PilferShush Jammer vs Port Authority
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
Port Authority
A handy systems and security-focused tool, Port Authority is a very fast port scanner. Port Authority also allows you to quickly discover hosts on your network and will display useful network information about your device and other hosts.One of the fastest port scanners with host discovery on the market! Host discovery is typically performed in 3 seconds. If the device you’re scanning drops packets, it takes less than 10 seconds to scan 1000 ports. If the device you’re scanning rejects packets, it takes about ~30 seconds seconds to scan all 65,535 ports!Port Authority has no ads and will never have ads. It requires extremely limited permissions since it only needs to interact with your network. The internals are designed to take advantage of today’s modern phones with multiple cores to ensure you can scan your network as fast as possible.
| Feature | PilferShush Jammer | Port Authority |
|---|---|---|
| License | Apache-2.0 | GPL-3.0-only |
| Install sources | F-Droid | F-DroidGitHubIzzyOnDroid |
| Categories | Password ManagerProductivity | Password ManagerProductivity |
| Features | Ad-FreeOpen SourceNo Tracking | Ad-FreeOpen SourceNo Tracking |
| Platforms | Android | Android |
| Website | ||
| Source code |