Bat Detector vs Detector.

Simply connect an inexpensive ultrasonic USB microphone to your iPhone or iPad and open your ears up to the extraordinary world of bat acoustics.  Build a dedicated USB microphone for under £10 : https://shorturl.at/e2A3U - : or buy one pre-assembled and tested for about £65 that also operates as a standalone bat detector https://www.apodemus.eu/nl/Apodemus-Pipistrelle-Mini/00126 All European bats and most of the world's "microbats" navigate, hunt and communicate using ultrasonic sounds, too high-pitched for human hearing. Bat Detector reveals those sounds to human ears, and has two different methods to make ultrasonic bat sounds audible.  HETERODYNE BAT DETECTION WITHOUT MANUAL TUNING Firstly, Bat Detector supports the classic technique of heterodyne bat detection. Heterodyning is a simple process that operates in true real-time, demodulating the bat sounds with a carrier signal just like an old transistor radio. Most heterodyne bat detectors require you to manually tune into different species, but Bat Detector operates without any manual tuning, instead it tunes into the strongest bat signal it can hear. The heterodyne process then turns any bats sounds it hears into percussive cracks, pops and slaps, or in the specific case of leaf-nosed bats such as Horseshoe species, strange alien warbles. These are often thought of as "bat sounds" - they are not. They are sounds synthesised by bat detectors using bat sounds as a source - rhe harmonic content of heterodyned sounds is distorted and mangled, and these sounds bear literally no relationship to the sounds the bats actually made. However, operating in true real-time means that the rhythm of the bats calls is preserved, and heterodyned bat sounds - despite sounding nothing like bats - are diagnostic and distinctive, so heterodyning remains an invaluable tool for all bat workers and enthusiasts. EXPERIENCE TRUE BAT SOUNDS FOR THE FIRST TIME WITH 16x TIME EXPANSION Time Expansion was previously a very high-end, expensive option. Time Expansion in Bat Detector operates in quasi real-time, capturing small snippets of bat sound and playing them back at 1/16 speed. 16 is a number chosen for two good reasons. Firstly it brings the bat sounds down to an easy range for human hearing, the sounds generated by Bat Detector range from between 1kHz to just under 7kHz. 16x Time Expansion preserves the harmonic relationships between the bat sounds, so it is a MUSICAL transformation. The bat sounds are not only slowed down but are transposed down by exactly 4 octaves. This means if a bat calls a C#, you will hear a C#, but 4 octaves lower. You will be surprised how beautiful and musical bat sounds are when time-expanded. When used in conjunction with heterodyning, and with the accurate frequency read out on the display, bat species identification is made much easier and more reliable. FULL-SPECTRUM 384kHz RECORDINGS TRIGGERED BY BAT SOUNDS When "RECORD" is engaged Bat Detector will trigger a 5 second full-spectrum recording at 384kHz whenever it hears a bat, or at least something that it *thinks* sounds like a bat. These are not the recordings of the sounds you hear coming from the detector, but are the sounds going INTO the detector - the true ultrasonic sounds that the bats made, too high for humans to hear. You will need specialist software to examine these files after you export them from your device to a computer. DEMO MODE FOR EDUCATION AND TRAINING If you want to experience bat sounds during the daytime, in a classroom environment, or when there aren't any bats around, just turn on Demo Mode in the Bat Detector section of the settings App, and Bat Detector will loop through a collection of bat recordings from Wiltshire, England. Alternatively, if you have recordings of your own that you wish to use, create a folder called Demo in Files->Bat Detector and Bat Detector will use these in Demo mode rather than its built-in recordings.

Detector – Hidden Signal Scanner & Device Analyzer See what your eyes cannot — using your phone. Detector is a privacy, security, and environmental analysis app that helps inspect hotel rooms, vacation rentals, offices, vehicles, and other spaces for unusual signals, wireless activity, suspicious devices, and environmental anomalies. Using your devices built-in sensors and wireless capabilities, Detector combines scanning tools, room mapping, risk analysis, reporting, and device diagnostics in one app. Full Scan Perform a comprehensive room inspection and create a detailed investigation report. Features include: • Room Mapping & Coverage Tracking • Spatial Findings & Risk Markers • Timeline-Based Event Tracking • Risk Summary Reports • Historical Scan Archive • Sensor-Specific Findings • Suspicious Activity Logging • Photo Evidence Capture • Notes & Investigation Records • PDF Export & Sharing Detection Tools Detector combines multiple technologies into a single workflow: • Infrared / Lens Detection • Ultrasound Analysis • Magnetic Field Detection • Light & Flicker Monitoring • Motion Detection • Pressure Monitoring • Bluetooth (BLE) Scanner • Wi-Fi Scanner • Ultra Wideband (UWB) Analysis • NFC Tag & Device Detection • Cellular Network Analysis • GPS Anomaly Monitoring Reports & Investigation Tools Review current and historical findings with detailed reporting features. • Session Reports • Historical Reports • Timeline View • Risk Classification • Detailed Finding Records • Full Scan Reports • Print, Copy & PDF Export Track scans over time and compare findings across multiple locations and sessions. Device Utilities • Battery Report • Device Health History • Performance Report • Internet Speed Test • Storage Cleaner Privacy-Focused Design • Privacy-First Approach • Local Scan History • Offline Mode Available • No Account Required • Minimal Data Collection Ideal For • Travelers • Hotel Guests • Vacation Rental Users • Journalists • Investigators • Security Professionals • Privacy-Conscious Individuals • Anyone Curious About Hidden Signals and Wireless Activity Additional Features • Support for 77+ Languages • Historical Scan Storage • Photo Documentation • Risk-Based Detection System • Room Coverage Tracking • PDF Export & Sharing • Offline Mode (Subscription) • Ad-Free Experience (Subscription) Detector helps you understand the signals, devices, and environmental activity around you, providing tools for inspection, analysis, documentation, and awareness. Note: Detector uses available device sensors and wireless technologies to analyze environmental conditions, identify compatible nearby devices and tags, and highlight unusual activity patterns. Results should be used as indicators and informational guidance rather than definitive proof of surveillance devices or security threats. LICENSED APPLICATION END USER LICENSE AGREEMENT: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/