# Thermal Light vs dB Meter & Spectrum Analyzer

The clearest difference is price: Thermal Light at $1.99 against dB Meter & Spectrum Analyzer's $29.99. Thermal Light also leads on in-app purchases (none vs 1) and update cadence (weekly vs every 4 months). dB Meter & Spectrum Analyzer's advantage is rating (4.7 vs 2.3) and ratings volume (866 vs 6). On ads there is nothing between them.

Thermal Light costs $1.99 and dB Meter & Spectrum Analyzer $29.99 up front. dB Meter & Spectrum Analyzer sells 1 one-off in-app purchase. Thermal Light asks for nothing beyond the download.

dB Meter & Spectrum Analyzer holds the better App Store score, 4.7 against 2.3. That said, the two scores are not equally well evidenced: dB Meter & Spectrum Analyzer has 866 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 50% of Thermal Light's written reviews are positive against 66% of dB Meter & Spectrum Analyzer's.

Thermal Light ships an update weekly, dB Meter & Spectrum Analyzer every 4 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Thermal Light | dB Meter & Spectrum Analyzer |
| --- | --- | --- |
| Price | **$1.99** | $29.99 |
| Rating | [2.3 (6 ratings)](https://appshunter.io/ios/app/thermal-light/id476998738/reviews) | **[4.7 (866 ratings)](https://appshunter.io/ios/app/db-meter-and-spectrum-analyzer/id733773616/reviews)** |
| Number of ratings | 6 | **866** |
| Positive reviews | 50.0% of reviews | **65.8% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 4 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 2 MB | 88 MB |
| Requires iOS | 16.6 | **11.3** |
| Devices | iPhone | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Crystal Clear Solutions](https://appshunter.io/developer/444062170) | [Vlad Polyanskiy](https://appshunter.io/developer/438646985) |

## What reviewers say

### Thermal Light

[App page](https://appshunter.io/ios/app/thermal-light/id476998738)

This app measures the temperature of extremely hot objects by analyzing the light they emit. It's designed for users working with materials like iron, steel, and copper, offering a cost-effective alternative to specialized thermometers.

**Highlights:** Measures temperatures from 1000F to 2700F, Uses black body radiation analysis, Calibrated against certified IR thermometer, Cost-effective alternative to IR thermometers, Supports iron, steel, and ceramics

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

**In-app purchases:** none


### dB Meter & Spectrum Analyzer

[App page](https://appshunter.io/ios/app/db-meter-and-spectrum-analyzer/id733773616)

Measure ambient noise levels with professional-quality accuracy. This app offers a spectrum analyzer, hearing test, and the ability to save and share measurements with location data. It's a powerful, cost-effective tool for personal sound monitoring.

**Highlights:** Professional-quality sound level measurement, Integrated spectrum analyzer, Noise dosimeter (NIOSH/OSHA), Photo & video with noise overlay, Hearing test, Save and export measurements (CSV/Audio), Health App integration

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spectrum Analyzer Pro | $14.99 | one-time |

**What reviewers like**

- 🚀 Excellent
- 👍 Simple, precise and excellent
- 👍 Great app!!!!
- 👍 Well around app for monitoring noise
- 👍 Nice proof

**What reviewers complain about**

- 🐛 Crash with iOS 26
- 🐛 Paid for and it stopped working
- 🐛 App failed to open on iPad Pro 11
- 🐛 Will not run
- 🐛 Ok for DB but not for actually recording sound

**Reported bugs**

- Crash with iOS 26
- App failed to open on iPad Pro 11
- Will not run
- Video is recorded without sound
- Failing to restore purchase

**Requested features**

- Dark mode option
- Advanced analytics dashboard
- Ability to export recorded audio clips
- Frequency display on RTA bar


## Frequently asked questions

### Is Thermal Light free?

Thermal Light costs $1.99, with no in-app purchases.

### Is dB Meter & Spectrum Analyzer free?

dB Meter & Spectrum Analyzer costs $29.99, and also offers in-app purchases.

### Which has better reviews, Thermal Light or dB Meter & Spectrum Analyzer?

dB Meter & Spectrum Analyzer is rated higher. Thermal Light averages 2.3 out of 5 from 6 ratings, while dB Meter & Spectrum Analyzer averages 4.7 from 866 ratings.

### Do Thermal Light or dB Meter & Spectrum Analyzer have ads?

Neither Thermal Light nor dB Meter & Spectrum Analyzer shows ads.

### Which is updated more often, Thermal Light or dB Meter & Spectrum Analyzer?

Thermal Light ships an update weekly, and dB Meter & Spectrum Analyzer every 4 months. Most recently, Thermal Light was updated on October 23, 2026 and dB Meter & Spectrum Analyzer on October 24, 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.*