Comparison

Ksyear vs A chang

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

Fongool

Achang

About

Ksyear

Features

Read full description

This app connects to devices such as blackhead removers and ear scoops via wireless WiFi, displaying real-time macro lens footage on mobile devices. While previewing the live feed, users can take photos and record videos, saving the current images and clips. Additionally, they can perform operations like mirror flipping, zooming in, and other adjustments on the screen.

About

A chang

Features

Read full description

This APP connects to the visual earpiece device via wireless WiFi. It enables you to view the close-up camera footage directly on your mobile phone in real time. When viewing the footage, you can flip the image. You can also take photos and record videos to save the current scene in your phone's photo album. There is also a built-in album where you can view the photos and videos.

Screenshots

Ksyear4 screens

A chang3 screens

Verdict

The call

The clearest difference is update cadence: A chang at fortnightly against Ksyear's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Ksyear ships an update every 2 months, A chang fortnightly. The most recent releases landed on September 23, 2026 and September 20, 2026 respectively.

Scorecard1 real difference · 5 level

Ksyear versus A chang: the parameters behind the verdict, then further details
Parameter	Ksyear	A chang
Price	Free	Free
Update frequency	Every 2 months	Fortnightly — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	13	13
Further details — not scored
Size	3 MB	2 MB
Age rating	+4	4+
Developer	shenzhen cooingdv technology co.,ltd.	Shenzhen Shenglong Technology Co., Ltd

In-app purchases

None

Ksyear

No in-app purchases

None

A chang

No in-app purchases

Questions

Is Ksyear free?

Ksyear is free to download, with no in-app purchases.

Is A chang free?

A chang is free to download, with no in-app purchases.

Do Ksyear or A chang have ads?

Neither Ksyear nor A chang shows ads.

Which is updated more often, Ksyear or A chang?

Ksyear ships an update every 2 months, and A chang fortnightly. Most recently, Ksyear was updated on September 23, 2026 and A chang on September 20, 2026.