Comparison

Paranoia Text Encryption PRO vs Easy Subtraction

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

Head to head
About

Paranoia Text Encryption PRO

Securely encrypt and decrypt sensitive text data using a wide range of advanced algorithms. Protect notes, messages, and cryptocurrency keys. Features steganography to hide data within images and post-quantum key exchange.

Highlights
  • Multiple strong encryption algorithms
  • Steganography for image data hiding
  • Post-quantum key encapsulation (KEM)
  • Unlimited password management
  • Cross-platform compatibility (iOS, macOS)
  • Copy/paste and file saving
Features
Currently charting
Read full description

• Paranoia Text Encryption PRO is a universal text encryption application for iOS (iPhone/iPad/iPod) and macOS by Paranoia Works. • Paranoia Text Encryption ensures the safety of your notes, SMS messages, emails, social networking posts, cryptocurrency keys (seeds, mnemonics), and any other text from all unwanted readers. • The app offers true security, encrypting data using the strongest encryption algorithms available: Threefish 1024-bit, SHACAL-2 512-bit, Paranoia C4 2048-bit (a cascade of Threefish, Serpent, AES, and SHACAL-2), Blowfish 448-bit, AES 256-bit, RC6 256-bit, Serpent 256-bit, and Twofish 256-bit ciphers. • Simply copy and paste text to and from your favorite applications, or save it to a file for future use. • This app does not function as a "Vault application." Instead, a password is set for the current encryption/decryption session, not for entering the app itself. You may have an unlimited number of passwords for any purpose—different files, tasks, people, etc. • Steganography: The application offers steganographic features, allowing you to conceal text or files within a JPEG image. Two algorithms are available: J-UNIWARD (content-adaptive, minimizes visual distortion, harder to detect) and F5 (matrix encoding, efficient embedding). The selected algorithm works with your chosen symmetric cipher to create the final steganogram. • Key Encapsulation (KEM): Securely exchange encryption passwords using the post-quantum ML-KEM mechanism (NIST FIPS 203). Two parties can establish a shared password without ever transmitting it directly, with protection against future quantum computer attacks. ◆ Differences between Free and PRO versions: The PRO version offers additional encryption algorithms, specifically Threefish 1024-bit, SHACAL-2 512-bit, and Paranoia C4 2048-bit (a cascade of Threefish–Serpent–AES–SHACAL-2). While the free version can decrypt data encrypted by these advanced algorithms, the ability to encrypt data using them is exclusive to the PRO version. The PRO version also provides a key to activate the PRO versions of our desktop applications: Paranoia File & Text Encryption for PC, Paranoia Text Encryption for PC, and S.S.E. File Encryptor for PC. • The application is directly compatible with macOS (10.15 and later). Versions for other systems and platforms are available on the application's homepage (download section - https://paranoiaworks.mobi/download/). • An online (web-based) version, utilizing AES and client-side JavaScript, and other utilities are available at https://pteo.paranoiaworks.mobi

About

Easy Subtraction

Features
Read full description

Easily compare images. Obtain difference images in as few as two taps. Use both captured and library images. Operate offline after installation. How to Use: 1. Tap the camera button to take a mask image. 2. Tap the camera button to take a capture image. 3. Once the images are taken, the app will automatically calculate and display the difference image. 4. If the two images are misaligned, adjust the mask image by moving, rotating, and resizing it while checking the resulting difference image. The resulting difference image will highlight the differences between the two images in white (or black if the image is inverted). You can save the resulting image to your iphone library. if you want to know an answer spot-the-difference puzzles right now, be sure to try this app!

Screenshots

Paranoia Text Encryption PRO4 screens
Easy Subtraction4 screens

Verdict

The call

The clearest difference is price: Easy Subtraction at Free against Paranoia Text Encryption PRO's $3.99. Paranoia Text Encryption PRO's advantage is chart position (#189 vs unranked) and device support (4 vs 2). On ads 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

Easy Subtraction is free to download; Paranoia Text Encryption PRO costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard4 real differences · 7 level
Paranoia Text Encryption PRO versus Easy Subtraction: the parameters behind the verdict, then further details
ParameterParanoia Text Encryption PROEasy Subtraction
Price$3.99Free — better
Rating4.7 (52 ratings) — better—
Positive reviews83.6% of reviews—
Number of ratings52 — better—
Update frequencyEvery 2 months—
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
Best chart rank#189 — better—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS14.5 — better16.4
Further details — not scored
Size18 MB1 MB
Age rating4+4+
DeveloperFrantisek DvorakHideo Nose

In-app purchases

None

Paranoia Text Encryption PRO

No in-app purchases

None

Easy Subtraction

No in-app purchases

Questions

Is Paranoia Text Encryption PRO free?
Paranoia Text Encryption PRO costs $3.99, with no in-app purchases.
Is Easy Subtraction free?
Easy Subtraction is free to download, with no in-app purchases.
Do Paranoia Text Encryption PRO or Easy Subtraction have ads?
Neither Paranoia Text Encryption PRO nor Easy Subtraction shows ads.

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