gStrings Alternatives for iPhone

APTuner is a sophisticated chromatic tuner for your computer, tablet, and phone.

Tunable is a chromatic tuner, tone/chord generator and metronome that helps you learn to play steadily, in tune, and on beat. Featuring a unique “tuning history” display for visualizing pitch over time, Tunable is the perfect toolkit for professional and beginning musicians.

Hands-free tuning for guitar and other acoustic instruments. Designed for novices and pros, fully featured, 100% free, no ads, no spammy promotions, no sales pitch, no network access, easy to use, advanced features for pro users, all features included for free.

PitchPerfect is a easy to use and simple guitar tuner. PitchPerfect eliminates the need of tuning a guitar conventionally and will automatically detect the note you are playing. You can simply tune your strings quickly & easily to any note you want!.

Tuner T1 is a simple and straightforward chromatic tuner for virtually any instrument including guitar, violin, viola and bass. It also includes a helpful Tone Generator so you can play any music note as reference for tuning.

Wave Generator is an easy-to-use app that can play various types of waves including sine wave from 20Hz to 20kHz. Moreover it can play many chords.

Pro Guitar Tuner is developed by the team behind the popular online guitar tuner on Pro Guitar.

Kala Ukulele Tuner & Learn Uke is a comprehensive app designed for both beginners and advanced players, providing ukulele tuning capabilities, lessons, a songbook, and a unique color chord system to facilitate easy learning of ukulele songs.