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Proptech · MOBILE · 2024
Keystone
The whole deal, from the driveway.
Agents pull comps, run a valuation, and send an offer before they leave the property.
Client
Regional brokerage, 400 agents
Year
2024
Duration
4 months
Our role
Mobile app, valuation API, offline sync
THE CHALLENGE
Agents worked off three disconnected tools and a laptop back at the office. Comps were stale by the time an offer went out, and deals stalled over the weekend.
OUR APPROACH
- 01Put listings, a live comp map, and a valuation model in one offline-capable app.
- 02Built a valuation API that blends recent sales, active inventory, and property attributes.
- 03Added in-app offer generation with e-signature so nothing waits for the office.
WHAT HAPPENED
Time from showing to a sent offer dropped from two days to under an hour. Agents close more of what they show, and the valuations hold up against final sale prices.
- Showing → offer
- 2d → 55m
- Valuation accuracy
- ±3.1%
- Agent adoption
- 91%
BUILT WITH
React NativeTypeScriptPostgreSQLFastAPIMapbox
IMPACT REPORT
Speed from doorstep to signed offer
Tracked across 400 agents over the first two quarters of use.
55 min
from 2 daysShowing → offer
±3.1%
vs final priceValuation accuracy
91%
Agent adoption
+28%
Offers per showing
Hours from showing to sent offer
Weekly agent adoption
GALLERY
