# UAP Whistle — Universal Audio Pilot

> Universal Audio Pilot (iPhone/iPad app by Stefan Hollekamp.)

- Source: https://appshunter.io/ios/app/uap-whistle/id6745006540 (this page in markdown: same URL + `.md`)
- Developer: [Stefan Hollekamp](https://appshunter.io/developer/310105804)
- Category: Entertainment, Photo & Video
- Price: $4.99
- Age rating: 4+
- Requires: iOS 17.0 · 7 MB
- Languages: American English, German (Germany)
- Released: 2025-05-05
- Data updated: 2026-10-14

## What is UAP Whistle?

UAP Whistle – Universal Audio Pilot – is a precision signal generator and mixer for your Mac. Build your own audio signals from ready-made layers or from scratch, mix them like on a studio console and verify every frequency with the built-in oscilloscope and spectrum analyzer.

BUILT LIKE A MIXING CONSOLE
Every signal gets its own channel strip: live waveform preview, parameters, pan, mute and solo, plus a level fader in dB with a stereo meter. A master section with soft limiter keeps the mix clean. Up to 24 channels.

SIX SIGNAL TYPES
• Tone – sine, triangle, square or sawtooth from 0.5 Hz to 22 kHz
• AM Tone – carrier with adjustable modulation rate and depth
• Binaural – separate left and right frequencies for binaural beats
• Noise – white, pink or brown, with optional slow "breath" modulation
• Pulse – tone bursts with exact length and interval, optionally randomized
• Sweep – linear or logarithmic, single-shot or continuous loop

READY-MADE SIGNALS
Pilot Tone 1.6 kHz, Schumann Resonance (7.83 Hz), Solfeggio 528 Hz, Ambient 432 Hz, Ultrasonic Ping 17 kHz, Organic Chirp, Breath, Pink Noise, Reference 1 kHz, Sine Sweep 20 Hz–20 kHz, Low-Frequency Test 7.83 Hz and Binaural Alpha 10 Hz – or create your own with any frequency you need.

PRECISION YOU CAN MEASURE
• 64-bit phase accumulators keep frequencies exact, even during long sessions
• Sample-accurate timing for pulses and sweeps
• Band-limited oscillators – no aliasing on square and sawtooth waves
• The fader value equals the output level in dBFS
• Type in every value precisely: frequency, time, depth or level
• Smooth, click-free start, stop and parameter changes

SEE WHAT YOU HEAR
The visualizer analyzes the real output signal: a triggered oscilloscope with selectable time window and a live spectrum analyzer with exact peak frequency and level readout – ideal for checking and calibrating your setup.

SCENES & RECORDING
• Demo scenes to start instantly: Signal Demo, Schumann Meditation, Alpha Focus, Calibration 1 kHz −20 dBFS, Resonance Sweep and Low-Frequency Test
• Save your own mixes as scenes, import and export them as files
• Your last session is restored automatically
• Record the output as WAV (24-bit, stereo)

MADE FOR
Sound engineers, acousticians and engineers testing rooms, speakers and resonances – and anyone who wants to create calming soundscapes with Schumann, Solfeggio and binaural frequencies.

GOOD TO KNOW
• Very low frequencies such as 7.83 Hz are infrasound and cannot be reproduced by most speakers. The Schumann channel therefore applies 7.83 Hz as an amplitude modulation to an audible carrier.
• Binaural beats require headphones.
• Please protect your hearing and start at a low volume. High-frequency signals may be unpleasant for pets.
• UAP Whistle is an audio tool, not a medical device.

Available in English and German.

## Is UAP Whistle safe?

Not enough ratings yet to assess UAP Whistle.

## Is UAP Whistle legit?

UAP Whistle appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for UAP Whistle is 73 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 4.1 — 2026-10-14

No release notes.

## More apps by Stefan Hollekamp

- [SyncTaskBar](https://appshunter.io/ios/app/synctaskbar/id6744938402)
- [Smart GreenScreen](https://appshunter.io/ios/app/smart-greenscreen/id6745527862)
- [Smart Archive](https://appshunter.io/ios/app/smart-archive/id6791258574)
- [SmartBreakdown](https://appshunter.io/ios/app/smartbreakdown/id6802088028)

All apps by Stefan Hollekamp: https://appshunter.io/developer/310105804

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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 2026-10-14.*