爆音ブースター　-広告一切無しで音量をブースト!!-

【What is Loud Sound Booster?】
This is a simple tool app that can amplify your smartphone's volume up to +30 dB.
It can be used immediately when you feel the sound is too quiet to hear, such as when watching videos, listening to music, or making phone calls.

No ads, no in-app purchases, and only about 40 MB of installation space.

It's a light and simple app with all unnecessary features removed.

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■ Main Features
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【Loud Sound Booster】
Amplifies volume within the range of 0 to +30 dB.

Adjust in real time by simply moving the slider.

The boost is automatically activated when you open the app.

【Preset Saving】
You can save frequently used volume settings with names.

It's convenient to use different settings for different situations, such as "For the train," "For home," or "For meetings."

Saved presets can be applied instantly with a tap.

[Home Screen Widget]
By placing the widget on your home screen, you can switch between presets with a single tap without opening the app.
It's useful in situations where you need to quickly change the volume, such as during your commute or while working.

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■ Completely Free, Ad-Free, Lightweight
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• No ads are displayed.
• There are no in-app purchases. All features are available for free.
• The file size is approximately 40MB, making it very lightweight. Works smoothly even on older devices
* No personal information is collected or transmitted.

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■ Recommended for:
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* Those who find the volume of videos and music too low on trains and buses
* Those who want to use different volume settings depending on the location and situation
* Those who find it troublesome to manually change the volume every time
* Those who want to operate it quickly from the home screen
* Those who are tired of volume apps with lots of ads

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■ How to Use
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1. Boost will be automatically enabled when you launch the app.
2. Adjust the volume to your liking using the slider.
3. It's convenient to save frequently used settings in "Presets".
4. Adding a widget to your home screen will make it even more convenient to use.

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■ About Permissions
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This app uses the following permissions:

• Change audio settings: Required for the loud volume booster function
• Foreground service: Required to maintain volume in the background
• Notifications: Used to display the status of the service while it is running (Android 13 and above)

We do not collect or transmit any personal information.