LithoCanvas vs San Xuan Tang
Take a photo of a rock, crystal, gemstone or painting. Upload a floor plan for a room-by-room AI feng shui report based on Xuan Kong Flying Stars, Ba Zhai and Form School, with annotated plan. Both are listed in Productivity.

LithoCanvas
Freemium · 3 upvotes
Identify rocks, gemstones and art from one photo
View LithoCanvas
San Xuan Tang
Freemium · 0 upvotes
Upload a floor plan, get an AI feng shui report. First free.
View San Xuan TangWhat they have in common
Both sit in Productivity.
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What is LithoCanvas?
LithoCanvas is an Android app for people who collect minerals and art. Photograph a rock, mineral, gemstone, crystal or painting and the app suggests what it is. Mineral results come with an estimated confidence and typical properties such as hardness, crystal system, color and luster. Art results suggest style, medium, era and composition. You check each suggestion yourself; the app gives no valuation and no authenticity verdict.
Read the full LithoCanvas page →What is San Xuan Tang?
San Xuan Tang turns a floor plan into a structured feng shui report. AI recognises rooms, doors and windows, then applies Xuan Kong Flying Stars, Ba Zhai and Form School to map sha qi, wealth, Wen Chang and Peach Blossom positions, with remedies.
Read the full San Xuan Tang page →