# Spectra: Ghost Hunting Tools — EVP Recorder & SLS Camera

> Ghost hunting tool using phone sensors for EMF, EVP, SLS, and location mapping. (iPhone/iPad app by Byte-Sized Bits, LLC.)

- Source: https://appshunter.io/ios/app/spectra-ghost-hunting-tools/id6810699948 (this page in markdown: same URL + `.md`)
- Developer: [Byte-Sized Bits, LLC](https://appshunter.io/developer/6810699950)
- Category: Entertainment, Utilities
- Price: Free with in-app purchases
- Rating: 5.00/5 from 4 App Store ratings
- Age rating: 12+
- Requires: iOS 17.0 · 32 MB
- Languages: American English, French (France), Italian, Japanese, European Spanish
- Released: 2026-09-29
- Data updated: 2026-10-17
- Monetization: free with in-app purchases

## What is Spectra?

Spectra turns your phone into a ghost hunting instrument. Every number on screen comes from real hardware in your phone: the magnetometer, the microphone, the barometer, the camera, the accelerometer and gyroscope. It's all processed on the phone and explained in plain English. No random spikes. No theatrics dressed up as data.

The measurements are honest. What they mean is your call.

SLS OPTICS
Point the camera at the room. On-device pose detection draws a glowing stick figure over anything shaped like a person, live, while your other readings stay on screen. It's strict on purpose: it won't outline a coat rack. Tap MARK to keep a frame with the figure burned in.

EMF DETECTOR
Your phone's compass chip reads the magnetic field around you. Spectra learns the room's normal level, then shows how far each reading climbs above it, in microtesla. Follow the needle toward the source. House wiring sits flat. A passing elevator swells and fades. A sharp climb that follows you around is the one worth writing down.

EVP RECORDER
A live spectrum shows everything the mic hears, from deep rumble to past the edge of hearing. When something sustained shows up outside the human speech band, below 85 Hz or above 4 kHz, with no voice underneath it, Spectra saves a clip and tags its peak frequency. Detection pauses while you're talking, so a capture can't just be you.

ITC CHANNEL
Spectra's take on the spirit box. On-device listening writes out what you say and, under your words, surfaces anything talking back. Ask a question, then give it a little quiet.

PRESSURE, MOTION AND PRESENCE
The barometer tracks air pressure against the room's normal. Doors and drafts jump in steps, weather drifts slowly. Motion sensors tell your footsteps apart from a knock near the phone. A presence level from 0 to 5 weighs every channel: EMF counts least, a voice reply counts most, and readings are discounted while you're walking around.

A MAP OF HAUNTED PLACES
Find reviewed haunted places across the US, read what people say happened there, and get directions. A person checks each one before it goes on the map.

EVERY SESSION, SAVED
Each investigation is logged automatically: timestamped contacts, the EMF trace, pressure trends, EVP captures and SLS frames. Go back through any session and play its clips.

FIELD MANUAL
Every readout has a plain-English page one tap away: what the sensor measures, what the numbers mean, and which boring explanations to rule out first.

FREE VS FULL ACCESS
Every sensor, EVP detection and capture, session recording, the map, and raw playback of every clip are free, no account needed. Full Access adds the processing: enhanced playback that pitch-shifts ultrasonic and infrasonic clips into hearing range, clip tuning, WAV export, the full SLS OPTICS mode, and custom accent colors.

Full Access is available as an annual subscription with a 7-day free trial, a weekly subscription, or a one-time lifetime purchase. Prices are shown in the app in your currency. Payment is charged to your Apple ID when you confirm the purchase, or when the free trial ends. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. You can manage or cancel them in your App Store account settings.

PRIVACY
Your recordings, transcripts, camera frames and session history stay on your phone, and investigating works fully offline (the map needs a connection). No account, no ads. Spectra does use analytics and crash reporting, and measures which ads bring people in. Nothing from a session is ever part of that.

Spectra is for entertainment. The sensor readings, spectrum, audio clips and pose detection are real device measurements.

============

Terms of Use:
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- SLS camera with pose detection
- EMF detector with real-time readings
- EVP recorder with live spectrum analysis
- ITC channel for spirit communication
- Motion and pressure sensor tracking
- Map of haunted places
- Session logging and playback

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Spectra Pro Yearly | $12.99 | per year |
| Pro Weekly | $0.99 | per 7 days |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Pro Lifetime | $19.99 | one-time |


## Is Spectra safe?

Not enough ratings yet to assess Spectra.

## Is Spectra legit?

Spectra: Ghost Hunting Tools has limited verification signals. The AppsHunter Legitimacy Score for Spectra is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about Spectra

### Does Spectra have ads?

Yes, Spectra contains advertisements. The free version of the app includes advertisements to support its development and features.

### What is the pricing for Spectra's Full Access?

Full Access to Spectra is available via a weekly subscription for $0.99, an annual subscription for $12.99 with a 3-day free trial, or a one-time lifetime purchase. Prices are displayed in your local currency within the app.

### What sensors does Spectra use?

Spectra utilizes your phone's magnetometer, microphone, barometer, camera, accelerometer, and gyroscope to gather data for its ghost hunting tools.

### Can I use Spectra offline?

The core features of Spectra, including sensor readings and EVP recording, are available without an internet connection. However, features like the map of haunted places may require connectivity.

### How does Spectra's SLS camera work?

The SLS Optics feature uses on-device pose detection to draw a stick figure over objects shaped like a person in real-time, displayed over your live sensor readings.

### What is the age rating for Spectra?

Spectra has an age rating of 12+, indicating it is suitable for users aged 12 and older.

### How often is Spectra updated?

The latest version of Spectra is 2.1.1, and it was last updated on October 14, 2026. Updates typically include new features and improvements.

### What makes Spectra's EVP recorder unique?

Spectra's EVP recorder analyzes audio for sustained sounds outside the human speech band (below 85 Hz or above 4 kHz) with no voice underneath, saving clips and tagging their peak frequency. It also pauses detection when you speak to avoid capturing your own voice.

## Version history (last 5 releases)

### 2.1.1 — 2026-10-14

- Get into the mood of ghost hunting with themed effects! Not too much, not too little. Customize your experience
- Bug fixes and general optimization

### 2.0.1 — 2026-10-08

We optimized the app beyond even our own belief! Your investigations now run WAY smoother.

### 1.5.10 — 2026-10-03

Fixed an issue with SLS on devices that don't have low-brightness adjustment built-in

### 1.5.9 — 2026-10-02

Hotfixes, for a better investigation experience

### 1.5.7 — 2026-09-29

No release notes.

## Apps similar to Spectra

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [GhostLab: Paranormal Toolkit](https://appshunter.io/ios/app/ghostlab-paranormal-toolkit/id6791637317) | 4.5 (15) | Free | Entertainment |
| [Hollow: Ghost Box, EVP & SLS](https://appshunter.io/ios/app/hollow-ghost-box-evp-and-sls/id6781119666) | 5.0 (9) | Free | Entertainment |
| [SpectraBox: Spirit Box EVP](https://appshunter.io/ios/app/spectrabox-spirit-box-evp/id6780213241) | 4.0 (5) | Free | Entertainment |
| [Vizlings](https://appshunter.io/ios/app/vizlings/id6760131822) | 5.0 (5) | Free | Entertainment |
| [Ghost Detector, Spirit Talker](https://appshunter.io/ios/app/ghost-detector-spirit-talker/id6785620164) | 4.4 (22) | Free | Entertainment |
| [K-II EMF Meter - Ghost Hunting](https://appshunter.io/ios/app/k-ii-emf-meter-ghost-hunting/id6775842503) | 2.1 (11) | Free | Entertainment |

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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 2026-10-17.*