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A bug in Onion Browser 1.5.1 — available between May 22 and June 19 — may cause the app to disappear in such a way that the App Store app still belives the app is on the phone (which prevents a user from reinstalling). A possible fix appeared in Onion Browser 1.5.2, which was released on June 19.
The following steps will allow a user to uninstall and reinstall the app:
Try force-quitting the app and opening it again.
(The way Tor is is implemented in this app can conflict with the way iOS handles "sleeping" apps. This problem sometimes happens when the phone goes to sleep or if you go to another app and then come back.)
Try force-quitting the app and opening it again.
(Your network provider may be blocking connections to Tor. If you are an advanced Tor user and would like to try using "bridge" nodes to access Tor: see the "Using Bridges" section below.)
No. These services generally require using a dedicated app (instead of a web browser) to access streaming content on mobile devices. Using Onion Browser to access these streams is not currently supported.
Due to the secrecy of these sites and the semi-random “.onion” domain name, it is often hard to know the address of the site you’re looking for and if the site you’re going to is the real deal or if it’s a fake.
But I’m not a qualified directory for “.onion’ websites and likely don’t use the hidden website you are asking about. For what it’s worth, Onion Browser does come with several built-in bookmarks that I’ve selected and some of these do contain links to a variety of ".onion" sites, curated by folks around the internet. “The Cleaned Hidden Wiki” and “Reddit /r/onions” are both good places to start.
Searching the internet (via DuckDuckGo or Google) or checking Wikipedia (for more prominent sites) will be your best bet.
First make sure your iOS device is updating it's time automatically (Settings→General→Date & Time→Set Automatically), since connections to .onion sites require accurate system time.
Second, try accessing another hidden service — such as the hidden service for the Onion Browser website (tigas3l7uusztiqu.onion/onionbrowser) or the hidden service for the Tor Project website (idnxcnkne4qt76tg.onion) — to see if it's an issue with the hidden service you're trying to use. If you can connect to other services, the one you are trying to access may be down. As mentioned the Tor Help Desk Roundup in this post, "Hidden services are solely under the responsibility of their operators and they are the only one that can do something when a hidden service goes offline."
A list of known issues and “work in progress” future features can be found on the GitHub bug tracker. If you have a GitHub account, you can report issues over there, too.
For questions, glaring concerns, or compliments you can also contact the developer directly.
Apple can give you a refund if the app isn’t working for you. Click here for info on how to request a refund.
There's no guarantee that Apple will provide a refund in every case, but it’s still worth trying if you’ve tried everything else. Other issues with the App Store or your Apple ID should go to Apple iTunes Support.
In a nutshell, bridges allow you to connect to Tor via unpublished relays — if you are in an area where Tor traffic might be blocked, this might help with connection issues. (Note, networks and countries that block Tor via deep packet inspection will still render the app unusable.) For more information, read the Tor Project's documentation on bridges.
Onion Browser has a (very rough) interface for configuring the use of Tor bridges. There are two ways to access this menu:
How to configure bridges:






If you find that the app gets stuck at "Connecting..." and it did not before, go back to the bridges menu, double-check your work, and then restart the app. If this still happens, remove all bridge lines and then restart the app.