Ooooo

Name: Ooooo
Rating: 4.8 (121 reviews)
Author: Pavlos Tsochantaris

By: Pavlos Tsochantaris

Brainwaves, without gimmicks.

Features & Capabilities

Ooooo is a straightforward, offline binaural beat generator for iOS and Apple Watch. It focuses on delivering target brainwave frequencies with minimal friction, no ads, and no data collection. The app is lightweight and unobtrusive: it generates binaural tones (and optional white or brown noise) and then steps out of the way.

Choose a frequency from the included chart to support sleep, meditation, relaxation, or a quick energy boost. It can run in the background, be used with your own audio, and works without an internet connection. A companion Apple Watch app lets you relax or focus on the go.

User Growth & Download Statistics

App Entertainment Privacy & Security Education

By:

Pavlos Tsochantaris

Rating:

4.80

(121)

Version:

1.1.3 Last updated: 2020-10-23

Version code:

838337217

Creation date:

2017-06-17

Compatible devices:

Size:

22.49MB

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-06

Compare stats and ranking:

Ranking

# 137,031 ▼ 175

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Pavlos Tsochantaris

Apple Apps Store

https://apps.apple.com/us/app/ooooo/id1244537282

Website:

http://www.bru.build/app/ooooo

User Reviews

Users consistently praise Ooooo for being free and ad-free, simple to use, and highly customizable. The app’s ability to mix with other audio and its clear, high-fidelity sounds make it popular for focus, meditation, and sleep. Recurring concerns center on background playback reliability and a common desire for saved presets. Overall, it’s a lightweight, effective tone generator that delivers core features without ads, while reviewers hope for small conveniences like presets and more robust background behavior.

Pros

Free and ad-free experience
Simple, lightweight interface with no bloat
Highly customizable frequencies, tones, and noise types
Can play music/podcasts simultaneously with the tones
High-quality, clear sounds good for focus, meditation, and sleep

Cons

Background playback is inconsistent across reviews: some report it runs in the background, others report it stops when the app sleeps

Recent reviews

Any way you could add some presets of the popular/most wanted frequencies? Or even a list of those frequencies so we can put it in ourselves?

by Da*****, 2026-04-29

If only it went to higher mhz and added a numerical input for precision. I almost feel like I should give 5 stars just for it being free! No ads! Yay!