# Decibel Meter Plus vs Contacts Export CSV

The clearest difference is rating: Contacts Export CSV at 5.0 against Decibel Meter Plus's 3.0. Decibel Meter Plus's advantage is review sentiment (36% vs 0%) and ratings volume (125 vs 1). On price, ads, in-app purchases and device support there is nothing between them.

Decibel Meter Plus costs $2.99 and Contacts Export CSV $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Contacts Export CSV holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: Decibel Meter Plus has 125 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 36% of Decibel Meter Plus's written reviews are positive against 0% of Contacts Export CSV's, so the app with the better star average is not the one people write more warmly about.

Decibel Meter Plus ships an update every 6 weeks, Contacts Export CSV every 3 months. The most recent releases landed on October 15, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Decibel Meter Plus | Contacts Export CSV |
| --- | --- | --- |
| Price | $2.99 | $2.99 |
| Rating | [3.0 (125 ratings)](https://appshunter.io/ios/app/decibel-meter-plus/id648142711/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/contacts-export-csv/id6636469745/reviews)** |
| Number of ratings | **125** | 1 |
| Positive reviews | **35.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 14 MB | 1 MB |
| Requires iOS | 15.8 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [华芳 张](https://appshunter.io/developer/586041482) | [Apps4World](https://appshunter.io/developer/1633802880) |

## What reviewers say

### Decibel Meter Plus

[App page](https://appshunter.io/ios/app/decibel-meter-plus/id648142711)

Measure ambient sound levels and understand their impact on hearing. This app provides real-time decibel readings, exposure time guidelines, and information on noise-induced hearing loss. It helps you identify loud environments and learn how to protect your hearing.

**Highlights:** Measure sound levels, Display average, peak, and max values, Plotted history of average values, Information on NIHL, Decibel exposure time guidelines, Calibrate measurements, Record and export data

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use and simple interface
- 📊 Clear visual display with color-coded sound levels
- 🎯 Useful for comparative measurements
- 📈 Includes graphical strip chart functionality
- ⚡ Responsive and quick performance

**What reviewers complain about**

- ❌ Severely inaccurate decibel readings
- 📍 Consistently reads 10-50 dB higher than actual levels
- 🔧 No calibration function available
- 🐛 Doesn't return to 0 dB in silent conditions
- 📱 Requires app updates and iOS compatibility fixes

**Reported bugs**

- App requires developer updates and iOS compatibility fixes
- Baseline reading of 50-80 dB even in complete silence
- Readings spike dramatically with minimal sound input
- Graph display lacks user control
- Inconsistent measurements in same environment

**Requested features**

- Calibration function to adjust readings
- Higher maximum dB limit (120+ dB) for loud events
- Ability to attach photos with meter readings
- Better baseline reset to 0 dB in silence
- dB(A) weighting filter option


### Contacts Export CSV

[App page](https://appshunter.io/ios/app/contacts-export-csv/id6636469745)

Easily back up, export, and clean your contacts. This app helps you find duplicates, organize by birthdays, and export data in various formats. It works offline and prioritizes your privacy.

**Highlights:** Backup and export contacts, Find and remove duplicate contacts, Group contacts by birthdays, Export to CSV, Excel, JSON, vCard, Works offline and securely on-device, See recently added contacts

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Decibel Meter Plus free?

Decibel Meter Plus costs $2.99, with no in-app purchases.

### Is Contacts Export CSV free?

Contacts Export CSV costs $2.99, with no in-app purchases.

### Which has better reviews, Decibel Meter Plus or Contacts Export CSV?

Contacts Export CSV is rated higher. Decibel Meter Plus averages 3.0 out of 5 from 125 ratings, while Contacts Export CSV averages 5.0 from 1 ratings.

### Do Decibel Meter Plus or Contacts Export CSV have ads?

Neither Decibel Meter Plus nor Contacts Export CSV shows ads.

### Which is updated more often, Decibel Meter Plus or Contacts Export CSV?

Decibel Meter Plus ships an update every 6 weeks, and Contacts Export CSV every 3 months. Most recently, Decibel Meter Plus was updated on October 15, 2026 and Contacts Export CSV on October 12, 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.*