Secure SMS OTP relay
RelayOTP securely bridges OTP codes between your own phones.
A two-device Android workflow for users who keep a SIM in one phone and banking apps on another — pairing devices with QR and relaying OTPs with encryption.
AES-256Payload encryption
RSA-2048Key exchange
30 secServer cleanup
Stable v1.0.0Android 8.0+Official APK
Interface Preview
Real RelayOTP screens for secure two-phone OTP flow.
Explore the actual RelayOTP interface: device mode selection, pairing flow, sender dashboard, and receiver workflow. The preview automatically matches dark or light mode.
Official APK
RelayOTP download information.
Secure OTP relay for your own paired phones distributed through the official ProjectW website.
Official ProjectW sourceVerify filename before installing
Feature architecture
Built like a product, presented like a premium launch.
RelayOTP is built with its own feature set, technical workflow, and product story while staying connected to ProjectW.
Instant OTP Relay
Capture SMS OTP codes on the SIM phone and relay them to the paired receiver phone in real time.
End-to-End Encryption
Encrypt OTP payloads with AES-256-GCM and exchange keys through RSA-2048 pairing.
QR Pairing
Pair two phones securely by scanning a QR code with no typing or manual key sharing.
Auto-Fill Mode
Assist supported banking apps by filling OTP fields using Android Accessibility workflows.
Inbox Detection Mode
For apps that read SMS inboxes, RelayOTP can place the OTP where the banking app can detect it.
Foreground Reliability
Battery optimization guidance and foreground service patterns keep the listener reliable in the background.
How it works
A clear technical flow users can trust.
01
Sender phone
The phone with the SIM listens for incoming OTP messages.
02
Pair devices
The receiver phone scans a QR code and exchanges public keys.
03
Encrypt relay
The sender encrypts OTP data before transport through Firebase over TLS.
04
Receive OTP
The receiver decrypts and presents the OTP through overlay, inbox, or assisted entry.
SenderOTP
Receiver482 913
Stack & capabilities
Keywords, architecture, and product signals.
AES-256-GCMRSA-2048FirebaseQR pairingAccessibilityForeground serviceSMS workflowPakistan banking
FAQ
Important answers without killing the premium feel.
Is my OTP readable by servers?
The product is designed so OTPs are encrypted before leaving the sender phone and only the paired receiver can decrypt them.
Who is this for?
Users managing their own two-phone workflow where the SIM and banking apps are on separate devices.
Does it need internet?
Yes, both paired phones need internet for real-time relay transport.
Privacy & Responsible Use
RelayOTP Privacy & Responsible Use
RelayOTP is designed only for your own paired devices, your own SIM, and your own accounts. The app must not be used to access, forward, intercept, or control OTPs that do not belong to you.
Your own devices only
Use RelayOTP only between phones you own or are fully authorized to manage. Do not pair unknown, shared, stolen, or unauthorized devices.
Encrypted relay design
RelayOTP is designed around QR pairing, AES-256-GCM payload encryption, RSA-2048 key exchange, and short OTP retention for sensitive workflows.
No misuse responsibility
ProjectW will not be responsible for misuse, unauthorized OTP forwarding, account loss, banking issues, fraud, policy violations, or illegal activity caused by user behavior.
ProjectW ecosystem
