# Haptic Knock — Haptic Messenger > Haptic Messenger (iPhone/iPad app by kim seongjin.) - Source: https://appshunter.io/ios/app/haptic-knock/id6795362235 (this page in markdown: same URL + `.md`) - Developer: [kim seongjin](https://appshunter.io/developer/6795362237) - Category: Social Networking, Lifestyle - Price: Free with in-app purchases - Age rating: 12+ - Requires: iOS 17.0 · 5 MB - Languages: American English, French (France), German (Germany), Japanese, Korean, European Portuguese, Chinese (Simplified, China), European Spanish, Thai, Chinese (Traditional, Taiwan) and 1 more - Released: 2026-08-06 - Data updated: 2026-09-01 - User reviews in markdown: https://appshunter.io/ios/app/haptic-knock/id6795362235/reviews.md ## What is 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. An optional purchase is needed only if you want to copy a pattern into their library. Knock, LIVE, and receiving patterns stay free. • Pattern share unlock — one-time non-consumable • Only the sender unlocks. Receiving and accepting stay free. • Restore purchases in Settings. 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: dive2ice@me.com ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Pattern share unlock | $1.99 | one-time | ## Version history (last 2 releases) ### 0.2.2 — 2026-08-20 This update • Apple Watch — knock and LIVE from your wrist • Knock several people; talk live with one • Haptic styles — Original, Softly, Tick-tick, Thump • LIVE stays on in a pocket • iPhone and Watch LIVE together • Tap to play in the inbox • More languages • Bug fixes ### 0.1.6 — 2026-08-06 No release notes. --- *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 2026-09-01.*