Ghost Hunting Kit - HauntKeep
In-app purchases
Everyone 10+
info
100+
Downloads
About this app
HauntKeep is a ghost hunting app that turns your phone's real sensors into a kit of paranormal investigation instruments: SLS, an EMF meter, a Spirit Box, an EVP recorder, a Vibration Geophone, and more. Built for atmosphere, curiosity, and a good scare.
Every reading has a source, and the app shows it. A number on screen traces back to a sensor in your phone, with the steps behind it on the same screen: the live input, the baseline it is measured against, and the math in between. Values the app fetches or works out are labeled that way: the day's space weather and local conditions are fetched, and the moon phase is worked out from the date. A mode that needs hardware your phone doesn't have says so and stops.
What a reading means is yours to decide. Every mode says which kind it is: REAL for the ones that measure a physical signal, EXPERIENCE for the ones built for mood and story, on the tile, before you open it. Both kinds show their working: the sensor and the math, or the field driving them.
GHOST HUNTING INSTRUMENTS: each reads a sensor on your phone
• EMF Meter: reads your phone's real magnetometer, with a live baseline, a standard-deviation gauge, and space-weather (Kp) context so you can see when the field leaves your room's normal.
• EVP Recorder: records the room to WAV with markers, then plays it back with a waveform, spectrogram, variable speed and a high-pass filter.
• Sound: a live level meter and FFT spectrogram of the room.
• Vibration: a geophone that turns your accelerometer into a seismograph for taps and footsteps.
• Shadow: place your phone and watch for luminance and motion changes.
• Dowsing Rods: two rods swung by real changes in magnetic heading.
• Vision: a low-light camera enhancer.
• SLS: a pose-estimation skeleton overlay on the live camera.
THE EXPERIENCES: interpretive, and each names what drives it
• Dictionary: a word engine driven by live field readings.
• Phonetic (Spirit Box): a synthesized voice sweep; the field sets how busy it is, and the words come from the app's own bank.
• Radio Sweep: a sweep across live internet radio (ambience only).
• Music Box, Morse, REM Touch, Talking Board, Draw, White Noise, and a live multi-sensor Investigation camera.
PARANORMAL INVESTIGATION SESSIONS
• Record a baseline sweep so spikes are measured against your room's own normal.
• A cross-mode timeline lines up every mode's events on one ruler and flags moments when two or more independent sensors fire within the same 2 s window.
• Tag a session with real environmental context: weather, sunrise/sunset, moon phase, and the space-weather Kp index (optional; uses approximate location).
• Export a session as a clean report or a shareable zip.
PRIVATE BY DESIGN
• Yours alone: no accounts, no ads, no trackers, no analytics SDKs.
• Your recordings, photos, and notes stay on your device.
• The one thing that ever leaves your phone is an approximate, rounded location, sent to a weather service when you tap to add environmental context.
• Uninstalling removes all of the app's data.
FREE TO EXPLORE
Free to install, with the EMF meter and the Talking Board fully open: no time limit and no ads. The whole investigation layer is free too: sessions, the baseline sweep, the cross-mode timeline and environmental context. One optional purchase opens the remaining modes and lets you take a case file away: PDF reports, session bundles and CSV export. Pay once; there is no subscription.
WHAT TO EXPECT
The instruments read your phone's real sensors, and every value arrives with the steps behind it. HauntKeep is an entertainment app, not a scientific, medical, or safety instrument, and it makes no claim about what its readings mean. What those readings mean is left entirely to you. It contains paranormal and mild-horror themes and is intended for a general (not young child) audience.
Grab a friend, turn out the lights, and go ghost hunting.
HauntKeep™ is a trademark of Hevenis LLC.
Every reading has a source, and the app shows it. A number on screen traces back to a sensor in your phone, with the steps behind it on the same screen: the live input, the baseline it is measured against, and the math in between. Values the app fetches or works out are labeled that way: the day's space weather and local conditions are fetched, and the moon phase is worked out from the date. A mode that needs hardware your phone doesn't have says so and stops.
What a reading means is yours to decide. Every mode says which kind it is: REAL for the ones that measure a physical signal, EXPERIENCE for the ones built for mood and story, on the tile, before you open it. Both kinds show their working: the sensor and the math, or the field driving them.
GHOST HUNTING INSTRUMENTS: each reads a sensor on your phone
• EMF Meter: reads your phone's real magnetometer, with a live baseline, a standard-deviation gauge, and space-weather (Kp) context so you can see when the field leaves your room's normal.
• EVP Recorder: records the room to WAV with markers, then plays it back with a waveform, spectrogram, variable speed and a high-pass filter.
• Sound: a live level meter and FFT spectrogram of the room.
• Vibration: a geophone that turns your accelerometer into a seismograph for taps and footsteps.
• Shadow: place your phone and watch for luminance and motion changes.
• Dowsing Rods: two rods swung by real changes in magnetic heading.
• Vision: a low-light camera enhancer.
• SLS: a pose-estimation skeleton overlay on the live camera.
THE EXPERIENCES: interpretive, and each names what drives it
• Dictionary: a word engine driven by live field readings.
• Phonetic (Spirit Box): a synthesized voice sweep; the field sets how busy it is, and the words come from the app's own bank.
• Radio Sweep: a sweep across live internet radio (ambience only).
• Music Box, Morse, REM Touch, Talking Board, Draw, White Noise, and a live multi-sensor Investigation camera.
PARANORMAL INVESTIGATION SESSIONS
• Record a baseline sweep so spikes are measured against your room's own normal.
• A cross-mode timeline lines up every mode's events on one ruler and flags moments when two or more independent sensors fire within the same 2 s window.
• Tag a session with real environmental context: weather, sunrise/sunset, moon phase, and the space-weather Kp index (optional; uses approximate location).
• Export a session as a clean report or a shareable zip.
PRIVATE BY DESIGN
• Yours alone: no accounts, no ads, no trackers, no analytics SDKs.
• Your recordings, photos, and notes stay on your device.
• The one thing that ever leaves your phone is an approximate, rounded location, sent to a weather service when you tap to add environmental context.
• Uninstalling removes all of the app's data.
FREE TO EXPLORE
Free to install, with the EMF meter and the Talking Board fully open: no time limit and no ads. The whole investigation layer is free too: sessions, the baseline sweep, the cross-mode timeline and environmental context. One optional purchase opens the remaining modes and lets you take a case file away: PDF reports, session bundles and CSV export. Pay once; there is no subscription.
WHAT TO EXPECT
The instruments read your phone's real sensors, and every value arrives with the steps behind it. HauntKeep is an entertainment app, not a scientific, medical, or safety instrument, and it makes no claim about what its readings mean. What those readings mean is left entirely to you. It contains paranormal and mild-horror themes and is intended for a general (not young child) audience.
Grab a friend, turn out the lights, and go ghost hunting.
HauntKeep™ is a trademark of Hevenis LLC.
Paranormal investigation with real sensors — SLS, EMF, EVP, Spirit Box & more
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
What’s new
Fixes for Phonetic's session count, the Dictionary voice list, the cross-mode Timeline, Music Box and audio playback. Improved low-light handling in SLS.
App support
About the developer
Caelori LLC
support@caelori.com
502 W 7TH St Ste 100
Erie, PA 16502-1333
United States
+1 412-764-1477
