airsquared

airsquared is an independent software publisher whose entire catalog revolves around a single, highly specialized utility: blobsaver, a cross-platform desktop application that wraps the command-line tool tsschecker in a straightforward graphic interface so that iPhone, iPad, iPod and Apple TV owners can fetch and locally store SHSH blob files. These digital signatures act as downgrade tickets, letting users restore iOS or tvOS firmware to versions Apple has already stopped signing, provided they saved the blobs while the release was still current. Typical use cases include jailbreak preservation, troubleshooting bricked devices, and reverting from an unwanted update without losing the ability to unlock the filesystem. Because Apple’s window for signing older IPSW images rarely stays open more than a few days, blobsaver automates periodic background checks and can schedule unattended downloads whenever a new public firmware appears, storing the results in organized folders with clear device and build identifiers. The program runs natively on Windows, macOS and most mainstream Linux distributions, requires no elevated privileges, and offers optional integration with the system keychain for encrypted blob storage. Although its audience is limited to advanced Apple hardware enthusiasts, the tool is frequently updated to match Apple’s changing TSS protocols and is regarded within the jailbreak community as the simplest reliable GUI for what would otherwise be a tedious terminal workflow. The publisher’s sole product is available free of charge on get.nero.com, where downloads are served through trusted Windows package sources such as winget, always pull the latest release, and can be queued for batch installation alongside other utilities.