# Invisure — Secure message encryption > Secure message encryption app with AES-256-GCM and password protection. (iPhone/iPad app by Lithium ehf.) - Source: https://appshunter.io/ios/app/invisure/id6745997551 (this page in markdown: same URL + `.md`) - Developer: [Lithium ehf](https://appshunter.io/developer/1583999127) - Category: Utilities, Business - Price: Free with in-app purchases - Rating: 5.00/5 from 2 App Store ratings - Age rating: 4+ - Requires: iOS 18.4 · 1 MB - Languages: American English - Released: 2025-05-20 - Data updated: 2026-09-04 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/invisure/id6745997551/reviews.md ## What is Invisure? 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/ ## Key features - AES-256-GCM encryption - Password-based security - Zero data storage - No account required - Auto-clear sensitive data - Dark mode support ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Unlimited Decryptions | $0.99 | per month | ## Frequently asked questions about Invisure ### What is Invisure? Invisure is a utility app that provides military-grade AES-256-GCM encryption for messages. It allows users to encrypt and decrypt sensitive text securely using a password, ensuring privacy and data protection. ### How does Invisure protect my privacy? Invisure prioritizes privacy by having zero data storage on its servers, requiring no account sign-up, and not using tracking or analytics. All cryptographic operations are performed locally on your device. ### What kind of information can I share securely with Invisure? You can securely share personal details, identification numbers, financial information, account credentials, business plans, confidential notes, private messages, and access codes. The app is designed for any sensitive data you need to protect. ### Does Invisure have ads? No, Invisure does not contain advertisements. The app focuses on providing a clean and secure user experience without interruptions from ads. ### What are the technical security details of Invisure? Invisure uses AES-256-GCM for confidentiality and authentication, PBKDF2 with HMAC-SHA256 for secure key derivation, and unique random salts for each encryption. It also includes authentication tags to verify message integrity. ### What is the auto-clear feature in Invisure? The auto-clear feature in Invisure removes sensitive data after viewing, with a customizable timeout of 1-5 minutes. This ensures that encrypted messages are not left accessible on your device after they have been used. ### What devices does Invisure support? Currently, Invisure is supported on iPhone devices. Future platform expansions may be considered based on user demand and development resources. ### What is the pricing for Invisure? Invisure is free to download and use. There is an optional subscription plan for 'Unlimited Decryptions' at $0.99 per month, which may be relevant for heavy users. ## Version history (last 3 releases) ### 2.2 — 2025-06-11 - Minor UI changes ### 2.1 — 2025-06-03 • Enhanced security features for better data protection • Improved auto-clear functionality for a more secure experience • Optimized memory management for better performance ### 1.0 — 2025-05-20 No release notes. ## Apps similar to Invisure | App | Rating | Price | Category | | --- | --- | --- | --- | | [CryptoBox Pro](https://appshunter.io/ios/app/cryptobox-pro/id6741482389) | — | Free | Utilities | | [Pico Rivera VCH](https://appshunter.io/ios/app/pico-rivera-vch/id1028645232) | 3.0 (2) | Free | Utilities | | [encyfr](https://appshunter.io/ios/app/encyfr/id6478423739) | — | Free | Utilities | | [Net Skip](https://appshunter.io/ios/app/net-skip/id1640618584) | 3.3 (3) | Free | Utilities | | [Hisobchi AI - Kirim va Chiqim](https://appshunter.io/ios/app/hisobchi-ai-kirim-va-chiqim/id6749608460) | 4.0 (1) | Free | Utilities | | [Encrypto!](https://appshunter.io/ios/app/encrypto/id6446298404) | 5.0 (2) | Free | Utilities | ## More apps by Lithium ehf - [Air Pistol Simulator](https://appshunter.io/ios/app/air-pistol-simulator/id1449969185) - [Albertoholic](https://appshunter.io/ios/app/albertoholic/id1585731505) - [Great Service](https://appshunter.io/ios/app/great-service/id1585733946) - [Great Report](https://appshunter.io/ios/app/great-report/id1589632515) - [Orion Sentry](https://appshunter.io/ios/app/orion-sentry/id1594469593) - [Berghildur](https://appshunter.io/ios/app/berghildur/id6499480926) All apps by Lithium ehf: https://appshunter.io/developer/1583999127 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-04.*