Hey maybe, glad i caught this as i'm off out today,
All the evaps i have had on cheapies are either a thin grey line or it was that the antibody strip was more noticeable once the test had dried, i've never had a evap on FRER or any other type of shop test.
10DPO is still really early hun, i could hardly see my lines then, and they wouldnt have been picked up on camera, more noticeable in RL.
I really hope its not a chemical again hun, will be keeping fingers crossed for you. i would say stick to the FRER and forget the cheapies. you are deffo not out.
No idea about the iphone pics though.
xxx