The best replacement for gevey is r-sim.

The best alternatives to gevey are rated as following:
★★★★★  r-sim
★★★★★  gpp
★★★★  factory unlocked
★★★  x sim
★★  r sim
★  turbo sim
  over gevey

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Speaking about gevey, one probably shouldn't forget about ios 6.

Other search terms related to gevey and their ratings are:

★★★★★ ios 6
reset sim
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