# HLK_SW16 vs BatteryMonitorBL

The clearest difference is rating: HLK_SW16 at 4.0 against BatteryMonitorBL's 2.3. HLK_SW16 also leads on review sentiment (75% vs 50%) and update cadence (every 3 months vs every 6 months). BatteryMonitorBL's advantage is ratings volume (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

HLK_SW16 holds the better App Store score, 4.0 against 2.3. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews point the same way: 75% of HLK_SW16's written reviews are positive against 50% of BatteryMonitorBL's.

HLK_SW16 ships an update every 3 months, BatteryMonitorBL every 6 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | HLK_SW16 | BatteryMonitorBL |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/hlk-sw16/id1146109919/reviews)** | [2.3 (3 ratings)](https://appshunter.io/ios/app/batterymonitorbl/id1585654219/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | **75.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 6 months |
| Monetization | Free | Free |
| Size | 10 MB | 6 MB |
| Requires iOS | **7.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [深圳市海凌科电子有限公司](https://appshunter.io/developer/1116319863) | [Shenzhen zetara power system Co.,LTD](https://appshunter.io/developer/1774419082) |

## What reviewers say

### HLK_SW16

[App page](https://appshunter.io/ios/app/hlk-sw16/id1146109919)

This utility app enables remote control of 16-channel relays. Features include route configuration, remote account login, remote switch control, time synchronization, and scheduled settings.

**Highlights:** 16-channel relay remote control, Route configuration, Remote account login, Remote switch control, Time synchronization, Scheduled settings

**Features:** macOS Compatibility

**In-app purchases:** none


### BatteryMonitorBL

[App page](https://appshunter.io/ios/app/batterymonitorbl/id1585654219)

Monitor your device's battery health in real-time. View crucial metrics such as current, temperature, and voltage. Connect via Bluetooth for seamless data acquisition.

**Highlights:** Real-time battery health monitoring, View current, temperature, and voltage, Bluetooth connectivity, Supports iPhone and iPad, Free to use

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HLK_SW16 free?

HLK_SW16 is free to download, with no in-app purchases.

### Is BatteryMonitorBL free?

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

### Which has better reviews, HLK_SW16 or BatteryMonitorBL?

HLK_SW16 is rated higher. HLK_SW16 averages 4.0 out of 5 from 1 ratings, while BatteryMonitorBL averages 2.3 from 3 ratings.

### Do HLK_SW16 or BatteryMonitorBL have ads?

Neither HLK_SW16 nor BatteryMonitorBL shows ads.

### Which is updated more often, HLK_SW16 or BatteryMonitorBL?

HLK_SW16 ships an update every 3 months, and BatteryMonitorBL every 6 months. Most recently, HLK_SW16 was updated on November 2, 2026 and BatteryMonitorBL on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*