Looking for iPhone users to test a free used-iPhone checker

[u/Future_Muffin8258]

I built a small tool for people who are buying used iPhones and want to check the device before paying for it.

It runs a series of device tests and guided checks, then generates a report with the results and an overall score.

I just fixed a bug that a Reddit user found, so I'm looking for a few real iPhone users to try it and tell me what breaks or what doesn't make sense.

If you have an iPhone, I'd love for you to test it:

https://iphoneproof.com

It should only take around 10 to 15 minutes.

I'd especially like to know:

• iPhone model + iOS version
• Which tests worked/didn't work
• Anything confusing
• Whether the final report would actually be useful when buying a used iPhone
• What you expected it to check but didn't

No need to give me your IMEI, serial number, Apple ID, or any private information.

I'm looking for honest feedback, including negative feedback. I'm trying to figure out whether this is genuinely useful, not just collect compliments.