
I built a mobile-first parcel map app and would love honest feedback from GIS people
Hi r/gis,
I’m one of the people building a US parcel/property map app, and I’d really appreciate blunt feedback from people who work with GIS, land records, parcels, or local government data.
The basic idea is simple: a mobile-first parcel map where you can search addresses/places, tap parcels, and see property boundaries plus related public-record data in one place.
Some of the things we’re trying to make easier:
- parcel boundaries on top of satellite imagery
- owner / mailing address info where available
- property and sales/tax-related data where available
- nearby context for land buyers, brokers, hunters, survey-adjacent workflows, etc.
- some integrations/enrichment from sources like Zillow where it’s useful
I know parcel data is messy, local, and often better at the county level than in any nationwide product. That’s actually the main reason I’m asking here rather than just guessing.
What I’d love feedback on:
For people who use parcel viewers regularly: what is usually missing or annoying?
What data would make a parcel app actually useful for your work, not just a nice-looking map?
How important is mobile UX vs desktop/web for parcel workflows?
Are owner contact details useful, or does that make the product feel too “lead-gen” and less GIS-focused?
What would immediately make you distrust a parcel data product?
The iOS app is here if anyone wants to try it:
And if you don’t want to install anything, there’s a limited web version here:
Not trying to pitch this as a replacement for county GIS portals or professional GIS software. I’m mostly trying to understand where a consumer/prosumer parcel app can be genuinely useful, and where the current version is weak.
Happy to take harsh feedback — especially about data quality, UX, missing layers, or anything that feels misleading.