Krypta ECC vs Iris Chat
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Krypta ECC
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Krypta ECC is a privacy-focused communication app that looks and functions like a regular calculator, but behind a secret code lies a secure, end-to-end encrypted chat system. It's designed for users who want private conversations without drawing attention. A Calculator with a Secret At first glance, Krypta ECC appears to be a simple, fully functional calculator. You can perform normal operations like addition, subtraction, multiplication, division, and percentage calculations. It works exactly as any standard calculator would. However, when you enter your personal secret code and confirm it, the app unlocks a hidden chat interface. Only you know how to access it, making your private messages truly discreet. Private and Secure Messaging Behind the calculator is a fully featured chat system, designed for direct and private communication between users. Each user creates a unique username and a personal app code. The code is stored locally and never shared with any server, ensuring that your access to the chat is entirely secure and private. You can start conversations in two ways: ⢠By username: search and connect directly with another Krypta ECC user. ⢠By invite link: share or open a secure link that instantly starts a chat connection. The messaging interface is simple and familiar, featuring real-time text communication, timestamps, delivery and read indicators, and privacy settings. You can also block unwanted contacts or report misuse directly in the app. End-to-End Encryption Every message you send or receive is protected with end-to-end encryption (RSA-2048 + AES-256-GCM), meaning only you and your chat partner can read the conversation. Even Krypta ECC's servers cannot decrypt or view your messages. All encryption keys are generated and stored locally on your device, never uploaded or shared. Messages are automatically deleted after delivery, ensuring your conversations remain private and temporary. Powered by Firebase Technology Krypta ECC uses Google Firebase to provide reliability, speed, and scalability: ⢠Firestore: Real-time chat and message storage ⢠Firebase Authentication: Secure and simple user management ⢠Cloud Functions: Serverless automation for invites and moderation Discreet and Intuitive Design The app is designed for maximum discretion. No one will ever suspect there's a hidden chat behind your calculator. You can quickly return to the calculator screen at any time with a simple gesture or tap, making it safe to use in public or shared environments. The interface is clean, minimalist, and familiar. Whether you are calculating something or chatting securely, the experience is smooth, fast, and distraction-free. Privacy by Design Krypta ECC is built around privacy principles. Your personal information, conversations, and contacts are not tracked, analyzed, or sold. Only the essential data required for functionality is stored. The app follows GDPR-compliant data handling and allows you to delete your account and all related data at any time. No advertising, no tracking, no profiling ā just secure, private communication. Content Moderation Krypta ECC includes comprehensive content moderation: ⢠Automatic filtering of objectionable content ⢠Report functionality for inappropriate behavior ⢠Block functionality to remove unwanted contacts ⢠Developer contact information available in Settings ⢠All reports reviewed within 24 hours
Iris Chat
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Iris Chat is a private messaging app for direct and group chats. Your secret key and message history stay on your devices, and encrypted messages move through message servers you choose. Use Iris Chat to: - Chat one-to-one or in groups - Link your devices with a code - Attach photos and files - Keep messages moving nearby over Bluetooth or Wi-Fi when you turn it on - Block or report unwanted contacts Iris Chat does not include third-party analytics, advertising SDKs, or behavioral tracking.
Screenshots
Verdict
The clearest difference is update cadence: Iris Chat at every 5 days against Krypta ECC's monthly. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Krypta ECC ships an update monthly, Iris Chat every 5 days. The most recent releases landed on September 12, 2026 and September 29, 2026 respectively.
| Parameter | Krypta ECC | Iris Chat |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Every 5 days ā better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad ā better |
| Requires iOS | 16.0 | 16.0 |
| Further details ā not scored | ||
| Size | 66 MB | 84 MB |
| Age rating | 17+ | 4+ |
| Developer | Connexa GmbH (CH) | Sirius Business Oy |
In-app purchases
Krypta ECC
No in-app purchases
Iris Chat
No in-app purchases









