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2. Citizen (app) - Wikipedia

   en.wikipedia.org/wiki/Citizen_(app)

   He thought about the modern, invisible signals of wireless calls, Wi-Fi and police radio darting through the 19th-century buildings." Vigilante was backed by a seed round of $1 million, led by Founders Fund. The Vigilante app was released to New York City, in the App Store on October 26, 2016.

3. Fingerprint scanner - Wikipedia

   en.wikipedia.org/wiki/Fingerprint_scanner

   The basic function of every type of scanner is to obtain an image of a person's fingerprint and find a match for it in its database. The measure of the fingerprint image quality is in dots per inch (DPI). [8] Optical scanners take a visual image of the fingerprint using a digital camera. Capacitive or CMOS scanners use capacitors and thus ...

4. Radio scanner - Wikipedia

   en.wikipedia.org/wiki/Radio_scanner

   A scanner (also referred to as a radio scanner) is a radio receiver that can automatically tune, or scan, two or more discrete frequencies, stopping when it finds a signal on one of them and then continuing to scan other frequencies when the initial transmission ceases. The term scanner generally refers to a communications receiver that is ...

5. 10 Receipt Scanner Apps That Reward You for Everyday Shopping

   www.aol.com/best-receipt-scanner-apps-2022...

   10 Best Receipt Scanner Apps for Rewards. Many receipt scanner apps offer reward points and cash-back opportunities. Here are 10 options and what they’re best for. 1. Fetch Rewards: Best for ...

6. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

7. Stingray phone tracker - Wikipedia

   en.wikipedia.org/wiki/Stingray_phone_tracker

   Stingray phone tracker. The StingRay is an IMSI-catcher, a cellular phone surveillance device, manufactured by Harris Corporation. [2] Initially developed for the military and intelligence community, the StingRay and similar Harris devices are in widespread use by local and state law enforcement agencies across Canada, [3] the United States, [4 ...