★ Root NOT needed ★
Proxy that can operate with proxy authentications.
Android OS has just proxy with no authentication.
So this app can help you with your corporate/university/school network environment.

Supports digest, windows (ntlm), basic authentication. HTTP,HTTPS,SOCKS4a,SOCKS5 type of proxies.
Drony will start if wifi appears that has proxy set on same port that is used in Drony to listen.
Drony will stop when that wifi is no longer active.
-can be used with adblockplus
-can be used with local SOCKS proxies, builtin shadowsocks tunnel
github.com/SuppSandroB/sandrop/wiki/DronyWithOrbot
-support for multiple network configurations
-pac/wpad proxy script support code.google.com/p/sandrop/wiki/HowToUseDronyWithScriptProxy
-local networks name resolver code.google.com/p/android/issues/detail?id=8030
- tab FILTER where you can see apps that are making requests and perform filter actions
- actions deny, allow, direct (no proxy), local proxy chain
- default filter behaviour : deny all, allow all, direct all, local proxy chain all
- filter by network or for all networks
- filter can be on client ip, application, hostname part, port, method
- tab CONNECTIONS where you can see which apps makes traffic, details about all connections

FAQ:

github.com/SuppSandroB/sandrop/wiki/Drony-FAQ

If you need more options, features check SandroProxy. It's more a developer tool for intercepting traffic.
market.android.com/details?id=org.sandroproxy

How to connect to another proxy example:
code.google.com/p/sandrop/wiki/HowToUseDronyWithOtherProxy

Beta testing group:
groups.google.com/d/forum/drony-beta-test

XDA thread:
forum.xda-developers.com/showthread.php?t=2320008

Admin settings wizard:
code.google.com/p/sandrop/wiki/DronySettingsWizard

For dns Drony is using two open source programs:
dnscrypt-proxy: github.com/SuppSandroB/dnscrypt-proxy/tree/android_jni
pdnsd : github.com/SuppSandroB/shadowsocks-android
shadowsocks : github.com/SuppSandroB/shadowsocks-android

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

From version Drony 1.3.154:

1.3.154 - hotfix crash on sorting wifi list
1.3.152 - support for android 10. New permissions needed. Location and write storage.
1.3.151 - hotfix refund after 3 days
1.3.150 - hotfix crash on first install
1.3.146 - payments for ads free app; subscription per month and one time payment
1.3.129 - rewarded ads; you get 7 starts without full screen ad; Settings->Ad Rewards
1.3.108 shadowsocks feature; drony can make shadowsocks tunnels
1.3.103 dns www.youtube.com/watch?v=kyc0Nw58rkE

Variant
Arch
Version
DPI
(Android 4.0+)
Latest: 1.3.135 on November 5, 2018
All versions
Drony 1.3.154
November 3, 2019

Version:1.3.154

Uploaded:November 3, 2019 at 12:58PM UTC

File size:8.97 MB

Downloads:3,894

Drony 1.3.152
November 2, 2019

Version:1.3.152

Uploaded:November 2, 2019 at 4:15PM UTC

File size:9.01 MB

Downloads:86

Drony 1.3.151
July 15, 2019

Version:1.3.151

Uploaded:July 15, 2019 at 6:12AM UTC

File size:8.88 MB

Downloads:383

Drony 1.3.150
June 28, 2019

Version:1.3.150

Uploaded:June 28, 2019 at 6:21AM UTC

File size:8.88 MB

Downloads:90

Drony 1.3.146
June 26, 2019

Version:1.3.146

Uploaded:June 26, 2019 at 7:22AM UTC

File size:7.83 MB

Downloads:54

Drony 1.3.140
March 14, 2019

Version:1.3.140

Uploaded:March 14, 2019 at 5:24PM UTC

File size:8.4 MB

Downloads:459

Drony 1.3.138
February 4, 2019

Version:1.3.138

Uploaded:February 4, 2019 at 10:52AM UTC

File size:8.24 MB

Downloads:183

Drony 1.3.137
January 12, 2019

Version:1.3.137

Uploaded:January 12, 2019 at 7:11PM UTC

File size:8.26 MB

Downloads:218

Drony 1.3.136
November 8, 2018

Version:1.3.136

Uploaded:November 8, 2018 at 5:36PM UTC

File size:8.06 MB

Downloads:678

Drony 1.3.135
November 5, 2018

Version:1.3.135

Uploaded:November 5, 2018 at 6:46PM UTC

File size:8.06 MB

Downloads:160