Comparison

Sudo Encrypt vs Invisure

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

Head to head
About

Sudo Encrypt

Securely encrypt and decrypt messages using RSA encryption. Generate your own keypairs, import others' public keys, and sign/verify message signatures. Seamlessly integrate with iMessage for easy sharing of encrypted content.

Highlights
  • Generate RSA keypairs locally
  • Encrypt messages with public keys
  • Decrypt messages with private keys
  • Sign and verify message signatures
  • iMessage extension for seamless integration
  • Embed encrypted messages as iMessage objects
Features
Read full description

- Generate RSA keypairs locally - Import others' public keys and encrypt messages to send to others - Decrypt messages others sent to you with your private key - Sign / Verify message signature Best of all, encryption and decryption of messages can be done directly in the iMessage app. When using the in-app extension, you no longer have to send a long piece of string, the encrypted message is embedded into an iMessage object so the other side can just click and decrypt.

About

Invisure

Encrypt sensitive messages with military-grade security using a simple interface. Protect personal details, financial information, and private conversations with AES-256-GCM encryption and password protection. Your privacy is paramount with zero data storage and no account required.

Highlights
  • AES-256-GCM encryption
  • Password-based security
  • Zero data storage
  • No account required
  • Auto-clear sensitive data
  • Dark mode support
Features
Read full description

Invisure: Secure Message Encryption Invisure puts military-grade encryption in your hands with a simple, elegant interface designed for maximum privacy and security. When you need to share sensitive information, Invisure ensures your data remains protected. Powerful Security, Simple to Use Encrypt any message with AES-256-GCM encryption - the same standard trusted by governments and financial institutions worldwide. Just type your message, set a password, and encrypt with a single tap. Share the encrypted text through any communication channel while keeping your information completely secure. Your Privacy Comes First Invisure is built with privacy at its core: • Zero data storage - nothing is ever saved to our servers • No account required - use the app instantly with no sign-up • No tracking or analytics - your usage remains completely private • Auto-clear feature removes sensitive data after viewing Perfect for Sharing Sensitive Information Invisure makes it safe to share: • Personal details and identification numbers • Financial information and account credentials • Business plans and confidential notes • Private messages and sensitive conversations • Access codes and passwords How It Works 1. Enter the text you want to encrypt 2. Create a password to secure your message 3. Tap "Encrypt" to convert your message to secure encrypted text 4. Share the encrypted text through any app or platform 5. Provide the password separately to your recipient 6. They use Invisure to decrypt your message securely Key Features • Military-grade AES-256-GCM encryption • Password-based key derivation with 10,000 rounds • Customizable auto-clear timeout (1-5 minutes) • Clean interface with dark mode support • Copy and share options for encrypted text • One-tap clipboard access for convenience • Complete privacy with zero data collection Technical Security Details Invisure uses sophisticated cryptographic techniques to ensure maximum security: • AES-256-GCM provides both confidentiality and authentication • PBKDF2 with HMAC-SHA256 for secure key derivation • Unique random salt for each encryption operation • Authentication tags to verify message integrity • All cryptographic operations performed locally on your device Designed for Privacy We believe privacy is a fundamental right. Invisure is designed to leave no trace of your sensitive communications: • All operations happen entirely on your device • Messages are only held temporarily in device memory • Data is automatically cleared when switching screens • No logs or backups of your messages are ever created Invisure is the perfect solution when you need to share sensitive information but don't want to compromise on security or privacy. Simple, powerful encryption for everyone. Privacy Policy link: https://lithium.is/privacy-policy/ Terms of Use (EULA) link: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Sudo Encrypt3 screens
Invisure4 screens

Verdict

The call

The clearest difference is in-app purchases: Sudo Encrypt at none against Invisure's 1. Sudo Encrypt also leads on device support (3 vs 1) and ratings volume (6 vs 2). Invisure's advantage is rating (5.0 vs 4.7). On price, update cadence 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. Invisure sells 1 in-app purchase, starting at $0.99 per month. Sudo Encrypt asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Invisure holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 6 and 2 respectively.

UpkeepUpdate frequency

Sudo Encrypt ships an update every 9 days, Invisure every 2 weeks. The most recent releases landed on October 4, 2026 and September 29, 2026 respectively.

Scorecard6 real differences · 4 level
Sudo Encrypt versus Invisure: the parameters behind the verdict, then further details
ParameterSudo EncryptInvisure
PriceFreeFree
Rating4.7 (6 ratings)5.0 (2 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings6 — better2
Update frequencyEvery 9 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better18.4
Further details — not scored
Size2 MB1 MB
Age rating4+4+
DeveloperShunzhe MaLithium ehf

Customer experience

Sudo Encrypt

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Invisure

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Sudo Encrypt

No in-app purchases

1 purchases

Invisure

Subscriptions1
  • Unlimited Decryptions$0.991 Month

Questions

Is Sudo Encrypt free?
Sudo Encrypt is free to download, with no in-app purchases.
Is Invisure free?
Invisure is free to download, with in-app purchases available.
Which has better reviews, Sudo Encrypt or Invisure?
Invisure is rated higher. Sudo Encrypt averages 4.7 out of 5 from 6 ratings, while Invisure averages 5.0 from 2 ratings.
Do Sudo Encrypt or Invisure have ads?
Neither Sudo Encrypt nor Invisure shows ads.
Which is updated more often, Sudo Encrypt or Invisure?
Sudo Encrypt ships an update every 9 days, and Invisure every 2 weeks. Most recently, Sudo Encrypt was updated on October 4, 2026 and Invisure on September 29, 2026.

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