Zynth vs Neoharp
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.
Neoharp
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Official app for the Neoharp musical instrument. Fine-tune your sound across all three channels — Chord Buttons, Bass, and Tone Keys — with flexible, per-channel controls. Connect your Neoharp to your iPhone or iPad (via USB-C), open the app, and let your ideas flow. What you can do in the app: - Balance the volume of each channel with the built-in mixer. - Choose Chord Buttons behavior: play the chord tones on press, or switch harmony silently (no chord playback). - Disable/enable the Bass voice. - Set chord voicing and range: define the playable range, toggle inversions on or off, and choose the lowest reference note (note offset). - Toggle sustain on/off; connect an external pedal to control note sustain with your foot. And that’s not all — more features are coming in future updates! Requirements: - A Neoharp instrument is required for full functionality. Questions or feedback: neoharp@neoharp.com
Screenshots
Verdict
The clearest difference is iOS requirement: Neoharp at 13.0 against Zynth's 17.3. On price, ads, in-app purchases and device support 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.
| Parameter | Zynth | Neoharp |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | — | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.3 | 13.0 — better |
| Further details — not scored | ||
| Size | 19 MB | 79 MB |
| Age rating | 4+ | 4+ |
| Developer | Philipp Ollmann | Neoharp L.L.C-FZ |
In-app purchases
Zynth
No in-app purchases
Neoharp
No in-app purchases








