Comparison

Paranoia Text Encryption Lite vs Dead Note

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

Dead Note

This app provides a secure and private way to store notes, using your password as the encryption key. Losing your password means losing access to your data, so it's designed for users who prioritize extreme data security.

Highlights
  • Password-based encryption
  • Data corruption on invalid password
  • Private note storage
  • Multi-language support
Features
Read full description

Password = encryption key. Invalid password = Invalid encryption key. Invalid encryption key = data corruption. 密码 = 加密密钥。 密码无效 = 加密密钥无效。 无效的加密密钥 = 数据损坏。 Hasło = klucz szyfrowania. Nieprawidłowe hasło = Nieprawidłowy klucz szyfrowania. Nieprawidłowy klucz szyfrowania = uszkodzenie danych. Пароль = ключ шифрования. Неверный пароль = Неверный ключ шифрования. Неверный ключ шифрования = повреждение данных. Contraseña = clave de cifrado. Contraseña no válida = clave de cifrado no válida. Clave de cifrado no válida = corrupción de datos. Passwort = Verschlüsselungsschlüssel. Ungültiges Passwort = Ungültiger Verschlüsselungsschlüssel. Ungültiger Verschlüsselungsschlüssel = Datenbeschädigung. 암호 = 암호화 키. 잘못된 암호 = 잘못된 암호화 키입니다. 잘못된 암호화 키 = 데이터 손상. كلمة المرور = مفتاح التشفير. كلمة مرور غير صالحة = مفتاح تشفير غير صالح. مفتاح التشفير غير صالح = تلف البيانات. पासवर्ड = एन्क्रिप्शन कुंजी। अमान्य पासवर्ड = अमान्य एन्क्रिप्शन कुंजी। अमान्य एन्क्रिप्शन कुंजी = डेटा भ्रष्टाचार। Mot de passe = clé de cryptage. Mot de passe invalide = clé de cryptage invalide. Clé de cryptage invalide = corruption des données. סיסמה = מפתח הצפנה. סיסמה לא חוקית = מפתח הצפנה לא חוקי. מפתח הצפנה לא חוקי = שחיתות נתונים. Senha = chave de criptografia. Senha inválida = chave de criptografia inválida. Chave de criptografia inválida = corrupção de dados. パスワード=暗号化キー。 無効なパスワード=無効な暗号化キー。 無効な暗号化キー=データの破損。 Şifre = şifreleme anahtarı. Geçersiz parola = Geçersiz şifreleme anahtarı. Geçersiz şifreleme anahtarı = veri bozulması. Heslo = šifrovací klíč. Neplatné heslo = Neplatný šifrovací klíč. Neplatný šifrovací klíč = poškození dat. Wachtwoord = encryptiesleutel. Ongeldig wachtwoord = Ongeldige coderingssleutel. Ongeldige coderingssleutel = gegevensbeschadiging. Κωδικός πρόσβασης = κλειδί κρυπτογράφησης. Μη έγκυρος κωδικός πρόσβασης = Μη έγκυρο κλειδί κρυπτογράφησης. Μη έγκυρο κλειδί κρυπτογράφησης = καταστροφή δεδομένων. Mật khẩu = khóa mã hóa. Mật khẩu không hợp lệ = Khóa mã hóa không hợp lệ. Khóa mã hóa không hợp lệ = hỏng dữ liệu. Jelszó = titkosítási kulcs. Érvénytelen jelszó = Érvénytelen titkosítási kulcs. Érvénytelen titkosítási kulcs = adatsérülés. Parolă = cheie de criptare. Parolă invalidă = Cheie de criptare nevalidă. Cheie de criptare nevalidă = coruperea datelor. Lösenord = krypteringsnyckel. Ogiltigt lösenord = Ogiltig krypteringsnyckel. Ogiltig krypteringsnyckel = datakorruption. Wagwoord = enkripsiesleutel. Ongeldige wagwoord = Ongeldige enkripsiesleutel. Ongeldige enkripsiesleutel = datakorrupsie. Password = chiave di crittografia. Invalid password = Chiave di crittografia non valida. Chiave di crittografia non valida = danneggiamento dei dati. ... Profit!

Screenshots

Paranoia Text Encryption Lite4 screens
Dead Note4 screens

Verdict

The call

The clearest difference is rating: Paranoia Text Encryption Lite at 4.5 against Dead Note's 3.7. Paranoia Text Encryption Lite also leads on ratings volume (84 vs 3). Dead Note's advantage is iOS requirement (11.0 vs 14.5). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Paranoia Text Encryption Lite holds the better App Store score, 4.5 against 3.7. That said, the two scores are not equally well evidenced: Paranoia Text Encryption Lite has 84 ratings behind it against 3, so its average is the more settled of the two.

Scorecard3 real differences · 7 level
Paranoia Text Encryption Lite versus Dead Note: the parameters behind the verdict, then further details
ParameterParanoia Text Encryption LiteDead Note
PriceFreeFree
Rating4.5 (84 ratings) — better3.7 (3 ratings)
Positive reviews74.1% of reviews—
Number of ratings84 — better3
Update frequencyEvery 2 months—
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS14.511.0 — better
Further details — not scored
Size18 MB12 MB
Age rating4+4+
DeveloperFrantisek Dvorakar-generation

Customer experience

Paranoia Text Encryption Lite

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

Dead Note

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

Paranoia Text Encryption Lite

No in-app purchases

None

Dead Note

No in-app purchases

Questions

Is Paranoia Text Encryption Lite free?
Paranoia Text Encryption Lite is free to download, with no in-app purchases.
Is Dead Note free?
Dead Note is free to download, with no in-app purchases.
Which has better reviews, Paranoia Text Encryption Lite or Dead Note?
Paranoia Text Encryption Lite is rated higher. Paranoia Text Encryption Lite averages 4.5 out of 5 from 84 ratings, while Dead Note averages 3.7 from 3 ratings.
Do Paranoia Text Encryption Lite or Dead Note have ads?
Neither Paranoia Text Encryption Lite nor Dead Note shows ads.

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