Apps that Just Work.
Simple. Reliable. Built for everyday users.
5M+
Global Downloads
4.8
Average Rating
12+
Popular Apps
180+
Countries Covered
Our Apps
Simple tools. Built to work.
Volume+: Volume Booster
A comprehensive volume booster app that enhances audio quality for music, videos, and calls on your Android device.
EQ+: Equalizer
Professional audio equalizer with multiple presets and customizable sound profiles for perfect music experience.
Bass+: Bass Booster
Powerful bass enhancement tool with deep customization options for music lovers who enjoy rich, deep sound.
Recorder+: Voice Recorder
High-quality voice recording app with noise reduction and easy sharing options for professionals.
Super Speaker Cleaner
The ultimate water eject app For both speakers and headphones.
Super Voice Changer
Change your voice to any voice effect you like and share with your friends.
Why Choose Us
No Learning Curve
Our apps are instantly usable. no manuals, no guesswork.
Lightweight & Fast
We cut out everything unnecessary so your phone runs smooth.
Pure Functionality
Every feature has a purpose. Nothing more, nothing less.
Globally Trusted
Users in 180+ countries rely on us for daily tools.
About Us
Since 2015, Lean StartApp has focused on one thing: creating apps that are easy to use and easy to love.
No bloat. No distractions. Just clean, functional tools that work.
Contact Us
User Reviews
"Best free volume booster, hands down. I've tried quite a few of them and this is the only one worth the space. Simple layout, does exactly what it says it will, minimal distortion up to 150% (PSA: Don't be using 200% on ANY booster, it'll damage your speakers/headphones), no invasive ads, no interrupting your music to pelt your ears with ads & no turning down volume on its own."
Terren B
Vomue+ User
"This is the best one I've found. It's 10 band instead of 5-7. It has great presets. Plus it says it uses ads but the only thing I've seen. Is a small banner at the very bottom of the screen. Instead of annoying full length ads that interrupt your music anyway. Every time you choose a new preset on the other apps it ads. Non stop!!! This is a great app."
Sonya Pitchforth
EQ+ User
"Nice and e cellent working to my phone like a big speaker good sound quality coz i used this apps thanks to maker more power"
jose nuguid
Bass+ User
"This app really works. I dropped my phone in a bucket of water but took it out immediately. Phone was working fine,but the speakers sounds were cracked up. It was not a major issue and I could live with that. But I thought let's try this app, although I didn't believe this would work. But it worked perfectly. Speakers sound as clear as before. Great app!"
Srijan Utkarsh
Super Speaker Cleaner User
Contact Us
Need help or want to share feedback? We're here to listen.
support@leanstart.app
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