# KnockKnock PingPort — Port knocking & ping knocking

> Port knocking & ping knocking (iPhone/iPad app by ALEKSEI ANISIMOV.)

- Source: https://appshunter.io/ios/app/knockknock-pingport/id6811357461 (this page in markdown: same URL + `.md`)
- Developer: [ALEKSEI ANISIMOV](https://appshunter.io/developer/6810278635)
- Category: Developer Tools, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 4 MB
- Languages: Russian, American English, European Spanish, German (Germany), Turkish
- Released: 2026-09-23
- Data updated: 2026-10-09

## What is KnockKnock PingPort?

KnockKnock opens access to your servers with one tap. It sends the knock your firewall expects, a sequence of TCP and UDP ports or ICMP echo requests of agreed sizes, and shows each step as it goes.

PORTKNOCK
• Name, host (domain, IPv4 or IPv6) and an ordered list of ports, each TCP or UDP
• Delay between ports from 0 to 1000 ms to fit your knockd timeout
• Progress for every port, and the time of the last knock in the list

PINGKNOCK
• Ordered groups of ICMP echo requests: count × data size in bytes
• The equivalent ping commands, to try the same knock from a terminal
• A table of ICMP and IP packet sizes to match your firewall rule, such as iptables -m length or MikroTik packet-size
• A warning when VPN or cellular networks may split large packets

Works with knockd and any firewall that opens access after a sequence of packets.

PRIVATE BY DESIGN
• No account, no analytics, no ads, no tracking
• Records stay on your iPhone unless you export them, and packets go straight to the hosts you enter

FREE AND PRO
The free version keeps one PortKnock server and one PingKnock target. KnockKnock Pro, a one-time purchase, removes the limit and lets you export and import your records as a file, to move them to another iPhone. No subscription.

Port knocking hides a service but does not replace SSH keys or passwords.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| KnockKnock Pro | $4.99 | one-time |


## Is KnockKnock PingPort safe?

Not enough ratings yet to assess KnockKnock PingPort.

## Is KnockKnock PingPort legit?

KnockKnock PingPort has limited verification signals. The AppsHunter Legitimacy Score for KnockKnock PingPort is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 3 releases)

### 1.2.0 — 2026-10-03

• Import from knockd.conf (Pro): pick a knockd config file, enter the host and check which port sequences to add. Settings → Records → Import knockd.conf.
• Long-press a server or a ping target to edit it, no need for "Edit list".

### v1.1.0 — 2026-10-02

• Export and import (Pro): save every server and ping target to a file and load it on another iPhone. Settings → Records.
• After "Add port" or "Add packet size" the cursor moves to the new row.
• Fixed a crash when removing the row you were typing in.

### 1.0.1 — 2026-09-23

No release notes.

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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 2026-10-09.*