Comparison

Paranoia Text Encryption PRO vs Scientific Calculator DES

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
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

Scientific Calculator DES

This advanced calculator offers engineers and mathematicians a powerful tool with intuitive, multi-line display and left-to-right data entry. It supports various number bases, notations, and includes extensive statistical analysis and graphing capabilities. All features are available for a one-time purchase.

Highlights
  • Multi-line display with left-to-right entry
  • Supports Hex, Binary, Octal number bases
  • Decimal, Scientific, Fractional notation
  • Angle entry in degrees, radians, gradians, turns
  • 10 Memory Registers
  • Advanced statistics and graphing
  • Import CSV files for data sets
Features
Read full description

The DES-38D is an easy-to-use, multi-line Scientific Calculator with intuitive, left-to-right data entry & display. It was designed and developed by a professional engineer with a variety of features to suit the needs of engineers and mathematicians, including extensive statistical analysis & graphing capabilities. However, it is extremely simple to use and is suitable for anyone who needs an advanced calculator. The name of the DES-38D calculator comes from the fact that it utilizes base-10 arithmetic which can represent numbers with a 38-digit mantissa and an exponent range of -128 to + 127. The DES-38D is universal app that is fully functional in both portrait and landscape modes on all iPad and iPhone devices. No need to rotate to landscape unless you need a wider display area. All current and future features are included for one low price. We will never nag you for more money. KEY FEATURES: • Supports Hex, Binary, and Octal number bases in 64-bit, 32-bit, 16-bit, or 8-bit word lengths • Accepts data entry in Decimal, Scientific, or Fractional notation (& they can be mixed) • Memory and Result data can be displayed in Decimal, Scientific, or Fractional notation independently of how the equation was entered • Angle entry and computations can be performed in degrees, radians, gradians, or turns • 10 Memory Registers • 4 Display Lines: Equations, Result, current Memory Register, and Error/Information Messages • All Display Lines read in normal human, left-to-right form • The [-] key can be used for subtraction or negation as you type - no need to use the [+/-] key after the fact (although you can) • All equations are evaluated, and the Result field is updated "on-the-fly" as you enter your formula. The [=] key merely saves the equation & result to the History/Tape file • All Equations & Results are saved in a History/Tape file • Equations & Results can be recalled from the History/Tape file for reuse in other equations • Sliders to rapidly adjust Display Precision, Decimal-to-Scientific notation switching, and Decimal to Fraction notation switching • Keys for e and π plus a table with many additional scientific and mathematical constants that can easily be included in equations • Extensive built-in help screens • Copy and paste with simple tap and long touch gestures • Use swipe gestures to rapidly display all Memory Registers at once, all Constants, and the History/Tape file • Fast and simple advanced statistics functions - simply enter a data set and instantly get over 90 statistical calculations including 8 different regressions as well as a graphic plot of the regression lines • Up to 10 Statistics Data Sets with the ability to import CSV files and print, email, or share Data Sets and Calculation Results ------------------------------- LIST OF MATH & LOGIC FUNCTIONS • Add, Subtract, Multiply & Divide (of course) • Floored and Euclidean Modulus • Percentages - including Percentage, Add-On, Discount, and Ratio calculations • Square, Cube, and nth roots • Square, Cube, and nth powers • Base-10, Base-2, Base-n, and Natural Logarithms • 24 Trigonometric Functions • Combinations & Permutations • Coordinate Conversions between Polar & Rectangular • A number of Random Number Generators to simulate coin flips, dice throws, card draws and general purpose random numbers • Reciprocals • Factorials & Double Factorials • AND, NAND, OR, NOR, XOR, XNOR, NOT • Shift and Rotate Bits * Advanced Statistics with over 90 statistics values including the results of 8 different regressions plus graphing capability ------------------------- We welcome your feedback. The app includes an email option to send comments or suggestions to us at support@dohmann.com If you enjoy our app, please rate and review us in the App Store. Thank you for using DES-38D.

Screenshots

Paranoia Text Encryption PRO4 screens
Scientific Calculator DES4 screens

Verdict

The call

The clearest difference is review sentiment: Paranoia Text Encryption PRO at 84% against Scientific Calculator DES's 50%. Paranoia Text Encryption PRO also leads on rating (4.7 vs 4.3) and ratings volume (53 vs 3). Scientific Calculator DES's advantage is update cadence (every 5 weeks vs every 2 months) and iOS requirement (12.0 vs 14.5). On ads, in-app purchases, monetization model 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

Paranoia Text Encryption PRO costs $3.99 and Scientific Calculator DES $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Paranoia Text Encryption PRO holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: Paranoia Text Encryption PRO has 53 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 84% of Paranoia Text Encryption PRO's written reviews are positive against 50% of Scientific Calculator DES's.

UpkeepUpdate frequency

Paranoia Text Encryption PRO ships an update every 2 months, Scientific Calculator DES every 5 weeks. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard6 real differences · 4 level
Paranoia Text Encryption PRO versus Scientific Calculator DES: the parameters behind the verdict, then further details
ParameterParanoia Text Encryption PROScientific Calculator DES
Price$3.99 — better$5.99
Rating4.7 (53 ratings) — better4.3 (3 ratings)
Positive reviews83.6% of reviews — better50.0% of reviews
Number of ratings53 — better3
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS14.512.0 — better
Further details — not scored
Size18 MB9 MB
Age rating4+4+
DeveloperFrantisek DvorakDohmann Engineering Services

Customer experience

Paranoia Text Encryption PRO

All ratings52 ratings
Positive92.3%
Neutral1.9%
Negative5.8%
Written reviews55 reviews
Positive83.6%
Neutral7.3%
Negative9.1%

Scientific Calculator DES

All ratings3 ratings
Positive66.7%
Neutral33.3%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

Bugs and requests

Paranoia Text Encryption PRO

Reported bugs

5 issues
  • Free version not working
  • Paid version buggy
  • Data transfer via cellular network (resolved)
  • Incompatible with other steganography apps
  • Not iPhone 6s Plus optimized

Requested features

12 requests
  • PIN for app lock
  • Auto-erase log/history
  • Save session passwords in keychain
  • Integration with quick commands for automation
  • PGP support
Show 7 more
  • File encryption option
  • Dark mode setting
  • Text size settings
  • Search functionality in editor
  • Multiple user use
  • Separate and group storage
  • More encryption algorithm types

Scientific Calculator DES

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Paranoia Text Encryption PRO

No in-app purchases

None

Scientific Calculator DES

No in-app purchases

Questions

Is Paranoia Text Encryption PRO free?
Paranoia Text Encryption PRO costs $3.99, with no in-app purchases.
Is Scientific Calculator DES free?
Scientific Calculator DES costs $5.99, with no in-app purchases.
Which has better reviews, Paranoia Text Encryption PRO or Scientific Calculator DES?
Paranoia Text Encryption PRO is rated higher. Paranoia Text Encryption PRO averages 4.7 out of 5 from 53 ratings, while Scientific Calculator DES averages 4.3 from 3 ratings.
Do Paranoia Text Encryption PRO or Scientific Calculator DES have ads?
Neither Paranoia Text Encryption PRO nor Scientific Calculator DES shows ads.
Which is updated more often, Paranoia Text Encryption PRO or Scientific Calculator DES?
Paranoia Text Encryption PRO ships an update every 2 months, and Scientific Calculator DES every 5 weeks. Most recently, Paranoia Text Encryption PRO was updated on November 1, 2026 and Scientific Calculator DES on November 2, 2026.

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