# Flat Equalizer FX-Bass Booster — Bluetooth Speaker, Tone Player > Music player and audio testing tool for Bluetooth speakers and sound setups. (iPhone/iPad app by Thuy An Truong.) - Source: https://appshunter.io/ios/app/flat-equalizer-fx-bass-booster/id6752917770 (this page in markdown: same URL + `.md`) - Developer: [Thuy An Truong](https://appshunter.io/developer/1841770593) - Category: Music, Utilities - Price: Free with in-app purchases - Rating: 4.20/5 from 94 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 16.4 · 8 MB - Languages: American English - Released: 2025-09-24 - Data updated: 2026-08-27 - Monetization: subscription - User reviews in markdown: https://appshunter.io/ios/app/flat-equalizer-fx-bass-booster/id6752917770/reviews.md ## What is Flat Equalizer FX? Your simple tool to connect, play, and test sound. This app helps you manage your music and explore test tones with ease. Connect to your Bluetooth speaker, play tracks directly, and control your sound with basic tools. You can also generate clean tones to check your audio setup. Key Features: • Connect and control Bluetooth speakers • Play music from supported devices • Adjust equalizer, volume, and bass • Generate sine, square, triangle, saw tones • Test white noise and pink noise • Modern, clean, and easy-to-use interface All functions work directly on your device. No extra accounts required. Subscription & Auto-Renewal Information - Plans start at $6.99 per week or $19.99 per month including a 3-day free trial - 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 For more information: • App Center: https://sites.google.com/view/tta-app-center • Privacy Policy: https://sites.google.com/view/tta-app-center/privacy-policy • Terms of Use: https://sites.google.com/view/tta-app-center/term-of-use ## Key features - Bluetooth speaker connection and control - Music playback - Equalizer, volume, and bass adjustment - Test tone generation (sine, square, triangle, saw) - White and pink noise testing - Modern and easy-to-use interface ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Premium Access Weekly | $6.99 | per 7 days | | Premium Access Monthly | $19.99 | per month | ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/flat-equalizer-fx-bass-booster/id6752917770/reviews.md ### 1/5 — Makes you pay *2026-01-18* You do not get to use any features of the app at all unless you pay a weekly subscription ## Frequently asked questions about Flat Equalizer FX ### What is Flat Equalizer FX-Bass Booster used for? Flat Equalizer FX-Bass Booster is used to connect and control Bluetooth speakers, play music, adjust audio settings like equalizer and bass, and generate test tones for audio setup. ### Does Flat Equalizer FX-Bass Booster have ads? No, Flat Equalizer FX-Bass Booster does not contain advertisements. The app is free to download and offers a subscription for premium features. ### What are the subscription options for Flat Equalizer FX-Bass Booster? Flat Equalizer FX-Bass Booster offers subscription plans starting at $6.99 per week or $19.99 per month, which includes a 3-day free trial. ### How do I manage my subscription for Flat Equalizer FX-Bass Booster? You can manage your subscription by going to your device's Account Settings after purchase. Auto-renewal can be turned off at least 24 hours before the end of the current period. ### What types of test tones can Flat Equalizer FX-Bass Booster generate? Flat Equalizer FX-Bass Booster can generate sine, square, triangle, and saw tones, as well as test white noise and pink noise. ### Is Flat Equalizer FX-Bass Booster available on multiple devices? Based on the provided data, Flat Equalizer FX-Bass Booster is currently supported on iPhone devices. ### How often is Flat Equalizer FX-Bass Booster updated? The latest version of Flat Equalizer FX-Bass Booster was released on September 28, 2025, indicating recent updates. The app is on version 1.0.2. ### What is the user rating for Flat Equalizer FX-Bass Booster? Flat Equalizer FX-Bass Booster has a rating of 4.4 stars based on 36 ratings, suggesting a generally positive user experience. ## Version history (last 3 releases) ### 1.0.2 — 2025-09-28 – Bug fixes and performance improvements – Enhanced UI and smoother user experience – Updated app name and optimized keyword list Thank you for using the app and for your feedback. If you enjoy it, please consider leaving a review. ### 1.0.1 — 2025-09-25 – General bug fixes and improvements – Enhanced UI and user experience – Added support for in-app purchases Thank you for using the app and for your feedback. If you enjoy it, please consider leaving a review. ### 1.0.0 — 2025-09-24 No release notes. ## Apps similar to Flat Equalizer FX | App | Rating | Price | Category | | --- | --- | --- | --- | | [Equalizer+ Music amp & Podcast](https://appshunter.io/ios/app/equalizer-plus-music-amp-and-podcast/id814288775) | 4.0 (782) | Free | Music | | [HS Player - FLAC, EQualizer](https://appshunter.io/ios/app/hs-player-flac-equalizer/id857650606) | 4.3 (210) | Free | Music | | [Music Equalizer - Bass Booster](https://appshunter.io/ios/app/music-equalizer-bass-booster/id6761036802) | 4.3 (26) | Free | Music | | [Headphone Equalizer](https://appshunter.io/ios/app/headphone-equalizer/id6753087386) | 4.3 (28) | Free | Music | | [Equalizer Fx : Volume Booster](https://appshunter.io/ios/app/equalizer-fx-volume-booster/id1568042723) | 3.8 (41) | Free | Music | | [Bass Booster Volume Booster](https://appshunter.io/ios/app/bass-booster-volume-booster/id6711341566) | 4.6 (213) | Free | Music | ## More apps by Thuy An Truong - [Air Conditioner+Remote Wifi AC](https://appshunter.io/ios/app/air-conditioner-plus-remote-wifi-ac/id6753129196) All apps by Thuy An Truong: https://appshunter.io/developer/1841770593 ## Related topics [bluetooth equalizer speakers](https://appshunter.io/ios/topics/bluetooth-equalizer-speakers) · [flat equalizer](https://appshunter.io/ios/topics/flat-equalizer) · [flat equalizer bass booster](https://appshunter.io/ios/topics/flat-equalizer-bass-booster) · [equalizer player](https://appshunter.io/ios/topics/equalizer-player) · [equalizer app](https://appshunter.io/ios/topics/equalizer-app) · [equalizador maker](https://appshunter.io/ios/topics/equalizador-maker) · [equalizer](https://appshunter.io/ios/topics/equalizer) · [equalizer everywhere](https://appshunter.io/ios/topics/equalizer-everywhere) · [equalizer for iphone free bluetooth](https://appshunter.io/ios/topics/equalizer-for-iphone-free-bluetooth) · [speakers base](https://appshunter.io/ios/topics/speakers-base) · [bluetooth speaker equalizer](https://appshunter.io/ios/topics/bluetooth-speaker-equalizer) · [equalizer bluetooth](https://appshunter.io/ios/topics/equalizer-bluetooth) · [audio equalizer bluetooth](https://appshunter.io/ios/topics/audio-equalizer-bluetooth) · [equalizer for iphone free speaker](https://appshunter.io/ios/topics/equalizer-for-iphone-free-speaker) · [edit music equalizer](https://appshunter.io/ios/topics/edit-music-equalizer) · [equalizer bass](https://appshunter.io/ios/topics/equalizer-bass) · [music equalizer beats](https://appshunter.io/ios/topics/music-equalizer-beats) · [equalizer bass booster](https://appshunter.io/ios/topics/equalizer-bass-booster) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*