Comparison

TrueEntropy vs Ear Spy Apps

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

Head to head
About

TrueEntropy

This app leverages your smartphone's camera to produce genuine random numbers by capturing thermal noise. It generates a high volume of entropy, suitable for cryptographic purposes, and can output data locally or remotely.

Highlights
  • Generate true random numbers from thermal noise
  • Utilizes smartphone camera sensor
  • High volume entropy generation
  • Output binary files locally
  • Send entropy via cryptographic relays
  • Continuous generation mode
Features
Read full description

TrueEntropy uses your phone's camera to generate true random numbers derived from thermal noise. The camera in your smartphone is so advanced that it can detect even the smallest variations produced by fundamental particle physics. We capture thermal variations in every pixel of your phone's camera to create a powerful, high volume entropy random number generator. No need to move your phone - even if your phone is resting on a desktop, it is able to pick up a sufficient quantity of thermal variations to generate random numbers at a rate of 18Mb per minute. - Generate binary files for local use via AirDrop - Send entropy to a destination machine via cryptographic relays - Continuous generation mode to constantly reseed target machines

About

Ear Spy Apps

Securely hide private photos, videos, and files in a password-protected vault. Capture high-quality audio with advanced recording features, including long-range directional microphones and night vision. Enhance audio clarity and customize sound with EQ adjustments for professional-grade results.

Highlights
  • Secure private vault
  • Advanced audio recording
  • Long-range directional microphone
  • Night vision recording
  • Password protection
  • EQ adjustments
Features
Read full description

Keep important private photos, videos, and files hidden in plain sight! Adaptive Audio Recording for All Environments: ■ Capture high-quality audio with our advanced recorder. ■ Boost audio clarity for professional-grade recordings. ■ Secure your sensitive files with password protection. ■ Customize sound quality with EQ adjustments. Long-Range Directional Microphone: ■ Enhance distant sounds up to 30 feet away, focusing on voices amidst noisy backgrounds. ■ Experience unblemished audio capture, free from unwanted ambient noise. Night Vision Recording: ■ Record in low-light conditions with night vision. Private Vault for Photos, Videos, and Files: ■ Store your confidential photos, videos, and files in a secure, password-protected vault. ■ Ensure your sensitive data remains hidden from prying eyes. ■ Keep everything organized and accessible within the app. Enhanced Privacy: ■ Protect your recordings and data with password encryption. ■ Choose from multiple microphone options for precise recording. ■ Record from the iPhone bottom mic, earpiece, or earbuds. ■ Empower yourself with complete audio and visual control. Enhance your experience with Premium Features: ◆ Noise Reduction: Clear audio in any environment. ◆ Secure Vault: Protect photos, videos, and files. ◆ Dark Mode: Sleek and easy on the eyes. ◆ Powerful Recorder: Advanced recording tools. ◆ Sound Effects: Elevate your audio projects. Upgrade now to unlock these premium benefits! Choose security and control over your sensitive data. Terms of use: https://docs.google.com/document/d/1LoTUoT94Bf7MyGX1JfNs5whsNo8FdZUixn5Eu_PZlUM/edit?usp=sharing Privacy policy: https://docs.google.com/document/d/1x-TBOpV7OaSZmDfrv__aomvytUddMhcXW4vNhsXnjlA/edit?usp=sharing

Screenshots

TrueEntropy3 screens
Ear Spy Apps4 screens

Verdict

The call

The clearest difference is in-app purchases: TrueEntropy at none against Ear Spy Apps's 4. TrueEntropy also leads on iOS requirement (12.0 vs 14.0). Ear Spy Apps's advantage is update cadence (every 5 weeks vs every 41 months) and ratings volume (1.3K vs 11). On price, rating, 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. Ear Spy Apps sells 4 in-app purchases, starting at $5.99 per 7 days. TrueEntropy asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for TrueEntropy against 4.4 for Ear Spy Apps. That said, the two scores are not equally well evidenced: Ear Spy Apps has 1.3K ratings behind it against 11, so its average is the more settled of the two. Written reviews are what separate them: 67% of TrueEntropy's written reviews are positive against 80% of Ear Spy Apps's.

UpkeepUpdate frequency

TrueEntropy ships an update every 41 months, Ear Spy Apps every 5 weeks. The most recent releases landed on November 4, 2026 and November 7, 2026 respectively.

Scorecard6 real differences · 4 level
TrueEntropy versus Ear Spy Apps: the parameters behind the verdict, then further details
ParameterTrueEntropyEar Spy Apps
PriceFreeFree
Rating4.5 (11 ratings) — better4.4 (1.3K ratings)
Positive reviews66.7% of reviews79.7% of reviews — better
Number of ratings111.3K — better
Update frequencyEvery 41 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better14.0
Further details — not scored
Size10 MB45 MB
Age rating4+4+
DeveloperVault12, Inc.Nino Gogoladze

Customer experience

TrueEntropy

All ratings11 ratings
Positive90.9%
Neutral9.1%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral33.3%
Negative0.0%

Ear Spy Apps

All ratings1,216 ratings
Positive83.9%
Neutral7.4%
Negative8.7%
Written reviews241 reviews
Positive79.7%
Neutral4.1%
Negative16.2%

Bugs and requests

TrueEntropy

Not enough reviews yet to summarise bugs or requests.

Ear Spy Apps

Reported bugs

3 issues
  • Can't open existing files
  • No sound recording in free version
  • Won't restore itself after reinstall

Requested features

3 requests
  • Longer free trial period
  • Restore full access after reinstall
  • Reduce ad frequency in free version

In-app purchases

None

TrueEntropy

No in-app purchases

4 purchases

Ear Spy Apps

Subscriptions4
  • Unlimited Access - Weekly$5.997 Days
  • Hearing Amplifier, SpyFall$9.991 Month
  • Hearing Amplifier - Ear Spy$19.993 Months
Show 1 more
  • Tape Recorder, SpyTec3 Days trial$34.991 Year

Questions

Is TrueEntropy free?
TrueEntropy is free to download, with no in-app purchases.
Is Ear Spy Apps free?
Ear Spy Apps is free to download, with in-app purchases available.
Which has better reviews, TrueEntropy or Ear Spy Apps?
TrueEntropy is rated higher. TrueEntropy averages 4.5 out of 5 from 11 ratings, while Ear Spy Apps averages 4.4 from 1.3K ratings.
Do TrueEntropy or Ear Spy Apps have ads?
Neither TrueEntropy nor Ear Spy Apps shows ads.
Which is updated more often, TrueEntropy or Ear Spy Apps?
TrueEntropy ships an update every 41 months, and Ear Spy Apps every 5 weeks. Most recently, TrueEntropy was updated on November 4, 2026 and Ear Spy Apps on November 7, 2026.

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