Comparison

ER70 EVP Recorder vs SPI

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

Head to head
About

ER70 EVP Recorder

This app emulates a vintage digital recorder known for capturing electronic voice phenomena. It features a realistic signal path, 3D styling with dynamic lighting, and voice-activated recording. Sessions are limited to seven minutes for easier review and sharing.

Highlights
  • Emulates legendary vintage digital recorder
  • Realistic 3D styling with dynamic lighting
  • Voice-activated recording
  • Seven-minute recording sessions
  • Tagging and geolocation for recordings
  • Easy file saving, sharing, and renaming
  • Accessibility features
Features
Read full description

From the creators of Spirit Story Box, the ER70 EVP Recorder emulates a discontinued vintage physical digital recorder which is famous for capturing Electronic Voice Phenomena (EVPs). The ER70 EVP recorder is for entertainment purposes only. Here are some key features: • Legendary Signal Path: Replicates the signal path of a famous 1990’s digital recorder which currently sells for thousands of dollars on online auction sites • 3D styling: inspired by the aesthetics of original device, the ER70 is dynamically rendered in realtime, and set against 360º photographs of haunted and scenic locations • Physical Based Rendering (PBR): Lighting and reflections change as iPhone is rotated • Simple operation: Easy to use, difficult to mess up • Voice Activated System: Let the app automatically record audio changes. Watch for the blink! • Seven Minute Sessions: The ER70 limits sessions to seven minute intervals. No more searching through hours-long recordings • Tagging: the ability to log where in a recording an anomaly can be heard • Easy saving and sharing: How many files get stuck on your physical digital recorder? • 5-second skip and rewind: It shouldn't be difficult to quickly review a file with your friends. • Optional Geolocation: Have you ever recorded a file and later wondered where the EVP session took place? • Favoriting: You should be able to identify your best recordings at a glance. • Easy file renaming: Renaming a recording is as simple as slowly tapping twice on a file name. • Accessibility features: For persons with disabilities Instead of heavily investing in a used piece of gear which is destined to wear out, why not spend a fraction of that on an app which offers so much more?

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

Screenshots

ER70 EVP Recorder4 screens
SPI4 screens

Verdict

The call

The clearest difference is price: SPI at Free against ER70 EVP Recorder's $6.99. ER70 EVP Recorder's advantage is in-app purchases (none vs 4) and review sentiment (83% vs 60%). On rating, ratings volume, 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

SPI is free to download; ER70 EVP Recorder costs $6.99 up front. SPI sells 4 in-app purchases, starting at $4.99 per month. ER70 EVP Recorder asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ER70 EVP Recorder holds the better App Store score, 4.9 against 4.8. Both are backed by a comparable volume of ratings — 11 and 8 respectively. Written reviews point the same way: 83% of ER70 EVP Recorder's written reviews are positive against 60% of SPI's.

Scorecard6 real differences · 5 level
ER70 EVP Recorder versus SPI: the parameters behind the verdict, then further details
ParameterER70 EVP RecorderSPI
Price$6.99Free — better
Rating4.9 (11 ratings) — better4.8 (8 ratings)
Positive reviews83.3% of reviews — better59.6% of reviews
Number of ratings11 — better8
Update frequency—Every 6 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree — better
Best chart rank#136 — better—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size441 MB70 MB
Age rating9+17+
DeveloperStreamside Software, LLCSpirit Phone Innovations LLC

Customer experience

ER70 EVP Recorder

All ratings11 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

SPI

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

Bugs and requests

ER70 EVP Recorder

Not enough reviews yet to summarise bugs or 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

In-app purchases

None

ER70 EVP Recorder

No 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

Questions

Is ER70 EVP Recorder free?
ER70 EVP Recorder costs $6.99, with no in-app purchases.
Is SPI free?
SPI is free to download, with in-app purchases available.
Which has better reviews, ER70 EVP Recorder or SPI?
ER70 EVP Recorder is rated higher. ER70 EVP Recorder averages 4.9 out of 5 from 11 ratings, while SPI averages 4.8 from 8 ratings.
Do ER70 EVP Recorder or SPI have ads?
Neither ER70 EVP Recorder nor SPI shows ads.

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