Use APKPure App
Get XDA for Android 2.3 old version APK for Android
XDA Mobile Application! Frei! OMG! Nur für Handys mit Android 2.3
The world famous XDA forums formatted for your Android phone! With this app you can browse the forums, read, post, send private messages, and more. Note that this app will not work if you have Android 4.0 or higher. For you, we have XDA Premium. Get it here: http://bit.ly/1jcWNaw
Note that the first forum load will take the longest, even if you're over WiFi.