# Decibel vs TECDOFY

The clearest difference is in-app purchases: TECDOFY at none against Decibel's 15. Decibel's advantage is review sentiment (81% vs 50%) and update cadence (monthly vs every 7 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Decibel sells 15 in-app purchases, starting at $1.99 per 7 days. TECDOFY asks for nothing beyond the download.

Decibel ships an update monthly, TECDOFY every 7 months. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Decibel | TECDOFY |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (318 ratings)](https://appshunter.io/ios/app/decibel-db-noise-level-meter/id6464403884/reviews)** | — |
| Number of ratings | **318** | — |
| Positive reviews | **81.0% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 7 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 80 MB | 341 MB |
| Requires iOS | 13.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [EYWIN BILGI TEKNOLOJILERI ANONIM SIRKETI](https://appshunter.io/developer/1492105189) | [Sergio Enrique Echave Bastidas](https://appshunter.io/developer/1743103252) |

## What reviewers say

### Decibel

[App page](https://appshunter.io/ios/app/decibel-db-noise-level-meter/id6464403884)

Measure, analyze, and protect your hearing with this comprehensive sound level meter. It offers real-time decibel readings, noise exposure monitoring, and tools for audio exploration like frequency generation and speaker cleaning.

**Highlights:** Real-time sound level measurement (dB), Noise exposure monitoring (Dosimeter), Interactive recording and visualization, Frequency generator, Speaker cleaner, Frequency hearing test

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

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Grooz DB Meter Weekly | $1.99 | per 7 days |
| Weekly Decibel Meter | $2.99 | per 7 days |
| weekly premium | $3.99 | per 7 days |
| Weekly Premium | $3.99 | per 7 days |
| Weekly PRO Decibel | $4.99 | per 7 days |
| Monthly Decibel Meter | $5.99 | per month |
| Monthly Premium | $6.99 | per month |
| Unlimited Weekly PRO | $7.99 | per 7 days |
| Monthly Decibel Sonic PRO | $12.99 | per month |
| Special Yearly Premium | $12.99 | per year |
| Annual Decibel Meter | $29.99 | per year |
| Yearly Premium (B) | $39.99 | per year |
| Yearly Premium | $39.99 | per year |
| Yearly Decibel Sonic PRO | $44.99 | per year |
| Yearly premium pro | $59.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 📏 Accurate decibel meter
- 🔊 High sound level detection
- 👂 Healthy for ear
- 🏠 Useful for home noise levels

**What reviewers complain about**

- 🔋 High battery usage
- 💸 Difficult to cancel subscription
- 💳 Hidden charges after trial
- ⚠️ Dodgy subscription practices

**Reported bugs**

- Background activity drains battery
- Subscription cancellation not obvious

**Requested features**

- Clear cancellation instructions


### 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 free?

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

### Is TECDOFY free?

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

### Do Decibel or TECDOFY have ads?

Neither Decibel nor TECDOFY shows ads.

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

Decibel ships an update monthly, and TECDOFY every 7 months. Most recently, Decibel was updated on October 24, 2026 and TECDOFY on October 18, 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.*