Comparison

SPI vs SPECTRAL

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SPI

This scientific device is designed for paranormal research and ghost hunting. It combines advanced ITC technology with intuitive frequency features to help users connect with the unknown and explore paranormal activity using AI tools.

Highlights
  • Scientific paranormal device
  • ITC cutting-edge technology
  • Intuitive frequency features
  • Connect with the unknown
  • EVP Evidence
  • Artificial intelligence tools
Features
Read full description

Spirit Phone Innovations (SPI) — Experimental ITC Research Software Spirit Phone Innovations (SPI) is an experimental paranormal research application developed to explore new approaches to Instrumental Trans-Communication (ITC). Conceptualized by paranormal researcher Sean Austin, SPI is designed to analyze environmental audio using artificial intelligence in a way that differs from traditional ITC-style applications. At the core of SPI is SAM Mode, an experimental feature that analyzes environmental audio in real time and applies AI-based processing to identify and interpret audio patterns that may exist outside of normal human speech ranges. Unlike applications that rely on fixed word banks or pre-selected vocabulary, SPI is designed without predetermined phrase limitations, allowing for open-ended analysis rather than scripted responses. KEY FEATURES SAM Mode Audio Analysis: Experimental AI-driven analysis of environmental audio for potential anomalous patterns. No Word Bank Limitation: Designed without a fixed vocabulary list, allowing results to remain unrestricted by preset phrases. Session Logging & Word History: Detected words and session results are automatically saved to an in-app log folder, allowing users to review, compare, and document findings over time. Language Interpretation (Experimental): Optional translation of detected words when foreign-language patterns are identified. Estimated Voice Characteristics: Experimental analysis providing estimated age range and gender characteristics based on detected audio patterns. Community Activity Mapping & GPS Directions: Users can place location pins to document reported activity, view shared locations from other users, and receive GPS directions to reported sites. SPI was designed with the idea that ITC research benefits from documentation, pattern comparison, and shared exploration. The goal is not to provide predetermined answers, but to create an environment where users can explore potential patterns in audio and compare results across locations, environments, and sessions. SPI is intended for exploration and research. Results are not guaranteed and may vary. Spirit Phone Innovations is an evolving platform committed to continuously expanding and refining its tools as AI technology advances. SUBSCRIPTION INFORMATION SPI requires a subscription to access its features. Two auto-renewable subscription tiers are available — Standard and Ghost — each offered as monthly or yearly plans. Standard includes: EVP detection, frequency range control, and paranormal hotspot reporting. Ghost includes: Everything in Standard, plus age and gender detection and multi-language EVP translation. Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions at any time through your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://spiritphoneinnovations.app/privacy-policy

About

SPECTRAL

Transform your device into a paranormal investigation tool. Utilize real sensors to detect electromagnetic fields, capture spectral evidence with advanced cameras, and communicate with potential entities using a spirit box. Explore haunted locations and record your findings.

Highlights
  • Real magnetometer, motion, and microphone sensors
  • SLS skeletal camera for figure detection
  • EMF radar and sensor readings
  • Spirit box with multiple voice banks
  • EVP recorder with anomaly tagging
  • Seance board for communication
  • Multiple vision filters (Night Vision, Thermal, etc.)
  • Record and share investigation videos
Features
Read full description

SPECTRAL turns your iPhone into a ghost hunting kit: EMF radar, spirit box, SLS camera, EVP recorder and séance board in one app. It reads your phone's REAL magnetometer, motion sensors and microphone and turns them into atmospheric investigation tools. SLS CAMERA Maps human-shaped figures onto your camera feed in real time. Sometimes it finds you. Sometimes it finds something smaller in the corner that walks away on its own. Skeletons are saved into your photos and videos. EMF RADAR Live readings from your phone's magnetometer on a signal graph. The meter climbs as fields shift and blips appear on the radar. Temperature, voltage and frequency readouts track anomalies. SPIRIT BOX 6 channels, each with its own voice and word bank: STANDARD, DEMON, CHILD SPIRIT, SOLDIER'S ECHO, SÉANCE and ANCIENT. Speak out loud and entities answer when they hear you. Capture and share any word the instant it comes through. EVP RECORDER Record sessions from the room around you. Peaks are tagged as anomalies automatically, so you can jump to the moment something answered. SÉANCE BOARD Ask a question aloud and watch the planchette spell out the reply, letter by letter. VISION CAMERA Seven modes, including Green Glow, Heat Map Colors, Blacklight Glow, Ectoplasm, Shadow Veil and Specter Mode. Entities manifest without warning and orbs drift through frame. Every photo gets an entity type, threat level and confidence score. RECORD & SHARE Film your hunt with overlays, skeletons and orbs and share it to your feed. Standard clips run 30 seconds with a watermark; PRO records up to 3 minutes without one. INVESTIGATIONS 30+ case files in haunted places: abandoned asylums, forgotten chapels, sunken parishes, lighthouses. Each has a backstory, zones to sweep and entities to identify. A new case rotates in daily and one stays open to everyone each week. Close a case to get an animated Case Closed card. EVIDENCE JOURNAL Every capture is archived and classified. Climb 4 investigator ranks, keep your daily streak, complete daily missions and unlock radar themes in the Season Pass. Halloween, full moons and the 3 AM witching hour intensify activity. SPECTRAL PRO Every channel, filter and case, the custom case builder, 3-minute video without a watermark, longer recording sessions, Deadwave mode, audio effects, entity forensics, sensor calibration and no ads. Monthly, yearly or a one-time Lifetime purchase. Monthly and yearly Pro are auto-renewing subscriptions. Payment is charged to your Apple ID account at confirmation of purchase. A subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours before the period ends. Manage or cancel subscriptions in your Apple ID account settings. Lifetime is a one-time purchase and does not renew. Terms of Use (EULA): https://peerware.site/spectral-terms Privacy Policy: https://peerware.site/spectral-privacy-policy WARNING Eerie audio, sudden visual effects and atmospheric horror. Not recommended for young children or anyone sensitive to jump scares. DISCLAIMER SPECTRAL is an entertainment app. It reads real device sensors, but readings are interpreted for atmospheric effect and do not detect actual paranormal activity. We make no scientific claims about ghosts or spirit communication.

Screenshots

SPI4 screens
SPECTRAL4 screens

Verdict

The call

The clearest difference is ads: SPI at none against SPECTRAL's shown. SPI also leads on monetization model (free vs free with in-app purchases). SPECTRAL's advantage is update cadence (every 5 days vs every 6 weeks) and iOS requirement (15.0 vs 17.0). On price, rating, ratings volume and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SPI sells 4 in-app purchases, starting at $4.99 per month and SPECTRAL sells 12 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for SPI against 4.8 for SPECTRAL. Both are backed by a comparable volume of ratings — 8 and 4 respectively.

UpkeepUpdate frequency

SPI ships an update every 6 weeks, SPECTRAL every 5 days. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
SPI versus SPECTRAL: the parameters behind the verdict, then further details
ParameterSPISPECTRAL
PriceFreeFree
Rating4.8 (8 ratings)4.8 (4 ratings) — better
Positive reviews59.6% of reviews—
Number of ratings8 — better4
Update frequencyEvery 6 weeksEvery 5 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size70 MB54 MB
Age rating17+9+
DeveloperSpirit Phone Innovations LLCPeerware

Customer experience

SPI

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews151 reviews
Positive59.6%
Neutral2.6%
Negative37.7%

SPECTRAL

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

SPI

Reported bugs

3 issues
  • Audio/voice not working
  • Crashes and freezes
  • Inability to save/review recorded interactions

Requested features

3 requests
  • Voice playback for responses
  • Improved stability and reliability
  • Clearer instructions and guidance for users

SPECTRAL

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

SPI

Subscriptions4
  • Standard Monthly$4.991 Month
  • Ghost Monthly$7.991 Month
  • Standard Yearly$49.991 Year
Show 1 more
  • Ghost Yearly$79.991 Year
12 purchases

SPECTRAL

Subscriptions2
  • Spectral Pro Monthly$4.991 Month
  • Spectral Pro Annual$19.991 Year
One-time10
  • Shadow & Specter Filter Pack$0.99
  • Séance Channel$0.99
  • Ecto Detector Filter$0.99
Show 7 more
  • Ancient Spirit Pack$0.99
  • Child Spirit Channel$0.99
  • Demon Channel$0.99
  • Soldier's Echo Channel$0.99
  • UV Spectrum Filter$0.99
  • Season Pass Premium$2.99
  • Spectral Pro Lifetime$19.99

Questions

Is SPI free?
SPI is free to download, with in-app purchases available.
Is SPECTRAL free?
SPECTRAL is free to download, with in-app purchases available.
Which has better reviews, SPI or SPECTRAL?
SPECTRAL is rated higher. SPI averages 4.8 out of 5 from 8 ratings, while SPECTRAL averages 4.8 from 4 ratings.
Do SPI or SPECTRAL have ads?
SPECTRAL shows ads; SPI does not.
Which is updated more often, SPI or SPECTRAL?
SPI ships an update every 6 weeks, and SPECTRAL every 5 days. Most recently, SPI was updated on October 23, 2026 and SPECTRAL on October 24, 2026.

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