Engineering note
Three App Store launches in five days: how Olympus ML ships apps
In September 2026 Olympus ML shipped tripswipe, HerpBase and Trstmap to the App Store in five days, alongside Eurekuh on the web. How we take apps from idea to store with Expo, React Native and Supabase.
Between 15 and 19 September 2026, three apps we built went live on the App Store: tripswipe on the 15th, HerpBase on the 17th and Trstmap on the 19th. Meanwhile Eurekuh, our social media scheduler, kept shipping on the web. This post covers what we built and how a small studio ships at that pace.
What we shipped
- tripswipe: a country tracker with a real 3D globe. App Store · Google Play · tripswipe.olympusml.com
- HerpBase: reptile husbandry records that work offline. App Store · herpbase.olympusml.com
- Trstmap: a map of places your friends recommend. App Store · trstmap.com
- Eurekuh: publish to ten social networks from one dashboard, with an MCP server for AI agents. eurekuh.com
One stack, reused
All three mobile apps run on Expo and React Native with Supabase for auth and data, and Sign in with Apple and Google. Using one stack means a solved problem stays solved: account deletion, privacy pages, store listings and over-the-air updates work the same way in every app. When only JavaScript changes, we ship an over-the-air update instead of a new store build, so fixes reach users in minutes, not days.
Each app has one hard thing, done properly
A shared stack frees up time for the part that makes each product worth using. In tripswipe it is the globe, a per-pixel projection in a Skia shader. In HerpBase it is working fully offline, with a local SQLite database as the source of truth. In Trstmap it is a social model with no feed and no followers, only friendships both people accept. In Eurekuh it is publishing natively to ten different APIs, each with its own rules.
Privacy is a feature, not a footnote
tripswipe, HerpBase and Trstmap carry no ads and no third-party tracking. That is not only principle: it makes the privacy labels short, store review smoother, and the pitch simple. Each app lets people delete their account from inside the app, and every one has a plain-language privacy policy on its own site.
Small sites, linked together
Each product has its own site with store links, a privacy policy and support. Each also has a case study in our portfolio that links out to the product. It is cheap to set up, and every launch helps the others get found.
Building something?
We take products from idea to App Store, Google Play and the web, from AI agents to consumer apps. Book a strategy call and tell us what you are building.