# Decibel Meter vs TECDOFY

The clearest difference is in-app purchases: TECDOFY at none against Decibel Meter's 10. TECDOFY also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). Decibel Meter's advantage is review sentiment (81% vs 50%) and update cadence (every 2 weeks vs every 7 months). On price and device support there is nothing between them.

Both are free to download. Decibel Meter sells 9 in-app purchases, starting at $3.99 per 7 days. TECDOFY asks for nothing beyond the download.

Decibel Meter ships an update every 2 weeks, TECDOFY every 7 months. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Decibel Meter | TECDOFY |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (350 ratings)](https://appshunter.io/ios/app/decibel-meter-sound-db/id1583767670/reviews)** | — |
| Number of ratings | **350** | — |
| Positive reviews | **81.5% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 7 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 51 MB | 341 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [OV MEDIA](https://appshunter.io/developer/1634593107) | [Sergio Enrique Echave Bastidas](https://appshunter.io/developer/1743103252) |

## What reviewers say

### Decibel Meter

[App page](https://appshunter.io/ios/app/decibel-meter-sound-db/id1583767670)

Transform your device into a professional decibel meter to measure and track sound levels in real-time. Save measurements, view history charts, and set custom alerts for excessive noise. Useful for documenting sound exposure or identifying noise sources.

**Highlights:** Real-time decibel meter, Save and export noise measurements, Noise history charts, Customizable noise alerts, Offline functionality, SPL meter

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Noise Level Premium | $3.99 | per 7 days |
| Noise Level Premium | $3.99 | per 7 days |
| Noise Level Premium | $4.99 | per 7 days |
| Noise Level Premium | $7.99 | per 7 days |
| Noise Level Premium | $9.99 | per 7 days |
| Noise Level Premium | $14.99 | per 7 days |
| Noise Level Premium | $14.99 | per 7 days |
| Noise Level Premium | $19.99 | per year |
| Noise Level Premium | $49.99 | per year |

**What reviewers like**

- 👍 Accurate measurements
- 🚀 Easy to use
- 📊 Detailed data tracking
- 🔔 Helpful alerts
- 🔍 Versatile monitoring

**What reviewers complain about**

- 💰 Expensive subscription
- 🐛 Inconsistent readings
- 🤔 Questionable accuracy

**Reported bugs**

- Unresponsive in loud environments
- Erratic gauge behavior

**Requested features**

- Reset measurement history
- Customizable alert thresholds
- Expanded data export options


### TECDOFY

[App page](https://appshunter.io/ios/app/tecdofy/id6499293029)

This app allows you to replace physical keys with Bluetooth access. Generate and share digital keys or passwords remotely to grant access to visitors. It also logs all entry and exit activities for enhanced security.

**Highlights:** Bluetooth key replacement, Generate digital keys, Create keyboard passwords, Remote lock control, Activity logging, Visitor access management

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Decibel Meter free?

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

### Is TECDOFY free?

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

### Do Decibel Meter or TECDOFY have ads?

Decibel Meter shows ads; TECDOFY does not.

### Which is updated more often, Decibel Meter or TECDOFY?

Decibel Meter ships an update every 2 weeks, and TECDOFY every 7 months. Most recently, Decibel Meter was updated on November 7, 2026 and TECDOFY on November 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.*