Zynth vs zensoundlab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Zynth
This app transforms your device into an expressive electronic instrument. Create unique soundscapes using touch, tilt, and motion with an intuitive interface. It offers multiple waveforms, built-in effects, and dynamic visualizations.
- Gesture-based sound control
- Multiple waveforms (sine, square, triangle, sawtooth)
- Built-in audio effects (echo, pitch, modulation)
- Dynamic visualization
- Customizable themes
- Beginner-friendly and advanced options
Read full descriptionHide full description
Transform your device into an expressive electronic instrument that responds to touch, tilt, and motion. Create hypnotic soundscapes with an intuitive interface inspired by the theremin and modern synthesis techniques. Features: - Gesture-based sound control with responsive visual feedback - Multiple waveforms: sine, square, triangle, and sawtooth - Built-in audio effects including echo, pitch, and modulation - Dynamic visualization that moves with your music - Dark and light themes with customizable color palettes - Simple enough for beginners, deep enough for experienced musicians - Create and perform anywhere - no external equipment needed Perfect for: - Musicians seeking a new creative tool - Sound designers and experimenters - Visual artists exploring audio - Anyone interested in music creation Download now and start your sonic journey! This app was my submission to the Swift Student Challenge 2025.
zensoundlab
Create personalized audio therapy sessions with real-time generation of binaural beats, noise colors, and pure tones. Customize frequency, spectrum, and layer sounds for focus, sleep, or relaxation. Features a smart sleep timer and optional responsive visuals.
- Real-time binaural beat generation (0.5-40 Hz)
- Customizable noise colors (white, pink, brown, blue, violet)
- Pure tones and Shepard tones
- Layered sound sessions
- Pre-set therapy sessions
- Smart sleep timer with Lock Screen integration
- Responsive visuals
Read full descriptionHide full description
Your own audio therapy. ZenSoundLab generates binaural beats, noise colours and pure tones in real time, and lets you layer them into a session you control down to the hertz. WHAT YOU CAN BUILD • Binaural beats from 0.5 to 40 Hz across the Delta, Theta, Alpha, Beta and Gamma bands, on a dial that gives the low frequencies the room they need • Noise in white, pink, brown, blue and violet — or shape your own spectrum • Pure tones, and rising or falling Shepard tones • Stack as many layers as you like, each with its own level SESSIONS TO START FROM Focus, Deep Sleep, Relaxation, Study Session, Settling, Paced Breathing, Alternating Pan, and the plain noise colours. Load one, then change anything about it. THE SLEEP TIMER Set it and the session winds down over its final 30 seconds rather than stopping dead. It runs on your Lock Screen and in the Dynamic Island, counting down on its own, with a pause button that works without opening the app. VISUALS, IF YOU WANT THEM Four generated visuals that respond to what you are actually hearing, or your own looping video. Or turn them off entirely. FREE, AND SELLING YOU NOTHING Apps in this category commonly charge around $60 a year. ZenSoundLab is free. No subscription, no in-app purchases, no ads, and no data collection of any kind — there is no account and no analytics. Binaural beats need headphones to work, and the app tells you when they are required.
Screenshots
Verdict
The clearest difference is rating: zensoundlab at 5.0 against Zynth's 3.0. On price, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
zensoundlab holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
| Parameter | Zynth | zensoundlab |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | — | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.3 — better | 18.0 |
| Further details — not scored | ||
| Size | 19 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Philipp Ollmann | PracticallyZen, LLC |
Customer experience
Zynth
zensoundlab
In-app purchases
Zynth
No in-app purchases
zensoundlab
No in-app purchases









