Use Wiki² - Wikipedia Reader for iPad to find and display wikipedia articles. Every article you are viewing in Wiki² is saved for offline reading (no internet connection needed).
Add as many keywords as you want to every article, e. g. to subsume articles under a theme for later studying.
Open every article via the integrated bowser. From here you have direct access to Google search, in case you do not find what you are looking for in Wikipedia.
All major languages of the worldwide Wikipedia are supported. Change language on the fly to display a found article in another language (if available in the chosen language)
Tap in the search field and type your search phrase. Suggestions will show up in the list. Select an item from the list or just tap on enter on the keyboard.
If you did already download this article before the saved article will be shown. To update to the current release of this article tap on the reload button. This sometimes helps too if some images could not be loaded properly.
Tap on the search field and then on the random article button .
To view the startpage of Wikipedia tap on Wiki². This will load the most recent version of the startpage from your saved articles. To update this page to todays content please use the reload from Wikipedia button
If you read an already saved article from the history it may be out of date. To update this page to the most recent content please use the reload from Wikipedia button
If you change the language of Wikipedia Wiki² tries to reload the recently viewed article in the new language. This works only if the title of the article in the new language is the same as in the former language.
If Wikipedia is providing a table of contents for an article you view it by tapping on the table of contents button. Tapping on an item in the list navigates to the corresponding part of the article.
To switch from history to alphabetical index use the top right button in the index table. Tapping on an item shows the article.
To switch to the keyword index use the top left button in the index table. Tapping on an item shows all articles with this keyword.
Deleting articles means to remove them from the local storage. To remove the currently viewed article use the delete button as shown above. To remove articles from the history or the alphabetical index swipe from left to right over the title in the list. To delete all saved articles use the appropriate button in the settings section.
You should delete articles you do not need anymore to save storage space on your iPad.
To view the current article in the integrated browser tap on the button above.
From here you can access Google search if you do not find in Wikipedia what you are looking for.
You can enter new keywords after tapping on the new keyword button. The title of the currently visible article is shown on top.
Type the keyword in the enter keyword field and tap on the + button or use the enter key of the keyboard. If you want to assign the title of the article as a keyword tap on the title.
Switch to the existing keywords table. Already assigned keywords are marked in the list.
To add a keyword to or remove it from the currently displayed article just tap on a keyword in the list. Tapping on "No keyword" removes all keywords from the current displayed article. You can also use the new keyword button as described here. If you tap on a keyword in the list this keyword is temporarily saved to the enter keyword field and stays there until you empty the field or type in another term. So if you view another article this is a convenient way to add the last used keyword to this article.
You can also remove a keyword from an article by viewing the articles assigned to this keyword and swiping from left to right over the title of the article.
To delete a keyword open the keyword list and swipe from left to right over the keyword. This will remove the chosen keyword from every article it was assigned to and remove it from the keyword database. To delete all keywords at once please use the appropriate button in the settings screen.
A word to a wise person is sufficient!