Struggling with IP Geolocation Accuracy: Why Do IP Lookup Tools Show Different Locations?

Hello everyone!

As a complete beginner, I'm trying to understand IP lookup tools for some basic analytics for my small SaaS project, but I'm consistently running into a wall of inconsistencies. I'm hoping some experienced folks here can shed some light on what I'm missing.

The core problem I'm facing is the significant discrepancies in IP geolocation accuracy when using various online tools and APIs for the exact same IP address. The reported locations often vary wildly, from different cities within the same country to sometimes even entirely different countries. It's really confusing when trying to get a reliable sense of where my users might be.

Here's what I've tried so far to understand this better:

• I've used several free online IP lookup websites (e.g., whatismyip.com, iplocation.net) and compared their results.
• I even experimented with a trial of a paid API (e.g., MaxMind GeoIP2) to see if premium services offered better consistency.
• I've tried looking up my own IP address and the IPs from various test VPNs to observe the range of results.

Based on these attempts, I have a few specific observations and questions:

• Why is there such a noticeable difference in reported locations, even for major ISPs that you'd think would have stable data?
• Is it common for IP lookup tools to have such varying levels of geolocation accuracy? I expected some differences, but not this much.
• What factors primarily contribute to these discrepancies? Is it data sources, update frequency, different methods for proxy detection, or something else entirely?
• As a noob, how can I choose a truly reliable IP lookup service for better accuracy without breaking the bank?
• Are there specific best practices or tools you recommend for improving IP geolocation accuracy, especially when my goal is to identify a user's general region or city, rather than their precise street address?

Any guidance from experienced users on how to navigate this maze would be incredibly helpful and genuinely appreciated. Thanks in advance!