With Gliph for iOS, we tried binary transparency by trying to track a hash of the app binary after building. The idea is we'd publish the hash with each version

With Gliph for iOS, we tried binary transparency by trying to track a hash of the app binary after building. The idea is we'd publish the hash with each version increment or include the hash in the description of the updates. However, I believe we found that Apple would alter the binary prior to release so we couldn't even guarantee the binary Apple was producing was ours. So it was not possible to allow users a way to validate even from the time of our closed-source build.