Struggling with IP lookup accuracy for my city name tool

hey everyone, just launched this little web tool called 'What is my City Name' a few months back, and it's actually getting some decent traction, which is awesome. people seem to find it useful for quick checks. but man, i'm running into a prety consistent wall with the accuracy of city-level results. especially for folks on mobile or using vpns, the location data is often way off, like showing a totally different state or even country sometimes. it's really hurting the user experience, you know, when the tool tells you you're in new york but you're actually in los angeles. that's just a bad look for a tool named "what is my city name". right now i'm using a free tier of a prety popular ip geolocation api, i won't name names but it was easy to integrate and seemed okay at first for basic country/region stuff. but for city-level precision, it's just not cutting it. i also tried a local database initially but keeping that updated was a nightmare. i've looked into a few other ip geolocation api providers, some promise better accuracy but the pricing jumps real fast. i'm a solo founder trying to keep costs down. i even tried caching some results for frequent IPs, but that doesn't help with the initial wrong lookup. manual validation is obviously not scalable. integrating some of these bigger services also looks like a bit of a project, and i'm trying to stay lean. the main issue is finding that sweet spot between really high accuracy, especially for mobile and weird ip blocks, and not breaking the bank. so yeah, i really need something that can deliver high accuracy at the city level, that's affordable for a small saas, super easy to integrate into my existing setup, and has good coverage for all sorts of ip types, including those tricky mobile carrier ips. does anyone here have solid recommendations for reliable and cost-effective ip lookup apis or services that can give precise city-level geolocation? and any specific advice on tackling those mobile ip accuracy issues, like are there certain providers better at that?