# i Sound Level Meter vs SuperpowerBMS

The clearest difference is rating: i Sound Level Meter at 4.4 against SuperpowerBMS's 2.3. i Sound Level Meter also leads on review sentiment (22% vs 0%) and ratings volume (38 vs 3). SuperpowerBMS's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, update cadence, in-app purchases and device support there is nothing between them.

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

i Sound Level Meter holds the better App Store score, 4.4 against 2.3. That said, the two scores are not equally well evidenced: i Sound Level Meter has 38 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 22% of i Sound Level Meter's written reviews are positive against 0% of SuperpowerBMS's.

i Sound Level Meter ships an update every 2 months, SuperpowerBMS every 5 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | i Sound Level Meter | SuperpowerBMS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (38 ratings)](https://appshunter.io/ios/app/i-sound-level-meter/id912170360/reviews)** | [2.3 (3 ratings)](https://appshunter.io/ios/app/superpowerbms/id1604163546/reviews) |
| Number of ratings | **38** | 3 |
| Positive reviews | **21.8% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Ad-supported | **Free** |
| Size | 7 MB | 53 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [EONSOFT](https://appshunter.io/developer/899851112) | [江西达伙网络科技有限公司](https://appshunter.io/developer/1234844673) |

## What reviewers say

### i Sound Level Meter

[App page](https://appshunter.io/ios/app/i-sound-level-meter/id912170360)

Measure the noise levels around you with this sound meter. Track maximum and minimum decibel values during your measurements. For the most accurate readings, consider using a high-performance noise meter.

**Highlights:** Measures ambient noise levels, Tracks maximum noise values, Tracks minimum noise values, Displays noise measurements

**Features:** Vision Pro support

**In-app purchases:** none


### SuperpowerBMS

[App page](https://appshunter.io/ios/app/superpowerbms/id1604163546)

Monitor your lithium battery pack's health and safety in real-time. View critical data like voltage, current, and temperature, along with individual cell status and charge/discharge switch states. An essential tool for managing battery systems.

**Highlights:** Real-time battery pack monitoring, Voltage, current, and temperature display, Individual cell voltage and status, Protection and alarm status, Charge/discharge switch status, Battery balance status

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is i Sound Level Meter free?

i Sound Level Meter is free to download, with no in-app purchases.

### Is SuperpowerBMS free?

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

### Which has better reviews, i Sound Level Meter or SuperpowerBMS?

i Sound Level Meter is rated higher. i Sound Level Meter averages 4.4 out of 5 from 38 ratings, while SuperpowerBMS averages 2.3 from 3 ratings.

### Do i Sound Level Meter or SuperpowerBMS have ads?

i Sound Level Meter shows ads; SuperpowerBMS does not.

### Which is updated more often, i Sound Level Meter or SuperpowerBMS?

i Sound Level Meter ships an update every 2 months, and SuperpowerBMS every 5 weeks. Most recently, i Sound Level Meter was updated on November 1, 2026 and SuperpowerBMS 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.*