PilferShush Jammer vs SecureOTP - Universal OTP Extractor
Side-by-side comparison of two open source alternatives
PilferShush Jammer
Features a passive jammer technique that engages the microphone thereby blocking other apps from using it. But does NOT listen to or record any of the audio from the microphone. It uses 0% CPU and no noticeable battery use. However is not intended to be left on permanently due to the variety of triggers that can cause audio_focus_state changes (VOIP etc). Also features an active jammer that emits tones constrained to the NUHF range of 18 kHz to 24 kHz range. User determined carrier frequency and drift limits with rate for random tone emissions depending on the device capabilities. For instance 20000 Hz carrier, drift limit 1000 Hz and rate slow - will output random frequency between 19 kHz and 21 kHz approximately every second. Audible artifacts are present during the NUHF tones but this may be changed in a future release. Experimental white noise output may not be very effective at blocking and is a somewhat annoying sound. The device speaker output may not have enough amplitude to block unwanted NUHF signals - testing will determine. * Manual start * Notification post when running * Auto stop and restart when telephony interrupts * Currently relies on audio_focus_state changes for auto-switching * Active jammer
SecureOTP - Universal OTP Extractor
SecureOTP is a smart, privacy-focused Android utility that automatically detects, extracts, and copies OTP (One-Time Password) codes from ANY app notifications to your clipboard instantly. Universal App Support • SMS Messages - All messaging apps • Email - Gmail, Outlook, Yahoo, ProtonMail, etc. • Banking Apps - All major banks and fintech apps • Social Media - WhatsApp, Instagram, Facebook, Twitter, Telegram • Payment Apps - PayPal, Paytm, PhonePe, Google Pay • ANY app that sends OTP notifications! Smart Detection • Intelligently identifies OTP codes even when notifications contain multiple numbers • Filters out phone numbers, dates, and tracking numbers • Context-aware pattern matching for maximum accuracy • Supports various OTP formats (4-8 digit codes) Privacy & Security • 100% Local Processing - All OTP extraction happens on your device • No Internet Required - Works completely offline • No Data Collection - Zero data sent to servers • Open Source - Fully transparent code you can audit • No Permissions Abuse - Only uses NotificationListenerService Battery Optimized • Efficient background processing with minimal battery impact • Smart wake lock usage (max 3 seconds per notification) • Uses coroutines for non-blocking operations • No polling, no API calls, no 24/7 background services Performance • Instant OTP detection as notifications arrive • Auto-copy to clipboard - ready to paste immediately • Minimal memory footprint • Optimized for low-end devices Requirements • Android 8.0 (API 26) or higher • No internet connection needed • No account setup required Open Source SecureOTP is fully open source. View the code, contribute, or report issues on GitHub: https://github.com/26JATIN/SecureOTP
| Feature | PilferShush Jammer | SecureOTP - Universal OTP Extractor |
|---|---|---|
| License | Apache-2.0 | Apache-2.0 |
| Install sources | F-Droid | F-DroidGitHub |
| Categories | Password ManagerProductivity | Password ManagerProductivity |
| Features | Ad-FreeOpen SourceNo Tracking | Ad-FreeOpen SourceNo Tracking |
| Platforms | Android | Android |
| Website | ||
| Source code |