Best and fast antivirus scanner, App locker 2017

Hi Security is a world-class FREE Antivirus protection, protecting your Android phone from all virus attacks, privacy snoopers and WiFi spies. 

Hi Security Lite (Antivirus, App Lock, Privacy Clean, WiFi Security) is absolutely free with No Ads.

Award-Winning Antivirus Engine 

Hi Security also provides a continuously growing, cloud-based anti virus database which provides you with secure Android experience without any threats (malware, Trojans or any extortion viruses).

The antivirus engine effectively scans and kills all Android viruses on your internal device storage and SD cards, no more worries about Android threats.

Automatically scans your devices on scheduled time. A 24/7 real time protection.

App Lock - Privacy Protection with stylish themes 

You can secure sensitive apps. This password is different from your phone unlock password, which gives your an extra level of security. Lock your private apps by using fingerprint, pattern or PIN. Fingerprint lock password is supported on specific devices. Protect your privacy with the smart App Lock NOW! A range of brand new App Lock themes added! Fingerprint unlocking works on specific devices and Android 6.0+.

WiFi Security and WiFi Speed Test 

Hi Security protects your online security from insecure public WiFi & phishing hotspot by detecting DNS/SSL hijacking and ARP spoofing. Test WiFi speed, detect WiFi intruders and protect your network safety. 

User Friendly, Super-Fast, Energy-Efficient and Tiny 

Hi Security Lite only takes a few seconds to examine your entire phone. High performance but require less memory consumption. The best mobile security mobile application is tiny but with decent safety features ( Virus cleaner, Cleaning your browser and clipboard history, Privacy App Lock, WiFi Security and more).

Multi-Languages Support 

English, Português(Brasil), Português(Portugal), Español(España), Español(Latinoamérica), Pусский, Français, Italiano, हिन्दी, Dansk, Ελληνικά, فارسی, عربى, ไทย, Bahasa Indonesia, Türkçe, Tiếng Việt, Deutsch, Malay, 한국의, 日本語, 中文简体 and 中文繁體.

LG and Sony Phone User Note Due to the smartphone manufacturers' technical problems, App Lock might be not working on certain devices, such as LG and Sony's phones. 

Android 7.1.1+ User Note Android 7.1.1+ phones doesn't support App Lock currently. The issue will be fixed as soon as possible. 

Hi Security Lite's Key Features 

A world-class Antivirus - Virus detector and mobile threats remover 

Deep Scan - Scanning both internal and external storage (SD card) 

Privacy Clean & Protection - Clean up browsing and clipboard history with one tap 

Safe Browsing - 24/7 online security protection 

Phone Memory Cleaner - Memory clean 

Android vulnerability detection - Stagefright Detector

App Lock - Sensitive application locker 

WiFi Security - WiFi test speed and detect WiFi Spy 

Professional, Fast, Easy, Space-Saving and Efficient 

Find the award-winning Antivirus, Privacy and WiFi Safeguard - Hi Security Lite on