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I am looking for a Wiki-like webapp for an open source software community. Imper

ID: 660716 • Letter: I

Question

I am looking for a Wiki-like webapp for an open source software community.

Imperative requirements:

Anyone can edit, no need to wait for approval by anyone. Registration is OK, but editors must be able to edit immediately afterwards.
Viewable in all mobile web browsers.
Free
We don't have our own servers, so it needs to run "in the cloud"

Very desirable:

Built-in internationalization (an article can have French, Japanese, Spanish version, with interlinks between each language).
Editable in most popular mobile web browsers.

Bonus for:

No ads.
Either Markdown syntax or the same syntax as Mediawiki.
Fast.

Explanation / Answer

Wikia is not perfect:

Anyone can edit: OK
Mobile view: OK
Free: OK
Internationalization: Need to ask Wikia admin to enable feature.
Mobile edit: KO tried in Android Firefox for sample, did not work, empty text area.
No ads: KO
Syntax: OK
Fast: OK