Field-grade end-to-end encrypted voice calls. Zero metadata. Zero trust required. Built with Rust cryptography for operators who demand absolute privacy.
Every architectural decision puts your privacy first. No compromises.
XChaCha20-Poly1305 AEAD encryption with X25519 key exchange. Every call gets a unique session key. We can never listen in.
No call logs, no contact uploads, no tracking. Your IP is masked through relay routing. We store nothing about your communication.
The complete source code is on GitHub under GPL-3.0. Don't trust us — verify our security claims yourself. Full transparency.
The cryptography core is written in Rust for memory safety. No buffer overflows, no use-after-free. Independently auditable.
Opus codec at 48kHz delivers natural voice quality even on poor connections. Adaptive bitrate for WiFi and cellular.
Double Ratchet protocol ensures that compromising one key doesn't expose past or future calls. Every session is independent.
5-tap instant wipe destroys all contacts, keys, and call history. The app resets to factory state in under a second.
Share your SecureCall ID via QR code or deep link. One tap to add a contact — no manual ID entry required.
Enable SecLog to capture connection, call, and network events. Export as CSV for troubleshooting. Your data stays on your device.
Built-in WireGuard tunnel routes all SecureCall traffic through your VPN. Kill switch included. Real GoBackend — not a wrapper.
FLAG_SECURE blocks screenshots. Exclusive microphone prevents spy apps. Screen recording detection alerts you in real time.
Route encrypted calls through a dedicated eSIM for maximum network separation. Requires VpnService-based traffic steering (in development).
Seamless reconnection on WiFi/Mobile/eSIM network switches. ConnectivityManager detects changes instantly — no manual restart needed.
Receive calls even when the app is closed. Firebase Cloud Messaging wakes your device for incoming encrypted calls.
Lock IFR tokens on-chain for lifetime Premium access. WalletConnect v2 lets you verify directly from MetaMask or any Web3 wallet.
v1.7 — Matrix Contact Exchange
Share SecureCall ID via Element, FluffyChat, or any Matrix client
v2.0 — Matrix Federation
Reachable from 28M+ Matrix users at @sc_xxx:stealthx.tech
v2.2 — Group Calls (MSC3401)
Encrypted multi-party calls via Matrix rooms
v2.3 — iOS Client + Biometric Lock
Native Swift app with shared Rust crypto engine
No accounts, no phone numbers, no personal data required.
Download from Google Play or sideload the APK. No registration required.
Your device creates a unique X25519 key pair locally. Keys never leave your phone.
Exchange your anonymous SecureCall ID with your contact via any channel.
End-to-end encrypted channel established. No one intercepts — not even us.
We don't ask for trust. We provide proof. Every claim is auditable.
Every claim is backed by real tests on real devices. No marketing fluff.
Last tested: April 2, 2026 — 38 devices including Samsung S10, S7, Tab S4, S21+, X Cover 7, A16, A17, Xiaomi Redmi 15C, Huawei P30, Motorola Edge 60 Fusion and 28 additional tester devices
| 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 |
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 GitHubThe 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 | ✓ | ✗ | ✗ | ✗ |
| Open source (GPL-3.0) | ✓ | ✓ | ✓ | ✗ |
| Free tier available | ✓ | ✓ | ✓ | ✗ |
| F-Droid planned | ✓ | ✗ | ✗ | ✗ |
| EU/GDPR compliant | ✓ | ⚠️ | ✗ | ✗ |
| Gift activation codes | ✓ | ✗ | ✗ | ✗ |
Comparison based on publicly documented features as of April 2026. SecureCall is GPL-3.0 open source — code is auditable and freely redistributable.
Every tier includes end-to-end encryption. Upgrade for advanced protection.
IFR Bootstrap ends June 5, 2026 — trading expected August 2026 | ifrunit.tech
Lock $IFR tokens. Unlock forever. Your tokens stay yours.
⏳ 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
One-time purchase. Lifetime access. Only 100 licenses per tier. Price increases with every sale.
Secure payment via Google Play. Code delivered instantly in-app.
Everything you need to know about SecureCall.
Deploy SecureCall and establish your first encrypted channel in under 60 seconds.
Requires Android 7.0+ · ~80 MB · No account required
Download FREE — upgrade anytime with an activation code or in-app purchase
Reach every user instantly — without knowing who they are.
Your privacy is preserved at every step.
We don’t know who you are or where you are — and we never will.
We send a ping. Your phone does the rest.