# Pulse Lab: White Noise & Focus — Isochronic tones for sleep

> Isochronic tones for sleep (iPhone/iPad app by Ali3N Studios LLC.)

- Source: https://appshunter.io/ios/app/pulse-lab-white-noise-and-focus/id6760435185 (this page in markdown: same URL + `.md`)
- Developer: [Ali3N Studios LLC](https://appshunter.io/developer/1881815512)
- Category: Health & Fitness, Music
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 4 MB
- Languages: American English
- Released: 2026-03-12
- Data updated: 2026-08-27
- User reviews in markdown: https://appshunter.io/ios/app/pulse-lab-white-noise-and-focus/id6760435185/reviews.md

## What is Pulse Lab?

Built for deep work, not background music.
 
Pulse Lab is a minimal, distraction-free audio app designed to help you focus, study, and get into flow. Isochronic tones and high-quality color noise — nothing else. No playlists to scroll, no feeds, no clutter.
 
Pick a session, press play, and work.
 
BUILT FOR FOCUS
 
Isochronic tones across a range of frequencies, from slow and steady to alert. White, pink, brown, and other color noise for masking distractions. Long-session support that stays running through hours of work. Real-time playback visualization.
 
HOW PEOPLE USE IT
 
Deep work sessions and coding sprints. Studying for exams or certifications. Writing, designing, and creative flow. Meditation and mindfulness breaks. Wind-down and relaxation after work.
 
OFFLINE AND DATA-FRIENDLY
 
Download sound packs once and play offline forever. Wi-Fi-only download option to save mobile data. No streaming required during sessions.
 
INTENTIONALLY SIMPLE
 
No accounts. No social features. No feeds, no recommendations, no clutter. An optional upgrade removes ads for uninterrupted sessions.
 
ABOUT YOUR DATA
 
No account, no profile, nothing to sign up for. The free version shows ads through Google AdMob, which uses an advertising identifier, and anonymous crash and usage reports through Google Firebase help me fix what breaks. That is the extent of it — nothing about which sounds you play or when goes anywhere.
 
Headphones recommended for the full isochronic effect.
 
Pulse Lab is for people who want their focus audio to get out of the way and let them do the work.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| Pro Unlock | $4.99 | one-time |



## Version history (last 5 releases)

### 2.0.0 — 2026-08-17

A calmer Pulse Lab. 

NEW LOOK
Deep navy and teal replace the old red-on-black. Red is the colour of alarms, which was never right for an app you open to focus, wind down or fall asleep. The audio visualization, buttons and highlights all move to the new palette.

NEW ICON
Matches the new look.

NEW NAME
The app is now simply Pulse Lab.

EASIER TO READ
Several labels sat too close in tone to the background and were hard to read. Every text and background pairing in the app has been measured against WCAG contrast standards and corrected.

Nothing about how the app works has changed. Same one-time upgrade, no subscription, and everything you have downloaded still plays offline.

### 1.1.2 — 2026-05-06

App store listing update

### 1.1.1 — 2026-03-27

Updated screenshots
Added a "More Apps" link in settings

### 1.1 — 2026-03-17

Added marketing URL.

### 1.0 — 2026-03-12

No release notes.

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| [Isochronic Tone Generator](https://appshunter.io/ios/app/isochronic-tone-generator/id6774207589) | — | Free | Health & Fitness |

## More apps by Ali3N Studios LLC

- [OneGo: Private Restroom Finder](https://appshunter.io/ios/app/onego-private-restroom-finder/id6759943504)
- [EyeShot: Iris Camera & Editor](https://appshunter.io/ios/app/eyeshot-iris-camera-and-editor/id6760573387)
- [R3son8: Binaural Beats & Sleep](https://appshunter.io/ios/app/r3son8-binaural-beats-and-sleep/id6760603102)
- [EV Load Calc - NEC Compliant](https://appshunter.io/ios/app/ev-load-calc-nec-compliant/id6760872693)
- [PhotoLens: Astro Photo Editor](https://appshunter.io/ios/app/photolens-astro-photo-editor/id6761318474)

All apps by Ali3N Studios LLC: https://appshunter.io/developer/1881815512

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*