Geolocation API for My Tool?

Hey everyone, I'm a super new developer just getting my feet wet, and I recently launched a really simple web tool called 'What is my City Name'. It's pretty basic, but I'm trying to learn as much as I can, so please excuse my noob questions!

Right now, my tool relies on a basic, free IP address lookup service to figure out where users are. It works okay for the most part, but I've started noticing a few pain points. Sometimes the city names are just plain wrong, which is a bit embarrassing, and the response times can be a little slow, especially as more people start using it. I'm worried this will become a bigger issue as traffic slowly grows.

So, I'm hoping you experienced folks can help me out. I'm looking for recommendations for a more reliable, accurate, and cost-effective IP geolocation API or service. What do you use for your web tools to get accurate location data?

Specifically, here are a few things I'm really hoping to find:

• Accuracy: This is probably the biggest one for me. I need something that's really precise, especially since I'm hoping to have users from all over the world.
• Speed & Low Latency: Quick response times are crucial for a smooth user experience.
• Pricing Model: As a solo developer on a tight budget, I'm looking for something that's beginner-friendly but can also scale without breaking the bank if the tool takes off.
• Ease of Integration: I'm still learning, so good documentation and straightforward integration would be a huge plus.
• Scalability: Something that can handle future user growth without major headaches.

Any insights, personal experiences, or specific API recommendations would be incredibly helpful. I'm really keen to improve my tool and provide a better experience for users. Help a brother out please...