About this app
Tune Your 4-String Bass with Precision 4 String Bass Tuner is a fast, accurate, and easy-to-use tuner designed specifically for 4-string bass guitars. Whether you're practicing at home, rehearsing with a band, recording in the studio, or performing live, this tuner helps you stay perfectly in tune. The app supports standard 4-string bass tuning (E-A-D-G) and works with both active and passive bass guitars using your device's built-in microphone. Features • Accurate real-time pitch detection • Designed specifically for 4-string bass guitars • Supports standard tuning (E-A-D-G) • Alternate tuning support • Chromatic tuning mode • Visual tuning meter for easy tuning • Adjustable reference pitch (A4) • Built-in metronome for practice sessions • Chord detector tool • Works offline with no internet required • Clean and simple interface • Fast tuning response Perfect For • Beginner bass players • Intermediate musicians • Professional bassists • Band rehearsals • Live performances • Recording sessions • Music practice and lessons Supported Tunings • Standard 4 String Bass (E-A-D-G) • Drop D Tuning (D-A-D-G) • Alternate Bass Tunings • Custom Tunings Whether you play rock, metal, jazz, funk, blues, gospel, worship, or any other genre, 4 String Bass Tuner provides reliable and accurate tuning whenever you need it. Download now and keep your bass perfectly in tune. [Standard Apple Terms of Use (EULA)](https://www.apple.com/legal/internet-services/itunes/dev/stdeula/)]
Latest release
What’s New
- Added Left-Hand Mode for a more comfortable playing experience. - Choose your preferred note naming system, including C, D, E and Do, Re, Mi. - Refreshed the Tools and Learn tabs with a cleaner, more intuitive design. - Fixed bugs and improved overall performance and stability.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 20, 2026 · 1:29 AM Free