# Decibel Reader vs My Solar RX

The clearest difference is rating: My Solar RX at 5.0 against Decibel Reader's 4.5. My Solar RX also leads on in-app purchases (none vs 6) and ads (none vs shown). Decibel Reader's advantage is ratings volume (24 vs 1). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Decibel Reader sells 6 in-app purchases, starting at $3.99 per 7 days. My Solar RX asks for nothing beyond the download.

My Solar RX holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Decibel Reader has 24 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Decibel Reader | My Solar RX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (24 ratings)](https://appshunter.io/ios/app/decibel-reader/id6451411046/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/my-solar-rx/id6766524994/reviews)** |
| Number of ratings | **24** | 1 |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 12 MB | 46 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Andy Sutanto](https://appshunter.io/developer/1659282966) | [Sunny Energy Solar](https://appshunter.io/developer/1896299316) |

## What reviewers say

### Decibel Reader

[App page](https://appshunter.io/ios/app/decibel-reader/id6451411046)

Measure ambient noise levels with real-time readings, tracking minimum, average, and maximum decibels. Offers calibration for accuracy and a dark mode for comfortable viewing. This tool helps you understand your sound environment.

**Highlights:** Real-time decibel measurement, Calibration for accuracy, Track min, average, and max noise levels, Dark mode for low-light use, Simple and intuitive interface

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Decibel Meter Pro - 1 Week | $3.99 | per 7 days |
| Decibel Meter Pro - 1 Month | $7.99 | per month |
| Sound Level Meter - 6 Months | $19.99 | per 6 months |
| Noise Level Meter - 1 Year | $29.99 | per year |
| Decibel Meter Pro - 1Y 2 | $29.99 | per year |
| dB Meter Pro | $49.99 | one-time |


### My Solar RX

[App page](https://appshunter.io/ios/app/my-solar-rx/id6766524994)

Monitor your solar system's performance in real-time with live power flow and energy production charts. Compare your system's output to neighbors and receive smart alerts for underperformance. Request service directly from the app to quickly address any issues.

**Highlights:** Real-time power flow monitoring, Daily energy production charts, Neighbor performance comparison, Smart underperformance alerts, Direct service request submission, Account management

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

**In-app purchases:** none


## Frequently asked questions

### Is Decibel Reader free?

Decibel Reader is free to download, with in-app purchases available.

### Is My Solar RX free?

My Solar RX is free to download, with no in-app purchases.

### Which has better reviews, Decibel Reader or My Solar RX?

My Solar RX is rated higher. Decibel Reader averages 4.5 out of 5 from 24 ratings, while My Solar RX averages 5.0 from 1 ratings.

### Do Decibel Reader or My Solar RX have ads?

Decibel Reader shows ads; My Solar RX does not.

### Which is updated more often, Decibel Reader or My Solar RX?

Decibel Reader ships an update every 2 weeks, and My Solar RX every 2 weeks. Most recently, Decibel Reader was updated on November 3, 2026 and My Solar RX on October 31, 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.*