Volume Booster – Sound Booster
Bluetooth Music & EQ Tool
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
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
We’ve fixed small bugs, improved overall performance, and updated the app name and keyword list for better discovery and a smoother experience. Thank you for your continued support!
The developer, Bung Bien Vu, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Bung Bien Vu
- Size
- 90 MB
- Category
- Music
- Compatibility
Requires iOS 16.1 or later.
- iPhone
Requires iOS 16.1 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Premium Access Weekly $4.99
- Premium Access Monthly $9.99
- Premium Access 3-Months $19.99
- Copyright
- © 2025 BtSpeaker