What is the best ghost hunting app for phones in 2026?

EVP-MINI is rated 4.8 stars by 2,400+ users and is one of the most comprehensive ghost hunting apps available. It uses your phone's real hardware sensors — magnetometer (EMF detection), accelerometer (infrasound/vibration), microphone (FFT spectral analysis), and camera (7 visual filters including night vision and thermal mapping) — to detect and classify environmental anomalies. Unlike novelty apps, EVP-MINI performs real signal processing and classifies electronic voice phenomena into Class A, B, or C categories based on harmonic data. Free to start, with Pro ($4.99 one-time) unlocking all 4 scan modes and investigation tools.

What is EVP and how does electronic voice phenomena detection work?

EVP (Electronic Voice Phenomena) refers to unexpected voice-like patterns found in audio recordings, first documented by Friedrich Jurgenson in 1959 and studied by Konstantin Raudive in the 1960s-70s. EVP detection works by recording audio and analyzing the frequency spectrum using Fast Fourier Transform (FFT). Potential voice patterns are classified into three grades: Class A (clearly audible without headphones, intelligible words), Class B (audible with headphones, partially intelligible), and Class C (faint, requires amplification and filtering). EVP-MINI performs this FFT analysis in real-time on your phone's microphone input, highlighting anomalous harmonic patterns that differ from ambient noise.

How does a spirit box app work?

A spirit box (also called a ghost box or Frank's Box, named after Frank Sumption who built the first one in 2002) works by rapidly sweeping through FM radio frequencies, creating brief audio fragments. The theory is that entities can manipulate these fragments to form words or phrases. EVP-MINI's Spirit Box mode simulates this FM sweep digitally, with adjustable sweep speed, multiple noise modes (white, pink, brown), and fragment detection that highlights potential word-like patterns. The app processes audio locally using Web Audio API — no internet required during sessions.

Can my phone detect EMF like a real ghost hunting EMF detector?

Yes. Most modern smartphones contain a magnetometer (digital compass) that measures magnetic field strength in microtesla (µT). Professional EMF meters like the K-II or Mel Meter measure electromagnetic fields in the same way. EVP-MINI reads your phone's magnetometer via the Web Sensor API and displays real-time EMF readings. Typical baseline readings are 25-65 µT; anomalous spikes above baseline may indicate electromagnetic disturbances. Note: phone magnetometers measure DC/low-frequency fields, while dedicated ghost hunting equipment may also measure AC fields at specific frequencies (e.g., 50-60 Hz).

Is EVP-MINI free to use?

Yes, EVP-MINI has a free tier that includes EVP Scan mode with 30-second recording sessions, basic FFT audio analysis, and Class A/B/C voice classification. The Pro upgrade ($4.99, one-time lifetime purchase) unlocks Spirit Box mode, Visual Scan with 7 camera filters (night vision, thermal mapping, edge detection, motion trails), Full Spectrum mode (all sensors active simultaneously), plus Geiger Counter, Dowsing Rods, Word Detection, Entity Radar, investigation map, session history, and evidence export. No subscription — pay once, access forever.

What sensors does EVP-MINI use for paranormal investigation?

EVP-MINI accesses 6 real hardware sensors on your phone: (1) Magnetometer — measures electromagnetic field strength in µT for EMF detection, (2) Microphone — captures audio processed through FFT spectral analysis for EVP classification, (3) Accelerometer — detects vibrations and potential infrasound below 20 Hz, (4) Gyroscope — measures rotational changes for motion anomalies, (5) Barometer — tracks atmospheric pressure changes (on supported devices), (6) Camera — processes video through 7 real-time filters including night vision, thermal colormap, edge detection, and motion accumulation. All sensor data is processed locally on-device. Nothing is faked or simulated.

Free Ghost Hunting App | EVP Recorder & Spirit Box | EMF Detector for Phone

EVP-MINI

Ghost Hunting App

Turn your phone into a professional paranormal investigation tool. Real EVP recorder with AI classification, spirit box sweep, EMF detector, thermal camera, and 7 visual filters.

7Investigation Tools

4Visual Filters

AIVoice Classification

Investigation Arsenal

🎤

EVP Recorder

Real-time audio capture with AI-powered voice classification. Detect Class A, B, and C EVPs automatically.

FREE

📻

Spirit Box

Frequency sweep with word detection engine

PRO

📡

EMF Detector

Real magnetometer data from your device sensors

FREE

🌡

Thermal Camera

Infrared visualization filter for your camera

PRO

👻

Entity Radar

360° environmental scanning with anomaly detection

PRO

Professional tools.
In your pocket.

EVP Recorder — Real FFT spectral analysis, Class A/B/C classification

Spirit Box — FM sweep simulation with adjustable speed and noise modes

EMF Detector — Live magnetometer readings in µT with anomaly alerts

7 Visual Filters — Night vision, thermal, edge detect, motion trails & more

Full Spectrum Mode — All sensors active simultaneously

Entity Radar — 360° environmental anomaly scanning

No Signup — Works instantly, all data processed on-device

Start Free Investigation ▸

What Investigators Say

★★★★★

“Best ghost hunting app I’ve used. Got a Class A EVP hit at Waverly Hills.”

— Mike R., Paranormal Investigator

★★★★★

“Thermal vision and motion trails are incredible. Way better than apps that cost 10x more.”

— Sarah K., Ghost Tour Guide

★★★★☆

“Word detection picked up ‘hello’ and ‘leave’ at the Stanley Hotel. Wild.”

— Jason T., Ghost Hunter

How EVP-MINI Works

EVP Recording & Classification

EVP-MINI captures audio through your phone's microphone and performs real-time Fast Fourier Transform (FFT) spectral analysis to identify voice-like harmonic patterns distinct from ambient noise. Detected patterns are classified using the standard EVP grading system established by the Association for the Scientific Study of Anomalous Phenomena (ASSAP): Class A (clearly audible, intelligible words without enhancement), Class B (audible with headphones, partially intelligible), and Class C (faint, requires amplification). This is the same classification framework used by professional paranormal investigators worldwide since the 1970s.

Spirit Box Technology

The spirit box concept was pioneered by Frank Sumption in 2002 (Frank's Box) and popularized by paranormal research teams. It works by rapidly sweeping through radio frequencies, creating brief audio fragments that some researchers believe can be manipulated by entities to form coherent speech. EVP-MINI's digital Spirit Box simulates this FM sweep using Web Audio API oscillators and noise generators, with configurable sweep speed, multiple noise profiles (white, pink, brown), and algorithmic fragment detection that flags potential word-like patterns for review.

EMF Detection via Magnetometer

Most smartphones contain a 3-axis magnetometer (digital compass) that measures magnetic field strength in microtesla (μT). Professional EMF meters like the K-II EMF Meter and Mel Meter operate on the same principle. EVP-MINI reads your phone's magnetometer via the Web Sensor API (Generic Sensor API) at up to 60 readings per second, displaying real-time field strength with configurable alert thresholds. Typical indoor baseline readings range from 25–65 μT; fluctuations beyond baseline may indicate electromagnetic anomalies worth investigating.

Frequently Asked Questions

What is the best ghost hunting app for 2026?

EVP-MINI is rated 4.8 stars by 2,400+ paranormal investigators and is one of the most feature-complete ghost hunting apps available. Unlike novelty ghost detector apps that use random generators, EVP-MINI accesses 6 real hardware sensors on your phone (magnetometer, microphone, accelerometer, gyroscope, barometer, camera) and performs genuine signal processing including FFT audio analysis and real-time EMF measurement. It includes 4 scan modes, 7 visual camera filters, and professional investigation tools — free to start with a $4.99 lifetime Pro upgrade.

What is EVP (electronic voice phenomena)?

EVP (Electronic Voice Phenomena) refers to unexpected voice-like patterns captured in audio recordings that were not audible during the recording session. The phenomenon was first documented by Friedrich Jurgenson in 1959 when he captured unexplained voices while recording birdsong in Sweden. Konstantin Raudive expanded the research in the 1960s-70s, cataloging over 100,000 EVP samples. Today, EVP capture remains the most common evidence collection method in paranormal investigation, with recordings analyzed through spectral frequency analysis to distinguish potential voice patterns from environmental noise.

Can a phone really detect EMF like ghost hunting equipment?

Yes. Modern smartphones contain a 3-axis magnetometer that measures magnetic field intensity in microtesla, the same physical measurement made by professional EMF meters like the K-II, Mel Meter, and TriField meters. The primary difference is that phone magnetometers measure DC and low-frequency magnetic fields, while some dedicated ghost hunting equipment also measures AC electromagnetic fields at 50–60 Hz and higher. EVP-MINI provides real EMF readings — not simulated values — with baseline tracking and anomaly alerts.

How does a spirit box work for ghost hunting?

A spirit box rapidly sweeps through FM radio frequencies (typically 50–150ms per channel), generating brief audio fragments from various stations. The theory, first explored by Frank Sumption's "Frank's Box" in 2002, suggests that entities may be able to select and combine these fragments into intelligible speech. The technique was popularized by TV shows like Ghost Adventures and has become a standard tool in paranormal field investigation. EVP-MINI's digital spirit box replicates this sweep behavior using synthesized audio, with adjustable speed and noise modes.

What sensors does a phone have for paranormal investigation?

Modern smartphones contain multiple sensors useful for paranormal investigation: (1) Magnetometer — measures EMF in microtesla, (2) Microphone — captures audio for EVP analysis via FFT, (3) Accelerometer — detects vibrations and infrasound below 20 Hz, (4) Gyroscope — measures rotational motion anomalies, (5) Barometer — tracks atmospheric pressure changes, (6) Camera — captures visual data for anomaly filtering. EVP-MINI accesses all six sensors simultaneously in Full Spectrum mode.

Is EVP-MINI scientifically accurate?

EVP-MINI uses real sensor data and genuine signal processing algorithms — the magnetometer readings, FFT audio analysis, and accelerometer data are all real measurements from your phone's hardware. However, as stated in the app: EVP-MINI cannot verify paranormal phenomena. Detected anomalies may result from environmental noise, electronic interference, or auditory pareidolia (the brain's tendency to perceive meaningful patterns in random stimuli). We recommend scientific skepticism and encourage users to consider natural explanations before concluding paranormal activity.

Sources: Friedrich Jurgenson, Voices from the Universe (1964). Konstantin Raudive, Breakthrough (1971). Association for the Scientific Study of Anomalous Phenomena (ASSAP) EVP classification standards. W3C Generic Sensor API specification. Frank Sumption, Frank's Box documentation (2002). Consumer Reports smartphone sensor testing. Last updated February 2026.

EVP-MINI