Comparison

Paranoia Text Encryption Lite vs Hidden Message Dot App

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

Hidden Message Dot App

Send secret messages that appear normal to others but reveal a hidden part only to your intended recipient. Protect your conversations with an optional passcode for enhanced privacy. Supports numerous messaging platforms and email.

Highlights
  • Hidden message functionality
  • Passcode protection
  • Supports iMessage, WhatsApp, Telegram, and more
  • Works with emails and websites
  • No server or internet usage
  • Data privacy focused
Features
Read full description

While looking just like an ordinary message for an outsider, a message created with "Hidden Message" has a hidden part that is visible only to you and your friend. This hidden message is shown neither in the message history nor on the lock screen. To keep it even more private, you can set a passcode to access your private messages. This app is useful for maintaining your everyday privacy as well as for protecting your business correspondence. "Hidden Message" supports all popular IM services: iMessage, LinkedIn, WhatsApp, Viber, Facebook Messenger, VK, Hangouts, WeChat, Talk, Telegram, Line and others, it even support emails, websites, any place you can put text message in it. "Hidden Message" respects privacy, we don't use servers or internet, your message is really hidden, we don't use any third party code or collect any data. Remember to use this for private use and not to misuse.

Screenshots

Paranoia Text Encryption Lite4 screens
Hidden Message Dot App4 screens

Verdict

The call

The clearest difference is in-app purchases: Paranoia Text Encryption Lite at none against Hidden Message Dot App's 1. Hidden Message Dot App's advantage is update cadence (every 5 days vs every 2 months) and ratings volume (429 vs 84). On price, rating, review sentiment and ads 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. Hidden Message Dot App sells 1 one-off in-app purchase. Paranoia Text Encryption Lite 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 Paranoia Text Encryption Lite against 4.5 for Hidden Message Dot App. That said, the two scores are not equally well evidenced: Hidden Message Dot App has 429 ratings behind it against 84, so its average is the more settled of the two. Written reviews are what separate them: 74% of Paranoia Text Encryption Lite's written reviews are positive against 77% of Hidden Message Dot App's.

UpkeepUpdate frequency

Paranoia Text Encryption Lite ships an update every 2 months, Hidden Message Dot App every 5 days. The most recent releases landed on October 6, 2026 and October 4, 2026 respectively.

Scorecard4 real differences · 6 level
Paranoia Text Encryption Lite versus Hidden Message Dot App: the parameters behind the verdict, then further details
ParameterParanoia Text Encryption LiteHidden Message Dot App
PriceFreeFree
Rating4.5 (84 ratings)4.5 (429 ratings)
Positive reviews74.1% of reviews76.7% of reviews — better
Number of ratings84429 — better
Update frequencyEvery 2 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS14.514.1 — better
Further details — not scored
Size18 MB3 MB
Age rating4+4+
DeveloperFrantisek Dvoraki4islam

Customer experience

Paranoia Text Encryption Lite

All ratings84 ratings
Positive84.5%
Neutral4.8%
Negative10.7%
Written reviews27 reviews
Positive74.1%
Neutral7.4%
Negative18.5%

Hidden Message Dot App

All ratings429 ratings
Positive87.2%
Neutral4.4%
Negative8.4%
Written reviews30 reviews
Positive76.7%
Neutral6.7%
Negative16.7%

Bugs and requests

Paranoia Text Encryption Lite

Not enough reviews yet to summarise bugs or requests.

Hidden Message Dot App

Reported bugs

4 issues
  • Paid passcode feature does not work
  • Messages lead to 'no server found' error
  • App is not compatible with VoiceOver
  • App lags significantly

Requested features

3 requests
  • Add support for older devices (iPhone 6, iOS 12)
  • Add password protection between parties
  • Consider encryption through steganography (hidden messages in pictures with password protection)

In-app purchases

None

Paranoia Text Encryption Lite

No in-app purchases

1 purchases

Hidden Message Dot App

One-time1
  • Lock Feature$1.99

Questions

Is Paranoia Text Encryption Lite free?
Paranoia Text Encryption Lite is free to download, with no in-app purchases.
Is Hidden Message Dot App free?
Hidden Message Dot App is free to download, with in-app purchases available.
Which has better reviews, Paranoia Text Encryption Lite or Hidden Message Dot App?
Paranoia Text Encryption Lite and Hidden Message Dot App are both rated 4.5 out of 5 on the App Store, from 84 and 429 ratings respectively.
Do Paranoia Text Encryption Lite or Hidden Message Dot App have ads?
Neither Paranoia Text Encryption Lite nor Hidden Message Dot App shows ads.
Which is updated more often, Paranoia Text Encryption Lite or Hidden Message Dot App?
Paranoia Text Encryption Lite ships an update every 2 months, and Hidden Message Dot App every 5 days. Most recently, Paranoia Text Encryption Lite was updated on October 6, 2026 and Hidden Message Dot App on October 4, 2026.

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