The tweak Support WhatsApp (official version) 2.12 and above (it should work with most recent Beta version also )

Supports iPhone/iPad iOS8 Only

Use InTweakPurchase and it will be for 1.99$ for 24H after the release date than will incress it's price to 2.99$

Features:
• Quick Reply for WhatsApp Messages
Finally the feature which all of us wanted for WhatsApp on iOS
This tweak let you use the native iOS8 feature to answer messages directly from anywhere in your device

1- Supports Answer even if WhatsApp in Background

2- Supports Reply from LockScreen ( even if you have a passcode thanks @NoelielDev for this feature)

3- it won't mark that you read the message ( means no blue mark if u reply through WAQuickReply )

4- it has a built-in retry messages feature to retry the message didn't send (and this is the magic within this tweak)

5- i worked hard on this tweak to make it works and stop the most known issue with all WhatsApp QuickReply since iOS7 which don't send message ( this even works after reboot the device ) and sends all the messages 100%