Book Spotter
iPhone and Android app that uses the camera and augmented reality to spot the books you are looking for on any shelf, offline, entirely on your device.
Details →← All workSoftware · iPhone app
ThriftSpotter
Photograph a thrift-store shelf and see what is worth picking up to resell.
In development, not releasedStatus as of November 12, 2026
ThriftSpotter runs on our own test phones today. It has not been submitted to the App Store and there is nothing to download yet.
Screenshots are from a development build.
What it does
A first look at the whole shelf
A reseller walking a thrift store has a few seconds per shelf. ThriftSpotter takes a photo of the whole shelf, picks out the items that should sell for more than the minimum you set, and puts a box and a price range on each one.
The estimate is an AI model reading a photo. It is a first filter, not an appraisal, so every item links straight to sold listings on eBay, where the real answer is.
- Photos queue up with no signal and send when the phone is back online
- Each item comes back with a name, a box on the photo, a low to high estimate, a confidence level, and what to check in hand before buying
- Green and yellow flags against your own minimum price
- One tap to sold listings on eBay for that item
- Reads barcodes and catalogue numbers, with a Discogs panel for records and CDs and a PriceCharting link for games and toys
- A ranked report across every photo from a trip
At a glance
- Status
- In development, not released
- Platform
- iPhone (iOS 17 and later)
- Planned pricing
- A handful of free scans, then scan packs or a subscription
- Testing
- More than 300 automated tests on the server alone
Built with
- SwiftUI, with no third-party dependencies
- Sign in with Apple
- Cloudflare Workers
- Claude vision models
- eBay and Discogs APIs
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Details →Need software like this built?
We scope it, build it, test it properly, and keep it running. You deal with the engineer who writes the code.
