PortKnock

Danny Sung · iOS

PortKnock

Explore the ad evidence, study the storefront, and build your next acquisition hypothesis.

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01 / Creative research

Turn the unknowns into a research plan.

01

Check the acquisition promise

Read the store headline, screenshots and description. What problem is the app promising to solve?

Study the storefront
02

Look for ad evidence

Explore apps with direct store-link matches. Compare their hooks and formats without assuming the same approach works here.

Browse observed advertisers
03

Separate demand from paid growth

Store rankings and revenue estimates describe market context. They do not establish ad spend, conversions or ROAS.

Review the market context

02 / Storefront & product

Where the click lands.

Study the product story and store experience behind the acquisition funnel.

Screenshots

PortKnock screenshot 1PortKnock screenshot 2PortKnock screenshot 3PortKnock screenshot 4PortKnock screenshot 5PortKnock screenshot 6PortKnock screenshot 7PortKnock screenshot 8

03 / Market context

The business behind the app.

Keep revenue, downloads and store rankings separate from advertising performance.

How Much Does PortKnock Make?

Monthly Revenue
$1.0K
Annualized estimate
$12.0K
Per Download
$1.00

Platform Performance

🍎iOS
Revenue
$1.0K
Downloads
1.0K
Rating
5.0 (9)

Rating Distribution

5.0
★★★★★
9 reviews
5
0%
4
0%
3
0%
2
0%
1
100%

Top Countries

🇺🇸 US🇷🇺 RU🇮🇹 IT
Reviews (3)
★★★★★User 12345🖖🏽😥🖖🏽☺️😁😔😕12/19/2025
Does what it says and the price is nice

I got tired of opening my laptop to knock any time I got to a new place. Now I can knock from my phone and connect without the extra steps. 99 cents and it’s a no brainer. No ads, no crapware, it just works

★★★★★9/7/2024
Great for DevOps

Thank you for this great tool. Using this tool I was able to secure my server ports even more! I really suggest every devops engineer to setup port knocking on their SSH port.

★★★★★Dangrillo3/13/2018
Straightforward app, with right features and engaged developer

It works, it does what you want, and the developer is friendly and helpful if you find a bug.

Version History (12)
4.183/1/2022
4.161/20/2021
4.135/3/2018
4.1112/11/2017
4.09/16/2017
3.34/5/2013
3.22/17/2013
3.12/8/2013
3.0.8337/19/2011
2.0212/15/2010
Available In (115 Countries)
🇩🇿 DZ🇦🇴 AO🇦🇿 AZ🇧🇧 BB🇧🇾 BY🇧🇲 BM🇬🇭 GH🇳🇬 Nigeria🇴🇲 OM🇺🇦 Ukraine🇺🇿 UZ🇺🇸 United States🇦🇺 Australia🇨🇦 Canada🇨🇳 China🇫🇷 France🇩🇪 Germany🇬🇧 United Kingdom🇮🇹 Italy🇯🇵 Japan🇰🇷 South Korea🇷🇺 Russia🇦🇷 Argentina🇦🇹 Austria🇧🇪 Belgium🇧🇷 Brazil🇧🇬 Bulgaria🇨🇱 Chile🇨🇴 Colombia🇨🇷 CR🇭🇷 Croatia🇨🇿 Czech Republic🇩🇰 Denmark🇩🇴 DO🇪🇨 EC🇪🇬 Egypt🇸🇻 SV🇫🇮 Finland🇬🇷 Greece🇬🇹 GT🇭🇰 Hong Kong🇭🇺 Hungary🇮🇳 India🇮🇩 Indonesia🇮🇪 Ireland🇮🇱 Israel🇰🇿 KZ🇰🇪 Kenya🇰🇼 KW🇱🇧 LB🇱🇹 Lithuania🇱🇺 LU🇲🇴 MO🇲🇬 MG🇲🇾 Malaysia🇲🇽 Mexico🇳🇱 Netherlands🇳🇿 New Zealand🇳🇴 Norway🇵🇰 Pakistan🇵🇦 PA🇵🇪 Peru🇵🇭 Philippines🇵🇱 Poland🇵🇹 Portugal🇶🇦 QA🇷🇴 Romania🇸🇦 Saudi Arabia🇸🇬 Singapore🇸🇰 Slovakia🇸🇮 Slovenia🇿🇦 South Africa🇪🇸 Spain🇱🇰 LK🇸🇪 Sweden🇨🇭 Switzerland🇹🇼 Taiwan🇹🇭 Thailand🇹🇳 TN🇹🇷 Turkey🇦🇪 UAE🇺🇾 UY🇻🇪 VE🇻🇳 Vietnam🇧🇴 BO🇰🇭 KH🇪🇪 Estonia🇱🇻 Latvia🇳🇮 NI🇵🇾 PY🇦🇫 AF🇬🇪 GE🇮🇶 IQ🇱🇾 LY🇲🇦 MA🇲🇿 MZ🇲🇲 MM🇾🇪 YE🇧🇭 BH🇨🇾 CY🇲🇹 MT🇷🇸 RS🇧🇯 BJ🇧🇫 BF🇨🇲 CM🇨🇬 CG🇨🇮 CI🇯🇴 JO🇱🇦 LA🇲🇱 ML🇸🇳 SN🇹🇿 TZ🇺🇬 UG🇿🇲 ZM🇿🇼 ZW
Supported Languages (1)
English
App Details

-- Overview -- This application is a simple port knocker for the iPhone, generally useful only to network administrators. You *must* have a port knoc...

iOS App ID
358353536
Content Rating
4+
Min OS
12.0
Size
11.2 MB
Publisher
Danny Sung