OPK results

I took a test yesterday at 7pm, and again today at 7pm

This is what I have so far. Top is yesterday, bottom is today

Do these look any different? They look the same to me

The automatic checker on glow said that yesterday’s is about a 5 negative

And that today’s is about a 7 negative

But they look the same to me but different colours? Top looks purple bottom looks pink = confusion

This is the first cycle I’ve been <a href="https://play.google.com/store/apps/details?id=com.glow.android">tracking ovulation</a>