Redsn0w jailbreak

Redsnow is a untethered and tethered Jailbreak tool developed by iPhone Dev-Team. QuickPwn was the first name of this. Redsn0w is not only jailbreak tool. It worked as unlocker, Rebooter, IPSW detector & recovery mode fixer too.
However,  this tool is not alive now. Developer iPhone Dev-Team has stopped releasing update after following versions. On the other hand, they give up this tool once Apple introduced the 64-bit devices.

Redsn0w tool Support Versions

Redsn0w higher version - 0.9.15 beta 3 for Windows & Mac
Untethered support - iOS 5.1.1
Tethered support - iOS 6.0.1
Beta support - iOS 6.1 beta 4
Redsn0w Compatibility
Redsn0w compatible devices according to iOS versions  as follows.
iPhone 4S - iOS 5.0/iOS 5.1.1
iPhone 4 - iOS 3.1.3 to  iOS 6.0.1
iPhone 3GS - iOS 3.1.3 to iOS 6.0.1
iPhone 3G - iOS 3.1.3 to  iOS 4.2.1
iPad 3 -  iOS 5.1.1
iPad 2 - iOS 5.0.1/ iOS 5.1.1
iPad 1 - iOS 3.2.2 to iOS 6
iPod Touch 3G - iOS 3.1.3 to iOS 5.1.1
iPod Touch 2G - iOS 3.1.3 to iOS 4.3.4
iPod Touch 4G- iOS 3.1.3 to  iOS 6.0.1

Redsn0w Tethered jailbreak using version 0.9.15b3

Step 01 - Make sure your iOS version is running iOS 6.1.3. If it is, you can start the tethered jailbreak.
Step 02 - download the Redsn0w latest version according to the iOS from following links.
Step 03 - Download the iOS 6.0 IPSW file according to your device.
Step 04 - Connect your device with the PC or Mac. then run the downloaded Redsn0w file after extract it.
Step 05 - Put your device into DFU mode. Hold the Power buttons for 3 seconds. While holding Power button, press Home button for another 10 seconds. Release the Power button only, but hold the Home button for another few seconds until Redsn0w detects the device. Then release Home button. Now your device screen will turn into black. It means device went to DFU mode successfully.
Step 06 - Click Extras --- > Select IPSW --- > Select iOS 6.0 IPSW and it will identify the firmware by the Redsn0w.
Step 07 - Click the Jailbreak button on the Redsn0w home screen. Make sure to check the Cydia button. Click Next button.
Step 08 - Click on the Just Boot button and click Next button.
Step 09 - Follow the Step 04 again to put your device DFU mode once a time.
Step 10 - Wait until complete the jailbreak process. Finally it will have Cydia on your device.
Step Guide for Redsn0w Untethered jailbreak using version 0.9.15b3
Step 01 - Download Redsn0w 0.9.12 from following install button.
{Redsn0w for Windows}
{Redsn0w for Mac}
Step 02 - Connect your device to the PC and click “Jailbreak”
Step 03 - According to your device this step may vary. Please follow the instructions according to your device.
Click on “Next” to run the jailbreak for iPhone 4S, iPad 2, and iPad 3
You will need to put the device into DFU mode for iPhone 4 & 3GS, iPod touch 3rd and 4th gen, and iPad 1.
For DFU mode:
Hold Power button for 3 sec.
Continue holding Power button+Home button for 10 sec.
Release Power button but hold home button for another few sec.
Step 04 – Then Redsn0w will run the app and install the jailbreak. Now the device will restart. Finally Cydia will be on the home screen.
Note - You can reboot the device without having any issue because this method is fully untethered jailbreak.

Specialty of Redsn0w

It worked for both Windows and Mac surfaces, when compared with same era releases just like Sn0wbreeze & other tools.
Before start the jailbreak process, it never asks getting back up of your device. Cause, it did not erase current data on your device while running the jb process.
Except the Jailbreak process, it has many options under the Extras tab, which users need to maintain the device. Here are some of them.
Just Boot - Help to reboot the device.
Pwned DFU - To put the device into DFU mode.
Recovery Fix - To fix recovery mode loop error.
SHSH blobs - To downgrade iOS version, when Apple disable doing it.
Select IPSW - While processing jailbreak, it will detect the IPSW automatically. No need to do it manually.
Custom IPSW - When it needs to unlock iDevices, this will really help to create custom firmware upgrade.
Even More - It has Restore, Identify, Backup, Tickets, DFU IPSW and Preferences options under the Even More.
Under the Preferences option it has ECIDs, Boot Args, Boot logos.

Special events of Redsn0w

Official Twitter Account
Official Website
Redsn0w Options
Redsn0w is little bit different jailbreak tool than other tools. Other than the installing Cydia, Redsn0w offers many extra features as enable multitasking, enable wallpapers, enable battery percentage and more. Use following screenshot to get more redsn0w options.

Ultrasn0w

Ultrasn0w was an iPhone unlock app, which was made by iPhone Dev team. It needs jailbroken iDevice to use this unlocker. It was possible to unlock your iPhone 4 or iPhone 3GS running the iOS 5.1.1 firmware using UltraSn0w 1.2.7.

Pwnage Tool

Pwnage tool is another jailbreak method developed by the iPhone Dev Team just like Redsn0w.
Pangu Anzhuang
Pangu Anzhuang  is Online jailbreak app installer for all 64-bit & 32-bit devices. As well Anzhuang compatible with all latest iOS versions including latest iOS 11.3 Jailbreak as well as iOS 11.4 jailbreak (beta).This is available under zJailbreak and Xabsi app stores.


Yalu Jailbreak
Yalu jailbreak  is jailbreak tool for all 64-bit devices running iOS 10-iOS 10.2. It was released by Luca Todesco. Both online jailbreak and PC required method available with yalu tool.
Redsn0w 0.9.15 beta 3 for Windows
RedSn0w 0.9.15 beta 3 for Mac
Velonzy
Velonzy is a third-party app installer for latest iOS versions, and it initially released to iOS 10.3.3 versions and Velonzy team continuously updating the tool compatibility up to latest version. Velonzy installs jailbreak apps to iOS versions through UDID Registration method.
iOS 11.2.5 /iOS 11.2.6 Jailbreak
Users can install Jailbreak apps to iOS 11.2.5 & iOS 11.2.6. UDID Registration method and Dev Code extraction method are the best solutions to install jailbreak apps for this version. As well it has a lot of jailbreak scams for iOS 11.2.5 versions. Go to iOS 11.2.5/iOS 11.2.6 Jailbreak page for more details.

UltraSn0w Supported Baseband Versions:

iPhone 4: 1.59.00 (GSM only)

iPhone 3GS: 4.26.08, 5.11.07, 5.12.01, 5.13.04, and 6.15.00 (special iPad baseband)

iPhone 3G: 4.26.08, 5.11.07, 5.12.01, 5.13.04, and 6.15.00 (special iPad baseband)
However Ultrasn0w  support stopped after iOS 5.1.1. Therefore it has no Ultrasn0w version for latest Apple iOS version jailbreaks. Repo666.ultrasn0w.com repo is also not working now.
Pwnage jailbreak releases for iOS 5.1.1 running iPhone, iPad and iPod Touch. PwnageTool 5.1.1 is available for Mac OS X users only. PwnageTool creates custom iOS firmware(IPSW) to user-defined specifications just like snowbreeze.
PwnageTool also avoids sync issues, but again it applies only to A4+earlier devices. If you unlock your iPhone with ultrasn0w or a commercial method, you must use PwnageTool to avoid updating your baseband otherwise you’ll lose the unlock.
Device Compatibility:

iPhone 3G
iPod touch (2nd generation)
iPhone 4 (iPhone3,1)
iPod touch (3rd generation)
iPod touch (4th generation)
iPad
Apple TV (2nd generation)
Now it has completely stopped releasing Pwnage Tool versions.