Volume Booster – Sound Booster

Enjoy a clean and powerful audio experience designed for effortless control.

Easily connect to your favorite Bluetooth speakers or headphones and fine-tune your sound with built-in volume, EQ, and bass adjustments — all processed directly on your device.

For more advanced users, an optional offline Tone Lab lets you test and shape frequencies using simple tone and sweep tools. Perfect for quick checks, calibration, or experimenting with different setups.

Key Features:

• Connect and play through Bluetooth

• Adjust system volume, EQ, and bass levels

• Smooth, optimized playback on-device

• Offline Tone Lab for frequency and tone testing

• No sign-in required, no data collected

Information about the auto-renewal of subscription

- Pricing starts at $4.99 per week, $9.99 per month, or $19.99 for 3 months.

- Payment will be charged to iTunes Account at confirmation of purchase

- Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period

- Account will be charged for renewal within 24-hours prior to the end of the current period. The cost depends on the selected plan

- Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase

- Any unused portion of the free trial will be forfeited when the user purchases a subscription

To learn more, please visit:

Terms of Use

https://telegra.ph/Term-Of-Use-10-13

Privacy Policy

https://telegra.ph/Privacy-Policy-10-13-302

Contact Us

https://telegra.ph/Contact-Us-10-13-2