# Low Frequency Detector vs Mobil t'Est

The clearest difference is review sentiment: Low Frequency Detector at 50% against Mobil t'Est's 0%. Mobil t'Est's advantage is price (Free vs $9.99) and device support (3 vs 1). On update cadence, ads and in-app purchases there is nothing between them.

Mobil t'Est is free to download; Low Frequency Detector costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Low Frequency Detector ships an update every 9 months, Mobil t'Est every 10 months. The most recent releases landed on October 6, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Low Frequency Detector | Mobil t'Est |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[2.8 (6 ratings)](https://appshunter.io/ios/app/low-frequency-detector/id1196584147/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 10 months |
| Monetization | Paid | **Free** |
| Size | 1 MB | 282 MB |
| Requires iOS | 26.2 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TOON,LLC](https://appshunter.io/developer/633948723) | [REGION GRAND EST](https://appshunter.io/developer/1515113626) |

## What reviewers say

### Low Frequency Detector

[App page](https://appshunter.io/ios/app/low-frequency-detector/id1196584147)

This tool measures and analyzes low-frequency sounds that are difficult for the human ear to detect. It helps identify potential noise pollution from sources like construction or factories, providing detailed reports on frequency components and sound levels.

**Highlights:** Low-frequency power level measurement (<100Hz), Audible band power level measurement (Leq), 1/3 octave band analysis (OCT), FFT analysis (FFT), Time course graph (TIME), Measurement report generation, Calibration function

**In-app purchases:** none


### Mobil t'Est

[App page](https://appshunter.io/ios/app/mobil-test/id1599299554)

This app allows users to report mobile service quality and coverage in their area. It collects data to create regional maps, helping to identify underserved zones and encourage operators to improve services. The goal is to enhance mobile accessibility and quality across the territory.

**Highlights:** Report mobile service quality, Map network coverage, Identify underserved areas, Contribute to regional data, Improve mobile accessibility

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Low Frequency Detector free?

Low Frequency Detector costs $9.99, with no in-app purchases.

### Is Mobil t'Est free?

Mobil t'Est is free to download, with no in-app purchases.

### Do Low Frequency Detector or Mobil t'Est have ads?

Neither Low Frequency Detector nor Mobil t'Est shows ads.

### Which is updated more often, Low Frequency Detector or Mobil t'Est?

Low Frequency Detector ships an update every 9 months, and Mobil t'Est every 10 months. Most recently, Low Frequency Detector was updated on October 6, 2026 and Mobil t'Est on October 4, 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.*