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hidden-letters-map

藏宝地图:把信、语音、成就藏在真实的地方,对方走到附近才拿得到

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This is 1 of 23 launches in hyperlocal and interest-based community apps — see how it stacks up on momentum and crowding →

167 other launches read as similar to this one →

Details

External ID
1411758999
Source
GITHUB
Company
—
Product
hidden-letters-map
Website domain
github.io
Launched
Oct. 9, 2026
Cohort
—
Upvotes
36
Upvotes percentile
0.63
Tags
—

Enrichment

Niche
hyperlocal and interest-based community apps
Vertical
Media & entertainment
Function
Communication
Audience
B2C
AI stance
Not AI
Project type
Hobby / open-source project
Normalized one-liner
location-based treasure hunt messages for friends
Manually corrected
False

Could you build this?

Yes It is a straightforward geocaching/location-locked message app using browser/mobile geolocation, map rendering (e.g. Mapbox/Leaflet), and basic CRUD database storage.

Competitors

Other products that read as similar to this one — 167 launches clear the similarity bar, closest 8 shown.

Attention rank: #54 of 168 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).

Launched 343 days after the earliest competitor.

Other launches for this product