AlekSound

AlekSound — Frequency Generator

A precision tone generator with a meditative soul.

AlekSound allows you to create "moods" where one or multiple frequencies and waveforms can work together to form a special sonic backdrop.

Turn your iPhone into a flexible audio frequency generator, from clinical precision to calming sound exploration.

Dial in any frequency

Set any frequency from 20 Hz to 12 kHz, down to the decimal. Enter an exact value or choose from 12 presets, tuned by default to the chromatic scale at concert pitch (A = 440 Hz). Save your own frequencies or polyphonic creations to a mood with a single tap.

Shape the tone

Blend sine, square, sawtooth, and triangle waveforms in any combination. Create everything from a clean test tone to a rich, layered drone.

Bend it live

Use the responsive pitch-bend slider to sweep the frequency in real time.

Draw your own pitch and pan curve

Trace a path with your finger—forward, backward, or anywhere in between. AlekSound transforms your gesture into a looping, breathing pitch animation with a soft glowing trail.

It's a sound tool and a meditative visual experience in one.

Save & share complete setups

Save your frequency, waveform blend, and drawn pitch curve to one of 6 save slots. Export complete setups as files to share your favorite sounds with others.

Built for real use

• Native output-device switching for speaker, AirPods, CarPlay, and more
• Smooth audio fades on every reset to prevent clicks and pops
• Clean, focused interface designed to stay out of your way

Whether you're a musician tuning by ear, experimenting with relaxation frequencies, exploring sound, or simply curious what 528 Hz actually sounds like, AlekSound gives you precise control—and a genuinely pleasant way to sit with a sound.

Record the output and send it to a friend, or why not share your polyphonic setups or interesting frequencies.

Hit the invert button and control a set of 12 frequency controlled notch filters over a slice of white noise.

You can also view the audio visualization by swiping left

Explore frequencies. Shape sound. Find your tone.