
- Developer: [Guillaume RATOUCHNIAK](https://appshunter.io/developer/6788773012)
- Category: Social Networking, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 11 MB
- Languages: American English, Danish, French (France), German (Germany), Italian, Japanese, Korean, Norwegian Bokmål, Polish, Brazilian Portuguese and 5 more
- Released: 2026-09-03
- Data updated: 2026-10-03

## What is Knock?

Knock puts one person on your Home Screen. Their face sits among your apps, and you can see at a glance whether they're free and what time it is where they are. Tap it, and their phone buzzes once. That's the whole message: I was thinking of you.

No feed, no inbox, no history. A knock happens and is gone. The only thing Knock keeps is how many days you have both shown up.

NEW IN 1.3

A photo behind their face, with Pro. Pick one from your camera roll and it sits behind them, in the app and on the widget, for a day. Like an emoji or a drawing, either of you can take it down, and nothing is kept.

Days together, and days in a row. The label under their face counts every day you both showed up, and it only ever grows. Under it, the days in a row, now forgiving of time zones: a knock at midnight in Paris meets the answer at dawn in Tokyo. With Pro, a broken run can be brought back once a month.

Busy without saying so. After an hour with nothing knocked and nothing opened, your people see you as busy. It clears the moment you open Knock, and never over a status you chose. Busy also lives in Control Center now, and it can be your Action button.

Asleep in your quiet hours. Inside the hours you set, your people see you asleep, a few z's drifting up from your face, unless you tell them otherwise. Opening Knock at night does not change that.

A note brought back. A note that expired while you were away shows the hour it left. Tap it and it comes back for a quarter of an hour. Once a day, twice with Pro.

Every emoji, in order. The full library is grouped the way your keyboard is.

And the small things: words arrive with a little pop, a Language row in Settings, a knock never waits for the network, a photo still in iCloud is waited for, and your knock counts come back on a new phone.

WHAT IT HAS ALWAYS DONE

A longer knock says more, not louder. Keep your finger down and the words change; their widget stays lit for longer, in your colour. Their phone still buzzes exactly once, however long you hold.

Behind their face, leave an emoji or a drawing. It shows on their Home Screen, fades within a day, and is then deleted from both phones. No album, no history.

Set your status from five, and it clears itself. Set your quiet hours, and a knock inside them arrives silently; their face still lights up on your widget for when you look.

One grace day a month, so a single missed day does not undo the days you have both shown up.

PRIVATE BY CONSTRUCTION

Encrypted end to end. Names, faces, statuses, notes and drawings are scrambled on your phone with a key only you and your person hold. Nobody else can read them, not even us.

No accounts. Nothing to sign up for and nothing to close. Nobody can add you unless you say yes, there is no directory and no suggestions, and the only way in is a code someone hands you.

No ads, no tracking, and no third-party code of any kind.

WHAT IT COSTS

Free for one person, with everything that matters. One payment, once, for up to eight people, every emoji, and the app icon in your colour. No subscription.

Knock is made by one person. It is small on purpose, and nothing in it is built to keep you here.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Knock Unlock | $3.99 | one-time |


## Is Knock safe?

Not enough ratings yet to assess Knock.

## Is Knock legit?

Knock: for one person appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Knock is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 3 releases)

### 1.3 — 2026-09-17

A photo behind their face, with Pro. Pick one from your camera roll and it sits behind them, in the app and on the widget, for a day. Either of you can take it down, and nothing is kept.

Days together, and days in a row. The label under their face now counts every day you both showed up, and it only ever grows. The days in a row sit underneath, and they forgive time zones: a knock at midnight in Paris meets the answer at dawn in Tokyo. With Pro, a broken run can be brought back once a month.

Busy without saying so. After an hour with nothing knocked and nothing opened, your people see you as busy. It clears the moment you open Knock, and never over a status you chose. Busy has also moved into Control Center, and it can be your Action button.

Asleep in your quiet hours. Inside the hours you set, your people see you asleep, a few z's and all, unless you tell them otherwise. Opening Knock at night does not change that.

A note brought back. A note that expired while you were away now shows the hour it left, and one tap brings it back for a quarter of an hour. Once a day, twice with Pro, and how many you have left is written right under it.

Every emoji, grouped the way your keyboard is. Words arrive with a small pop. A Language row in Settings takes you straight to the right place.

Fixes: a knock no longer waits for the network before you can knock somebody else; a "when seen" note that you saw stays seen; a note you have answered leaves its place properly; a status keeps the time zone it was set in; a tap on the widget never waits for a refresh; tapping an emoji on the drawing stamps it at once; a photo still coming down from iCloud is waited for instead of dropped; the invitation you share carries the App Store link; and your knock counts come back on a new phone.

Fifteen languages, as always. Thank you for the notes; most of what is here started as one.

### 1.2 — 2026-09-07

Leave a note that waits to be seen. A few words on their face, for one, five or fifteen minutes. Or mark it "when seen": it waits until they have actually looked, then leaves five seconds later, on both phones.

The knock clock. A dial of the hours at which the two of you knock, each in your own local time. Counts only, never times or dates. Tap the days together to see it, and share it as a card with your two faces and no numbers on it.

Open to a call? Once you have both knocked within the last half hour, Knock asks. Two yeses and a tap opens FaceTime.

Siri. "Knock Léa" sends a knock without opening the app.

A recall, once a day, of a note that expired while you were away.

Mute now mutes: a muted person's knocks make no sound and light nothing up, and they cannot tell. A bedtime set a little before your quiet hours now ends with them.

Reporting someone opens a proper sheet, with room for a line to us and the choice to include their last notes. A report is the only thing you write in Knock that we can read, and only when you send it.

Fifteen languages, as always. Thank you for the notes and the screenshots; most of what is here started as one.

### 1.0 — 2026-09-03

No release notes.

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## More apps by Guillaume RATOUCHNIAK

- [Nudge: Countdown with Friends](https://appshunter.io/ios/app/nudge-countdown-with-friends/id6788773010)
- [Runs Out: Expiry Tracker](https://appshunter.io/ios/app/runs-out-expiry-tracker/id6798293086)
- [Nomad Traveler: Visa Limit](https://appshunter.io/ios/app/nomad-traveler-visa-limit/id6799671436)
- [Bench Math: CNC Calculator](https://appshunter.io/ios/app/bench-math-cnc-calculator/id6814120682)

All apps by Guillaume RATOUCHNIAK: https://appshunter.io/developer/6788773012

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*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 2026-10-03.*