A chang vs 江师傅
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
A chang
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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.
江师傅
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"Master Jiang" is a visual care application specifically developed for smart earpick devices. Its core functions are designed around the concept of "Safe Cleaning + Intelligent Synergy":It is deeply connected with smart earpick hardware, synchronizing the device’s camera feed via Bluetooth/Wi-Fi to present a clear view of the inner ear canal. This makes the cleaning process "visible," preventing ear canal damage caused by blind operations. We are committed to simplifying ear care procedures with technology, making "at-home self-service ear canal cleaning" safer and more efficient. Combining professional tools with an intelligent app, we safeguard every detail of your health during each use.
Screenshots
Verdict
The clearest difference is update cadence: A chang at fortnightly against 江师傅'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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
A chang ships an update fortnightly, 江师傅 every 2 months. Both last shipped on October 30, 2026.
| Parameter | A chang | 江师傅 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13 | 12.1 — better |
| Further details — not scored | ||
| Size | 2 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | Shenzhen Shenglong Technology Co., Ltd | 德满 钟 |
In-app purchases
A chang
No in-app purchases
江师傅
No in-app purchases








