KLine Plus vs IRONDOTS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KLine Plus
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KLine Plus is an app offering encrypted SIP calls and text messaging. With Kline Plus, you can be reachable with a Wi-Fi or 3G/4G connection. Features: - Unlock screen - Optional unlock screen - Saved messages are encrypted with AES - Private and encrypted contacts list: numbers not saved in phone contacts list - Autodelete messages with timer - ZRTP encryption for calls and optional ZRTP encryption for chat - ZRTP encryption for video calls - ZRTP encryption for conference calls - TLS for registration
IRONDOTS
Securely encrypt and decrypt messages into QR codes for private communication. This app offers end-to-end encryption and offline operation, ensuring your messages are protected from unauthorized access. Communicate anonymously without registration or internet connection.
- Encrypt/decrypt messages to QR codes
- End-to-end encryption
- Offline operation
- Anonymous usage
- 256-bit asymmetric keys
- Compliant with European Data Protection Act
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IRONDOTS allows you to encrypt & decrypt messages into / from a QR code. THE IRONDOTS PRINCIPLE IRONDOTS 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 160 characters encrypted into a QR code. COMMUNICATE WITHOUT TRACES IRONDOTS 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 IRONDOTS is not financed by advertising and does not collect user data. SUPPORT / CONTACT Support for security researchers, whistleblowers, freedom fighters & free press: security@irondots.com
Screenshots
Verdict
The clearest difference is price: KLine Plus at Free against IRONDOTS's $99.99. KLine Plus also leads on update cadence (every 5 days vs every 4 months) and iOS requirement (10.3 vs 14.0). On ads, in-app purchases and device support 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
KLine Plus is free to download; IRONDOTS costs $99.99 up front. Neither carries in-app purchases, so what you see is what you pay.
KLine Plus ships an update every 5 days, IRONDOTS every 4 months. The most recent releases landed on October 4, 2026 and October 10, 2026 respectively.
| Parameter | KLine Plus | IRONDOTS |
|---|---|---|
| Price | Free — better | $99.99 |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 5 days — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.3 — better | 14.0 |
| Further details — not scored | ||
| Size | 121 MB | 37 MB |
| Age rating | 17+ | 4+ |
| Developer | Imperial Eagle DWC-LLC | MICHAL NAPIORKOWSKI IT |
In-app purchases
KLine Plus
No in-app purchases
IRONDOTS
No in-app purchases









