iOS Stand-Alone GPS Spoofer App

I want a small iOS app that lets me set any fake GPS position system-wide and switch back to my real location with a single on-screen button. The spoofed coordinates must be respected by every app on the phone—Maps, social media, fitness trackers, everything—without needing to plug the device into a Mac or PC each time I change the spot.

Core needs
• Spoof location globally across all apps.
• In-app button toggles between real and fake position instantly.
• Runs entirely on the iPhone once installed; no computer tethering or background desktop helper.
• Clean, intuitive interface so I can drop a pin, search an address, or enter lat/long manually.

Acceptance criteria
• Provide a signed IPA or an Xcode project I can build myself.
• Tested on the current public iOS version and at least one previous major version.
• When the toggle is off, all apps read the genuine GPS feed again within seconds.
• When the toggle is on, apps that normally request high-precision location show the spoofed point consistently for a minimum of 30 minutes without drifting.

I’m happy to discuss whether the solution relies on TestFlight, sideloading, or a jailbreak, as long as the end result meets the above behaviour. Please outline your proposed technical approach, any system limitations Apple may impose, and a realistic timeline for delivering a demo build and final release.