If you already know Guitar Tuner!, this is the deeper bench. 4+ peter deelstra apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of October 2026.
This app provides an accurate audio and visual guitar tuner with a simple interface. It helps you see pitch changes in real-time and shows how many cents a note is out of tune. Supports standard and alternate tunings.
What We Love
👍 Easy to use
🚀 Quick way to check tuning
🎨 Excellent design and performance
💯 Accurate and precise
🎸 Works great for guitars and other instruments
🔍 Helpful visual feedback
📚 Lots of tuning options and settings
Room to Improve
🐛 Occasionally stops working or freezes
🔊 Struggles to pick up certain strings (e.g. low E)
Create and play a wide range of audio tones with adjustable frequencies and waveforms. Generate up to 12 simultaneous tones with individual volume control. Modify tones in real-time for versatile sound generation.
