8+ iOS apps curated and reviewed
From beginner-friendly picks to power-user tools, our 528i list covers 8+ iPhone apps updated through April 2026. Compare ratings, prices, and screenshots in one place.
This app guides users through laser therapy sessions with step-by-step instructions and instructional videos. It connects to a laser device to optimize timing, frequency, and application for photobiomodulation and low-level laser therapy.
This app uses precision-engineered binaural beats and isochronic tones to synchronize neural oscillations for enhanced brain performance, clarity, and recovery. It offers a spectrum of frequencies for focus, sleep, health, and spiritual exploration.
Test your device's audio output and microphone functionality. This app plays specific frequencies and measures decibel levels to help identify speaker issues or microphone obstructions. Upgrade for unlimited testing and an ad-free experience.
This app offers audio tools to enhance your device's sound. Generate custom sound waves, measure decibel levels, and even use an ultrasonic frequency generator. It also features customizable themes and an ad-free experience.
This app uses sound waves to vibrate your device's speaker, effectively removing dust, dirt, and water. It offers customizable cleaning frequencies and the ability to select which speakers to clean. A microphone test is also included to check for dirt.
Experience deep relaxation and healing with this sound frequency app. Choose between Alpha and Theta waves for tailored meditation and stress reduction. Set a timer for your desired session length.
Generate precise audio tones from 20 Hz to 20,000 Hz with various waveforms. Utilize binaural beats for meditation, sleep, and focus. Also includes a speaker cleaning function to improve audio quality.