# IRONDOTS CHAT — secure messaging over sound > Encrypted text messaging via sound waves, no internet required. (iPhone/iPad app by MICHAL NAPIORKOWSKI IT.) - Source: https://appshunter.io/ios/app/irondots-chat/id6736770133 (this page in markdown: same URL + `.md`) - Developer: [MICHAL NAPIORKOWSKI IT](https://appshunter.io/developer/1622191838) - Category: Utilities - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 14.0 · 36 MB - Languages: Arabic, Catalan, Croatian, Czech, Danish, Dutch, English, Finnish, French, German and 22 more - Released: 2024-11-09 - Data updated: 2026-06-04 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/irondots-chat/id6736770133/reviews.md ## What is IRONDOTS CHAT? IRONDOTS CHAT allows you to send and receive encrypted text messages through sound waves. The app does not connect to the internet and all encrypted messages are only transmitted by sound or ultrasound. To receive incoming messages, you only need to allow access to your device's microphone. THE IRONDOTSCHAT PRINCIPLE IRONDOTSCHAT protects your messages from access by hackers, companies and governments through physical separation and end-to-end encryption. The app can be used completely anonymously (without registration; without providing a phone number or email address). IRONDOTS is based on the "box" model of the open source NaCl Networking and Cryptography Library to transmit messages with a maximum length of 40 characters encrypted through sound waves. COMMUNICATE WITHOUT TRACES IRONDOTSCHAT is designed for offline operation, without an internet connection. We have simply not implemented the possibility to communicate with the Internet or other devices. Your secret certificate is stored encrypted with your password on the mobile phone/tablet. All this prevents the collection and misuse of personal information. IRONDOTS is fully compliant with the European Data Protection Act (DPA). BEST ENCRYPTION All messages are always end-to-end encrypted. You can be sure that no one except the intended recipient can read your messages. The key pair is generated and stored encrypted directly on your device. 256-bit long asymmetric keys are used, which are generated using elliptic curve cryptography (Curve25519). This asymmetric key is used to obtain a unique 256-bit symmetric key for each message sent. NO ADS, NO TRACKERS, NO COOKIES IRONDOTSCHAT is not financed by advertising and does not collect user data. SUPPORT / CONTACT Support: security@irondots.com ## Key features - Encrypted text messaging via sound - Offline operation, no internet needed - Anonymous usage, no registration required - End-to-end encryption - Physical separation for security - Compliant with European Data Protection Act ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Export/Import Private Key | $29.99 | one-time | ## Recent user reviews (5 of 5) All indexed reviews: https://appshunter.io/ios/app/irondots-chat/id6736770133/reviews.md ### 5/5 — Sehr gute App *2025-10-06, version 1.0.4* Die Anleitung findet man auf der Homepage. Die App habe ich in der Sendung „Die Höhle der Löwen“ gesehen und es sofort getestet. Im Gegensatz zu den Löwen (F.) wurde sofort erkannt, dass der Entwickler hier Ahnung und Verstand hat! Weiter so… ### 1/5 — Quatsch App *2025-10-06, version 1.0.4* Also die App macht absolut keinen Sinn. 1. dauert es erstmal ewig bis man sich in der App zurechtfindet und 2. funktioniert die Kommunikation nur, wenn man direkt nebeneinander sitzt und alles leise ist. Nutzlos 🥴 ### 1/5 — Funktioniert nicht *2025-10-06, version 1.0.4* Die app funktioniert nicht ### 5/5 — Ausgezeichnete App zur sicheren Kommunikation! *2024-11-28, version 1.0.3* Hervorragender Schutz vor Pegasus und Co! Leicht zu bedienen und absolut sicher. ### 5/5 — So schützen Sie sich vor Pegasus, Chrysaor und anderer mobiler Malware *2024-11-13, version 1.0.3* Der Irondots Chat für sichere Kommunikation ist genau das, was ich gesucht habe! Alle Nachrichten sind Ende-zu-Ende verschlüsselt, ohne einen zentralen Server und alles funktioniert auch offline, was mir ein gutes Gefühl gibt. Zudem läuft die App stabil und schnell. Absolute Empfehlung für alle, die Wert auf Datenschutz und Datensicherheit legen! ## Frequently asked questions about IRONDOTS CHAT ### How does IRONDOTS CHAT send messages? IRONDOTS CHAT transmits encrypted text messages through sound waves or ultrasound. The app does not connect to the internet for communication, relying solely on audio transmission. ### Is IRONDOTS CHAT secure? Yes, IRONDOTS CHAT uses end-to-end encryption with 256-bit asymmetric keys generated via elliptic curve cryptography. It also employs physical separation and stores your certificate encrypted with a password on your device for maximum security. ### Can I use IRONDOTS CHAT anonymously? Absolutely. IRONDOTS CHAT can be used completely anonymously without registration, phone number, or email address. Your secret certificate is stored encrypted on your device. ### Does IRONDOTS CHAT have ads? No, IRONDOTS CHAT is ad-free. The app is not financed by advertising and does not collect user data, ensuring an uninterrupted and private experience. ### What is the maximum message length in IRONDOTS CHAT? Messages sent through IRONDOTS CHAT have a maximum length of 40 characters. This is due to the encryption and transmission method utilizing sound waves. ### What devices does IRONDOTS CHAT support? IRONDOTS CHAT is available for iPhone, iPad, and iPod devices. It is designed for mobile use across these Apple platforms. ### How often is IRONDOTS CHAT updated? The latest version of IRONDOTS CHAT is 1.0.5, last updated on October 11, 2025. Updates are released periodically to maintain functionality and security. ### Is IRONDOTS CHAT compliant with data protection laws? Yes, IRONDOTS CHAT is fully compliant with the European Data Protection Act (DPA). The app is designed to prevent the collection and misuse of personal information. ## Version history (last 3 releases) ### 1.0.5 — 2025-10-11 This update includes bug fixes and performance improvements to make your experience smoother. Thank you for using IRONDOTS CHAT! ### 1.0.4 — 2025-10-05 V 1.0.4. Small changes ### 1.0.3 — 2024-11-09 No release notes. ## Apps similar to IRONDOTS CHAT | App | Rating | Price | Category | | --- | --- | --- | --- | | [ScaleRemote](https://appshunter.io/ios/app/scaleremote/id1628976668) | — | Free | Utilities | | [ThermoFlux - Serviseri](https://appshunter.io/ios/app/thermoflux-serviseri/id6449216856) | — | Free | Utilities | | [WuTool](https://appshunter.io/ios/app/wutool/id6744746697) | — | Free | Utilities | | [Pro-Leaf](https://appshunter.io/ios/app/pro-leaf/id1560281155) | — | Free | Utilities | | [ScanLink](https://appshunter.io/ios/app/scanlink/id6476870957) | — | Free | Utilities | | [Survival Storehouse](https://appshunter.io/ios/app/survival-storehouse/id6744917490) | — | $1.99 | Utilities | ## More apps by MICHAL NAPIORKOWSKI IT - [IRONDOTS](https://appshunter.io/ios/app/irondots/id1622191836) All apps by MICHAL NAPIORKOWSKI IT: https://appshunter.io/developer/1622191838 --- *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 2026-06-04.*