Hi @kissu,
Thanks for reporting this. I understand how frustrating it is when the exported image looks noticeably darker than what you see while editing.
This is related to how newer iPhones handle HDR photos. Starting with the newer iPhone generations, particularly the iPhone 15 series and later, HDR capture and display have become more integrated into the imaging workflow. Apple also no longer provides the same option available on older iPhones to simply disable Smart HDR for photos.
Lightroom can therefore display the additional HDR range while you’re editing, but when you export using standard sRGB, you’re creating an SDR version. That conversion can make the exported image appear darker compared with the HDR image displayed on your iPhone.
Please try disabling HDR editing/display in Lightroom before making your final adjustments for an sRGB export and compare the result.
If you still see a significant exposure difference, please let us know, and we’ll be happy to investigate further.
Best,
Anshul Saini