Having the Evasi0n Jailbreak accessible for everybody and compatible with almost all iOS 7 devices, people hurry to download this amazing jailbreak tool and start jailbreaking. However, even if the release of Evasi0n 7 was quite a surprise for most people, it still needs some time until it becomes fully safe and secure.
The good news is that we do not have that long to wait because app developers, as well as jailbreak developers, are working hardly in order to prepare all apps and tweaks for the latest jailbreak possibility. On the other hand, Cydia’s creator, Jay Freeman has suggested that the latest jailbreak release might be considered a little bit too rushed, and it did not allow people to get the necessary components in place in order to support all users. However you can still get Cydia iOS 7 on your iDevice if you jailbreak it.
In the same time, Freeman has also said that the Evad3rs team has not tested his official build of MobileSubstrate that has been revealed to developers within the iOS community. In order to make things clear, without the Substrate support, users will not be able to install any tweaks and offerings that rely solely on it.
On the other hand, there is a solution. Users will have to choose between waiting until the Evad3rs team fixes the problem with all those tweaks relying on MobileSubstrate or you can check the list of compatible tweaks and make use only of those who are currently compatible. At this point, a Google Spreadsheet has been created, and it offers the names of popular Cydia apps and their current status, as well as supported devices.
In this respect, My3G and MyWi have both confirmed to be working, as well as PkgBackup, SBUtils as well as the popular iFile. All of them show only partial compatibility with iOS 7, but they also experience different problems and full system crashes.