Batteries vs Hearing test instruments
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Batteries
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蓝牙设备数据的读取操作和设置
Hearing test instruments
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一款连接蓝牙耳机调节音量大小的应用
Screenshots
Verdict
The clearest difference is update cadence: Hearing test instruments at every 5 weeks against Batteries's every 5 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.
Batteries ships an update every 5 months, Hearing test instruments every 5 weeks. The most recent releases landed on September 16, 2026 and May 17, 2026 respectively.
| Parameter | Batteries | Hearing test instruments |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 — better | 12.1 |
| Further details — not scored | ||
| Size | 26 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | 深圳市集智电子有限公司 | Cemho Medical Technology (Guangdong) Co., Ltd |
In-app purchases
Batteries
No in-app purchases
Hearing test instruments
No in-app purchases
