
Weltomat
Track and analyze multi-currency expenses with budgeting tools for travelers and digital nomads.
@andrejbuday · X
And th second one - - with completely new OG:image
The full gallery
Tech stack
22 projects

Track and analyze multi-currency expenses with budgeting tools for travelers and digital nomads.
@andrejbuday · X
And th second one - - with completely new OG:image

Collection of 125+ free calculators for finance, health, legal, real estate, and travel—no signup required.
@Arafat3599651 · X
Just launched 🧮 125+ free calculators — mortgage, BMI, debt payoff, compound interest, calories & more. No signup. No ads. Everything runs in your browser instantly. #buildinpublic #webdev #react

Get safety information about destinations to help travelers avoid tourist traps.
@RekonAstra · X

Create a shareable link for trip photos with no compression or app required.
@masterjesuser · X
if you planning a group trip or activity recently, try out to make photo sharing less of a pain

Save and browse restaurants you want to try, helping you decide where to eat.
@danielendara · X
Sure! let's connect! My latest creation is

Explore 150 legendary train routes on an interactive world map with facts about each line.
@Flightmussy · X

Spin the globe to find the world's sunniest, warmest, or rainiest places across 3,800+ destinations.
@Flightmussy · X

Find restaurants where locals actually eat, filtering out tourist traps.
kingchesco · HN
I know $90 for a dining app sounds absurd. And it’s not even an app; it's a wrapper for an LLM. But it is how it is built that makes it so expensive. I had to make a whole API just to call it (which because its own SAAS). All just to bypass dumb google reviews. Google Maps and reviews send people to places optimized for tourists and good copywriters. To find actual local hole-in-the-walls algorithmically, I had to first build that api (called BWENDI), a "spatial gravity" engine using 100GB+ of tweaked OSM, GeoNames, and other proprietary data. Instead of aggregating reviews, it mathematically calculates foot-traffic, throughput, transaction stats, and economic criticality among other factors. Bwendi is A Python/Node ETL pipeline feeding an LMDB-backed context API. It uses a proprietary 1MB binary grid served via Cloudflare Workers for millisecond edge reads with near-zero overhead, hosted in Switzerland. This was done of course to get the purest location context around every street

Observe geopolitical and geographical information on interactive maps
@oyoovi · X
做了一个地缘信息观察的网站,供大家免费使用: 首页基本要素综合

Search and view bus routes across England on an interactive map.
@Dave__Griffiths · X
Something similar I vibe-coded for buses:

Browse real-time traffic cameras across NYC's five boroughs on an interactive map.
@NWExplained · X
Not a startup, just something I made for myself

Enter a presence-based digital ecosystem with AI agents, music, and shared community experience.
@EllistriponX · X