Knock Knock Downloads & RevenueKnock Knock: Friends Next Door · App Store
咚咚咚
36 days old
Not in any tracked top chart right now.
Updated 5 Nov 2026 · rankings refresh through the day
DeveloperMediocre Apps
CategorySocial Networking
PriceFree
Released
Rating★ 5.0 (8)
Version1.2.1
Age rating4+
First seen by us
11 Oct 2026
11 Oct 2026Knock Knock: Friends Next Door update history & changes
Last change · 13 events since 30 Sep 2026Full timeline ↓📦Updated to version 1.2.1📦Now updating weekly📈Dropped out of every chart we track📈Charting in a new country🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 13 events
- ✏️Knock Knock: Friends Next Door added 3 languages+ EN + JA + KO
- 📦Knock Knock: Friends Next Door updated to version 1.2.1- Added support for English, Traditional Chinese, Japanese and Korean
- Added a crayon outline effect for group photos - 📦Knock Knock: Friends Next Door: now updating weekly4 updates in 30 days, after a quiet two months
- ✏️Knock Knock: Friends Next Door: app got bigger130 MB → 164 MB (+26%)
- 📦Knock Knock: Friends Next Door updated to version 1.2.0- 新增“合影集”，自动收集你和好友的合影
- 合影时可以“变身”了
- 支持使用后置摄像头合影
- 支持后置拍摄切换焦段
- 其他优化和问题修复 - 📈Knock Knock: Friends Next Door dropped out of every chart we trackLast seen 20 Oct
- 📈Knock Knock: Friends Next Door charting in a new countryTaiwan
- ✏️Knock Knock: Friends Next Door: app got bigger92 MB → 130 MB (+41%)
- ✏️Knock Knock: Friends Next Door: runs on older iOSiOS 26.0 → iOS 18.0
- 📦Knock Knock: Friends Next Door updated to version 1.1.1修复邀请函可能无法更换的问题
- 🆕Knock Knock: Friends Next Door first spotted by AppInsider#79 in Top Free · Social Networking · China
- 📦Knock Knock: Friends Next Door version 1.0.1- 修复部分机型门镜照自动旋转的问题，也支持了手搓门镜旋转！
- 修复只允许访问部分照片时，无法添加照片的问题
- 其他问题修复 - 🆕Knock Knock: Friends Next Door released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
5.0 ★
8 ratings
Measured
New ratings a week
2.1
App Store, 4-week average
Measured
Knock Knock: Friends Next Door on the App Store
App details
App ID
6809303041
Publisher
2.5 HK LIMITED
On the store since
Sep 2026
Under a year
Minimum OS
iOS 18.0+
iPhone XS and later
Devices
iPhone · iPad
Content rating
4+
Languages
5
EN JA KO ZH ZH
Size
166 MB
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
5.0 ★
8 ratings
Measured
Ratings
8
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
2.1
4-week average
Lifetime rating
5.0★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
53/100
faster than 55% of Social Networking apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About Knock Knock: Friends Next Door
Be neighbors with your friends, and knock when you miss them.
Knock Knock is a small app for sharing everyday life with your closest friends. Invite friends to be your neighbors, and drop by their door anytime, no matter how far apart you are.
Miss them? Knock knock
Knock on a friend's door in your own rhythm to let them know you're thinking of them right now.
Open the door and share the moment
When someone knocks, answer with the view in front of you, a peephole selfie, or your latest photo.
Apart, but in the same photo
Got a photo or video from a friend? Take a photo together with it!
Pin your days to your door
Pick a few recent photos to decorate your door. When friends drop by, they'll see what you've been up to.
Keep your friends' doors on your Home Screen
Add the widget to put your friends' doors and door photos on your Home Screen. Tap it to go straight to their door.
Terms of Service: https://knock-api.5lab.app/user-agreement.html
Privacy Policy: https://knock-api.5lab.app/privacy-policy.html
Knock Knock is a small app for sharing everyday life with your closest friends. Invite friends to be your neighbors, and drop by their door anytime, no matter how far apart you are.
Miss them? Knock knock
Knock on a friend's door in your own rhythm to let them know you're thinking of them right now.
Open the door and share the moment
When someone knocks, answer with the view in front of you, a peephole selfie, or your latest photo.
Apart, but in the same photo
Got a photo or video from a friend? Take a photo together with it!
Pin your days to your door
Pick a few recent photos to decorate your door. When friends drop by, they'll see what you've been up to.
Keep your friends' doors on your Home Screen
Add the widget to put your friends' doors and door photos on your Home Screen. Tap it to go straight to their door.
Terms of Service: https://knock-api.5lab.app/user-agreement.html
Privacy Policy: https://knock-api.5lab.app/privacy-policy.html
Latest updates
1.2.1
- Added support for English, Traditional Chinese, Japanese and Korean
- Added a crayon outline effect for group photos
1.2.0
- 新增“合影集”，自动收集你和好友的合影
- 合影时可以“变身”了
- 支持使用后置摄像头合影
- 支持后置拍摄切换焦段
- 其他优化和问题修复
1.1.1
修复邀请函可能无法更换的问题
Store changes
What Knock Knock: Friends Next Door changed on its store page: name, icon, screenshots, price, size, languages, requirements.
Added 3 languages
+ EN + JA + KO
App got bigger
130 MB → 164 MB (+26%)
App got bigger
92 MB → 130 MB (+41%)
