Comparison

ESP Challenge vs Spirit Box

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

Head to head
About

ESP Challenge

Read full description

Zener ESP Challenge is a professional intuition test designed to measure your sixth sense, clairvoyance, and mental focus using the world-famous Zener cards.

About

Spirit Box

This app transforms your phone into a paranormal investigation tool, featuring a real-time EMF detector and an advanced spirit box communicator. It's designed for immersive ghost hunting, allowing you to scan electromagnetic activity and attempt spirit communication with a clean, distraction-free interface.

Highlights
  • Real-time EMF detector
  • Interactive EMF meter interface
  • Advanced spirit box communication
  • Dynamic signal feedback
  • Focused investigation interface
  • Simulates EVP
Features
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Turn your phone into a complete paranormal investigation tool with a powerful combination of a real-time EMF detector and an advanced spirit box communicator. Designed for immersive ghost hunting, this app gives you the tools to scan electromagnetic activity and attempt spirit communication—all in one place. Built with a clean, distraction-free interface, Spirit Box: Ghost EMF keeps your focus where it matters: the investigation. KEY FEATURES 1. Real-Time EMF Detector: - Measure electromagnetic field (EMF) levels using your device’s magnetic sensor - Detect environmental changes and EMF spikes instantly - Track fluctuations as you move through different locations 2. Interactive EMF Meter Interface: - Realistic analog-style EMF gauge - LED signal indicators with dynamic levels - Live digital readings for precise monitoring - Smooth, responsive visual feedback 3. Advanced Spirit Box Communication - Generates real-time audio responses from a large phonetic word bank - Simulates EVP (Electronic Voice Phenomena) for spirit interaction - Wide range of voice types: whispers, tones, echoes, and more - Designed for interactive ghost hunting sessions 4. Dynamic Signal Feedback - Visual changes react instantly to EMF activity - Identify spikes and anomalies in your surroundings 5. Built for Focused Investigations - Minimal, immersive full-screen experience - No unnecessary distractions—just pure functionality - Easy to use for beginners and enthusiasts alike HOW DOES THE EMF DETECTOR WORK? The EMF detector uses your phone’s magnetometer sensor to measure magnetic field strength in your environment. These readings are commonly used in paranormal investigations to identify unusual fluctuations that may indicate environmental changes. As you move your device, the app displays real-time EMF levels through a responsive meter, helping you visualize shifts in energy around you. HOW DOES THE SPIRIT BOX WORK? A spirit box is a popular tool in paranormal research, designed to generate audio from a phonetic word bank. These sounds can be interpreted as responses during ghost hunting sessions. Spirit Box: Ghost EMF simulates this process by rapidly producing words, tones, and fragments of speech, allowing users to listen for patterns or meaningful interactions during investigations. DESIGNED FOR PARANORMAL EXPLORATION Whether you're exploring: - Haunted locations - Abandoned places - Dark rooms or unfamiliar environments This app provides a simple way to scan for energy changes and experiment with spirit communication. No expensive equipment needed—your phone becomes a portable paranormal toolkit. WHY CHOOSE SPIRIT BOX: GHOST EMF? - Combines EMF detection and spirit box features in one app - Real-time readings with responsive visual feedback - Immersive and easy-to-use interface - Perfect for both beginners and experienced ghost hunting enthusiasts IMPORTANT DISCLAIMER Spirit Box: Ghost EMF is intended for entertainment purposes only. It does not provide scientifically proven paranormal detection and relies entirely on your device’s built-in sensors and simulated audio generation. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

ESP Challenge4 screens
Spirit Box4 screens

Verdict

The call

The clearest difference is in-app purchases: ESP Challenge at none against Spirit Box's 3. ESP Challenge also leads on iOS requirement (15.6 vs 17.6). On price, ads and device support 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. Spirit Box sells 3 in-app purchases, starting at $6.99 per month. ESP Challenge asks for nothing beyond the download.

Scorecard2 real differences · 7 level
ESP Challenge versus Spirit Box: the parameters behind the verdict, then further details
ParameterESP ChallengeSpirit Box
PriceFreeFree
Rating—4.9 (15 ratings) — better
Number of ratings—15 — better
Update frequency—Every 6 weeks
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.6 — better17.6
Further details — not scored
Size6 MB18 MB
Age rating4+9+
DeveloperAlper OzdilHoang Le

In-app purchases

None

ESP Challenge

No in-app purchases

3 purchases

Spirit Box

Subscriptions2
  • Month Pass$6.991 Month
  • Year Pass$39.991 Year
One-time1
  • Lifetime Access$49.99

Questions

Is ESP Challenge free?
ESP Challenge is free to download, with no in-app purchases.
Is Spirit Box free?
Spirit Box is free to download, with in-app purchases available.
Do ESP Challenge or Spirit Box have ads?
Neither ESP Challenge nor Spirit Box shows ads.

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