Haptic Knock
kim seongjin Social Networking iPhoneiPadiPod touchApple Watch
Haptic Knock is a free Social Networking app for iPhone and iPad by kim seongjin. Requires iOS 17.0. Updated September 29, 2026.
- Price
- Free
- on the App Store
- Size
- 5 MB
- Age 12+
- Updated
- Sep 29
- 2026 · v0.2.3
Screenshots
About Haptic Knock
Haptic Knock is a 1:1 app for conversations that happen only through haptic vibration — not a chat thread. Connect with several people separately, and leave a knock as a check-in. Live conversation is with one person at a time — as clear as a call. Haptic Knock is for people who lead with rhythm, not words. Couples, long-distance, friends, family. No group chat, no feed. Every connection stays 1:1. Get started • Sign in with Apple. There is no password account. • Pair with a 6-digit code. • You can pair with several people. Each person has their own knock inbox. Knock — a check-in for several people Send “goodnight,” “miss you,” or the default TokTok even when they’re away. A notification waits; opening the app plays the vibration. LIVE — real time with one person Turn on a session with that person and taps on the pad go through to their iPhone. Starting LIVE with someone else ends the previous session. Apple Watch The Knock watch app is inside the iPhone app. If Automatic App Install is on, it installs with the phone. Alerts use system haptics; saved patterns play after you open them. iPhone and Apple Watch sense the knock. Patterns Save short rhythms and send them again later. Leaving a pattern in their library is free. Knock, LIVE, and pattern share stay free. • Pattern share — free • No in-app purchase • They accept it into their library Honest limits • Live taps work best with the session on and the app in front. • A pocket can turn the screen off while the session stays awake. • We don’t vibrate forever on a fully locked screen. • When away: notification → open the app → play. Change your display name or delete your account in Settings. Contact: [email protected]
What’s new
Version 0.2.3 · Updated September 29, 2026
This update • Pattern share — leave a rhythm in their library, free • Bug fixes
App privacy
The developer, kim seongjin, reported these privacy practices to Apple.
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Purchases: Purchase History
- Contact Info: Email Address, Name
- User Content: Other User Content
- Identifiers: User ID, Device ID
- Diagnostics: Crash Data, Other Diagnostic Data
Used for: App Functionality
Alternatives to Haptic Knock
Looking for apps like Haptic Knock? Here are 6 similar apps on the App Store. The highest rated is u up? - anonymous chats (4.6/5), and all 6 are free to download.
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SHLA
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Cometto:Couples App
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Haptics: Send Love to Friends
3.7
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u up? - anonymous chats
4.6
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Deco My Tree: Christmas Notes
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TAKO
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Haptic Knock | – | Free | September 29, 2026 | |
| SHLA | – | Free | Oct 15, 2025 | Compare |
| Cometto:Couples App | – | Free | Jul 11, 2026 | Compare |
| Haptics: Send Love to Friends | 3.7 / 5 (3) | Free | Apr 13, 2026 | Compare |
| u up? - anonymous chats | 4.6 / 5 (18) | Free | Sep 22, 2026 | Compare |
| Deco My Tree: Christmas Notes | 4.1 / 5 (18) | Free | Oct 24, 2026 | Compare |
| TAKO | – | Free | Dec 4, 2024 | Compare |
Compare Haptic Knock with the top alternatives: ratings, updates, ASO score and keyword gaps →