Zynth vs HotMix Listen
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
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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.
HotMix Listen
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HotMix turns an iPhone or iPad into a personal monitor mixer for production sound — no belt pack required. It connects to the HotMix Server on your Mac and streams up to 32 live channels over local Wi-Fi. Everyone on the crew mixes their own blend on their own device, so the producer's mix and the boom op's mix can look nothing alike. WHAT YOU CAN DO • Tap a tile to drop a channel into your mix. Long-press for a fader. Taps respond right away — every channel is already streaming, so nothing waits on the network. • Read live captions of what each mic is saying, transcribed on the server. Because each channel is one mic, the speaker labels are exact — no guessing who said what. • Save a mix as a Scene and bring it back with one tap. Handy when you jump between an interview setup and a wide. • Star the channels you care about to pin them to the top, and sort the grid the way you work. • On iPad, Auto tile size goes compact for big casts, so 32 channels still fit on one screen. • On iPhone, captions keep running on the Lock Screen and Dynamic Island while the app is in the background. You decide whether a locked screen shows full dialogue or just the speaker's name. • A jitter buffer, adjustable from 40 to 200 ms, rides out Wi-Fi hiccups, and the app reconnects on its own if the signal drops. There's no login, no account, and nothing leaves your network. HotMix finds the server automatically once you're on the same Wi-Fi. HotMix needs the HotMix Server companion app for macOS and a local Wi-Fi network. Use wired headphones or in-ear monitors for the lowest latency — Bluetooth adds too much delay for monitoring.
Screenshots
Verdict
Zynth and HotMix Listen are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
| Parameter | Zynth | HotMix Listen |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | — | Every 2 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.3 | 17.0 — better |
| Further details — not scored | ||
| Size | 19 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Philipp Ollmann | SetSync Central |
In-app purchases
Zynth
No in-app purchases
HotMix Listen
No in-app purchases









