Comparison

Paranoia Text Encryption Lite vs Ruler Studio

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 Lite

Securely encrypt and decrypt sensitive text data, including notes, messages, and cryptocurrency keys. Offers robust security with multiple strong encryption algorithms and advanced steganography features to hide data within images. Also supports secure password exchange using post-quantum cryptography.

Highlights
  • Text encryption and decryption
  • Steganography (hide text in JPEG)
  • Post-quantum key encapsulation
  • Multiple strong encryption algorithms
  • Copy/paste and file saving
  • Session-based password management
Features
Read full description

• Paranoia Text Encryption is a comprehensive text encryption application for iOS devices (iPhone/iPad/iPod) and macOS, developed by Paranoia Works. • Paranoia Text Encryption safeguards your notes, SMS messages, emails, social networking posts, cryptocurrency keys (seeds, mnemonics), and any other text from unwanted readers. • 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 to enter the app itself. You may use an unlimited number of passwords for any purpose—different files, tasks, people, etc. • The app guarantees robust security by encrypting data using strong encryption algorithms: Blowfish (448-bit), AES (256-bit), RC6 (256-bit), Serpent (256-bit), and Twofish (256-bit) ciphers. • Steganography: The application includes 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 the chosen symmetric cipher to produce 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), which is 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 these algorithms is exclusive to the PRO version. The PRO version also provides a key to activate the PRO versions of desktop applications: Paranoia File & Text Encryption for PC, Paranoia Text Encryption for PC, and S.S.E. File Encryptor for PC. • The application is natively compatible with macOS (10.15 and later). Versions for other systems and platforms can be downloaded from the application homepage: 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

Ruler Studio

Features
Read full description

Precise measuring tools Ruler, grid, calibration, and ring sizing in one clean workspace. Ruler & Grid Studio High-precision multi-unit rulers with a built-in grid for everyday measurements. Smart Ring Sizer Align a real ring with the guide to estimate diameter, circumference, and size. Card Calibration Use a standard card edge to improve real-world measurement accuracy. Free Measuring Toolkit Full-screen grids, scale presets, and measurement overlays are included for everyone. Precise ruler, grid, calibration, and ring sizing tools.

Screenshots

Paranoia Text Encryption Lite4 screens
Ruler Studio4 screens

Verdict

The call

The clearest difference is in-app purchases: Paranoia Text Encryption Lite at none against Ruler Studio's 1. On price, update cadence, 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. Ruler Studio sells 1 one-off in-app purchase. Paranoia Text Encryption Lite asks for nothing beyond the download.

UpkeepUpdate frequency

Paranoia Text Encryption Lite ships an update every 2 months, Ruler Studio every 6 weeks. The most recent releases landed on October 6, 2026 and October 10, 2026 respectively.

Scorecard1 real difference · 9 level
Paranoia Text Encryption Lite versus Ruler Studio: the parameters behind the verdict, then further details
ParameterParanoia Text Encryption LiteRuler Studio
PriceFreeFree
Rating4.5 (84 ratings) — better—
Positive reviews74.1% of reviews—
Number of ratings84 — better—
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS14.513.0 — better
Further details — not scored
Size18 MB19 MB
Age rating4+4+
DeveloperFrantisek DvorakSpyridon Bousios

In-app purchases

None

Paranoia Text Encryption Lite

No in-app purchases

1 purchases

Ruler Studio

One-time1
  • Ruler Pro Lifetime$2.99

Questions

Is Paranoia Text Encryption Lite free?
Paranoia Text Encryption Lite is free to download, with no in-app purchases.
Is Ruler Studio free?
Ruler Studio is free to download, with in-app purchases available.
Do Paranoia Text Encryption Lite or Ruler Studio have ads?
Neither Paranoia Text Encryption Lite nor Ruler Studio shows ads.
Which is updated more often, Paranoia Text Encryption Lite or Ruler Studio?
Paranoia Text Encryption Lite ships an update every 2 months, and Ruler Studio every 6 weeks. Most recently, Paranoia Text Encryption Lite was updated on October 6, 2026 and Ruler Studio on October 10, 2026.

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