# T vs Decibels Meter

The clearest difference is update cadence: Decibels Meter at every 9 days against T's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

T ships an update every 2 months, Decibels Meter every 9 days. The most recent releases landed on October 3, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | T | Decibels Meter |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 22.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | Free | — |
| Size | 17 MB | 27 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [江波 夏](https://appshunter.io/developer/895730400) | [剑 罗](https://appshunter.io/developer/1854272181) |

## What reviewers say

### T

[App page](https://appshunter.io/ios/app/t-sensor/id1457423534)

This app connects to nearby Bluetooth temperature sensors to display readings for temperature, humidity, air pressure, and altitude. It presents this data in both list and graph formats for easy monitoring.

**Highlights:** Scans nearby Bluetooth temperature sensors, Displays temperature, humidity, air pressure, altitude, Data presented in list view, Data presented in graph view, Connects to multiple sensor types

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

**In-app purchases:** none


### Decibels Meter

[App page](https://appshunter.io/ios/app/decibels-meter/id6755508693)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is T free?

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

### Is Decibels Meter free?

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

### Do T or Decibels Meter have ads?

Neither T nor Decibels Meter shows ads.

### Which is updated more often, T or Decibels Meter?

T ships an update every 2 months, and Decibels Meter every 9 days. Most recently, T was updated on October 3, 2026 and Decibels Meter on October 15, 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.*