COMMS SECURE · FIELD READY

Classified
Voice Communications.

Field-grade end-to-end encrypted voice calls. Zero metadata. Zero trust required. Built with Rust cryptography for operators who demand absolute privacy.

XChaCha20 Encryption
0 Metadata Stored
Rust Crypto Engine
CHANNEL SECURE
XChaCha20-Poly1305
ACTIVE
🔐 No phone number required
💥 STEALTH-DELETE
🛡️ Built-in WireGuard VPN
🚨 Emergency Broadcast
🔑 Lifetime via IFR Token
📦 Source Available — auditable

Tactical security,
not empty promises.

Every architectural decision puts your privacy first. No compromises.

End-to-End Encryption

XChaCha20-Poly1305 AEAD encryption with X25519 key exchange. Every call gets a unique session key. We can never listen in.

Zero Metadata

No call logs, no contact uploads, no tracking. Your IP is masked through relay routing. We store nothing about your communication.

Source Available

The complete source code is on GitHub. Don't trust us — verify our security claims yourself. Full transparency.

Rust Crypto Engine

The cryptography core is written in Rust for memory safety. No buffer overflows, no use-after-free. Independently auditable.

Crystal-Clear Audio

Opus codec at 48kHz delivers natural voice quality even on poor connections. Adaptive bitrate for WiFi and cellular.

Perfect Forward Secrecy

Double Ratchet protocol ensures that compromising one key doesn't expose past or future calls. Every session is independent.

Secure in seconds.

No accounts, no phone numbers, no personal data required.

1

Deploy

Download from Google Play or sideload the APK. No registration required.

2

Generate Keys

Your device creates a unique X25519 key pair locally. Keys never leave your phone.

3

Share ID

Exchange your anonymous SecureCall ID with your contact via any channel.

4

Establish Channel

End-to-end encrypted channel established. No one intercepts — not even us.

Cryptographic specifications.

We don't ask for trust. We provide proof. Every claim is auditable.

Encryption
XChaCha20-Poly1305
256-bit AEAD cipher with 192-bit nonce
Key Exchange
X25519 ECDH
Elliptic Curve Diffie-Hellman on Curve25519
Forward Secrecy
Double Ratchet
Per-session key derivation, zero key reuse
Audio Codec
Opus @ 48kHz
Adaptive bitrate 6-510 kbps
Transport
WebRTC + DTLS-SRTP
Peer-to-peer with encrypted transport
Crypto Engine
Rust (memory-safe)
Zero buffer overflows, zero use-after-free
Read Full Security Architecture →

Tested. Audited. Proven.

Every claim is backed by real tests on real devices. No marketing fluff.

33/33
Settings Tests Passed
8/8
Bugs Found & Fixed
E2E
XChaCha20-Poly1305 Verified
P2P
WebRTC DataChannel Audio
FCM
Push Notifications Verified

Quality Audit — v1.6

Incoming Call (accept, hold, end)✓ PASS
Outgoing Call via Dialer✓ PASS
FCM Push (wakes killed app)✓ PASS
Online Status Dots (<15s refresh)✓ PASS
Dynamic TURN Credentials (no hardcoded secrets)✓ PASS
IFR Wallet Verification (on-chain)✓ PASS
Tier Gating (33 settings across 3 tiers)✓ PASS
Contact Deduplication✓ PASS
Screenshot Blocking (FLAG_SECURE)✓ PASS
Network Audit (TLS, VPN compat, no cleartext)✓ PASS

Security Architecture

  • Zero-Knowledge — Server cannot decrypt calls
  • E2E Encryption — XChaCha20-Poly1305 + X25519
  • STEALTH-DELETE — Emergency data wipe (5-tap)
  • Anti-Recording — Screen + mic hijack detection
  • Proximity Sensor — Wake lock during calls
  • Certificate Pinning — MITM protection (Premium)
Full Audit Report →

Don't trust.
Verify.

SecureCall's source code is publicly available on GitHub. Audit our cryptography implementation, verify our privacy claims, and inspect every line of code that handles your voice data.

We believe that true security requires transparency. If we can't show you how it works, you shouldn't trust it.

View on GitHub
// core_crypto/src/lib.rs
pub fn encrypt_voice_frame(
    frame: &[u8],
    key: &SessionKey,
    nonce: &XNonce,
) -> Result<Vec<u8>> {
    let cipher = XChaCha20Poly1305::new(key);
    cipher.encrypt(nonce, frame)
        .map_err(|_| CryptoError::EncryptionFailed)
}

Why SecureCall?

The only encrypted calling app that requires no phone number, no account — and destroys itself on command.

Feature SecureCall Signal Wire Wickr
No phone number required
No account registration
End-to-end encrypted calls
Built-in WireGuard VPN
STEALTH-DELETE (instant wipe)
Emergency Broadcast System
Zero metadata stored ⚠️ ⚠️ ⚠️
IFR Token lifetime access
WalletConnect v2
Source available (auditable)
Free tier available
F-Droid available
EU/GDPR compliant ⚠️
Gift activation codes

Comparison based on publicly documented features as of March 2026. SecureCall is Source Available (not open source) — code is auditable but not freely redistributable.

Choose your clearance level.

Every tier includes end-to-end encryption. Upgrade for advanced protection.

Free
$0 forever
  • E2E encrypted calls
  • Contact verification
  • Call history
  • Basic security warnings
  • Dark/Light mode
  • Online/offline status
  • Anti-recording protection
  • GhostNet IP masking
Get Started
Premium
€4.99 /month
  • Everything in Pro
  • Advanced threat detection
  • Exclusive audio focus protection
  • Threat auto-termination
  • GhostNet IP masking
  • Zero telemetry
  • WireGuard VPN integration
  • Future: eSIM support
  • OR: Verified IFR Lock ≥ 5,000 IFR — lifetime
Go Premium →

IFR Bootstrap ends June 5, 2026 — trading expected August 2026 | ifrunit.tech

IFR Lifetime Unlock

Lock $IFR tokens. Unlock forever. Your tokens stay yours.

PRO — Lock 1,000 IFR
  • + Online/offline status
  • + Anti-recording detection
  • + Enhanced security
  • + Unlimited calls & contacts
PREMIUM — Lock 5,000 IFR
  • + Everything in Pro
  • + Advanced threat detection
  • + GhostNet IP masking
  • + Zero telemetry
Learn More → Powered by Inferno ($IFR)

⏳ IFR Token — Bootstrap Phase Active

Bootstrap Event ends: June 5, 2026
Expected trading start: August 2026
Liquidity Reserve unlock: September 1, 2026

During Bootstrap: participate at ifrunit.tech · After LP launch: lock IFR directly in SecureCall Settings

Download StealthX FREE

Forever Licenses — No Subscription

One-time purchase. Lifetime access. Only 100 licenses per tier. Price increases with every sale.

Lifetime licenses are available exclusively in the app. Download SecureCall and tap "Upgrade" to purchase.

Tactical briefing.

Everything you need to know about SecureCall.

No. Calls are encrypted end-to-end using XChaCha20-Poly1305. Encryption keys are generated on your device and never sent to our servers. We have zero technical ability to decrypt your calls, even if compelled by a court order.
Transparency builds trust. By publishing our source code, we allow anyone — security researchers, journalists, privacy advocates — to verify that our encryption works as claimed. Security through obscurity is no security at all.
The Free tier collects anonymous crash reports (opt-out available). Pro collects nothing. Premium collects absolutely nothing — not even your IP address (masked via GhostNet). See our Privacy Policy for full details by tier.
Pro and Premium tiers include active protection against screen recording, microphone hijacking, and spy apps. The system detects recording attempts and responds based on your tier: Pro blocks the threat, Premium automatically terminates the call to protect you.
View All FAQ →

Ready to secure
your comms?

Deploy SecureCall and establish your first encrypted channel in under 60 seconds.

Requires Android 10+ · ~15 MB · No account required

Download FREE — upgrade anytime with an activation code or in-app purchase

Emergency Broadcast System

Reach every user instantly — without knowing who they are.

How it works

  • 📡 Only a single numeric ID is sent — nothing else
  • 🔒 No message text, no user data, no location transmitted
  • 📱 Alert templates are pre-installed on your device
  • ⚡ A 1-byte ping reaches all users simultaneously
  • 🔔 Works even when the app is closed

Alert Templates

🔴 CRITICAL — Stop using SecureCall
🟠 Security Alert — Switch to backup comms
🟡 Update Required — Critical update available
📻 Emergency — Turn on radio/TV
⚫ Stealth Protocol — Activate stealth mode
⚠️ Network Warning — Network may be monitored
🔵 Maintenance — Temporary interruption
🟢 All Clear — Previous alert resolved

Your privacy is preserved at every step.
We send a number. Your phone does the rest.