We are a small, sharp team obsessed with privacy, craft and global usefulness. Our culture is the immune system of every product we ship.
Our mission is to make everyday tools that respect the user as a sovereign individual. Our vision is a digital life where "data stays local" is the default, not a feature.
Every Tianrun Hengyuan product exists to take a daily friction — getting lost on a trail, losing a receipt, breaking a streak — and turn it into a quiet, reliable, private experience.
We aim to ship one hundred serious, privacy-obsessed apps by 2030 — each able to operate on a phone in airplane mode and feel just as complete.
When in doubt, we go back to these. They are how we hire, how we design, how we ship.
If the user doesn't need a server, we don't ship a server. Data that doesn't leave the device can't be breached.
We hold craft — typography, motion, copy, micro-interactions — to the same bar as engineering. Polish is a usability feature.
Ads and unlocks must feel respectful. Frequency caps, contextual placement, transparent labels. Never dark patterns.
We design for translation, currency, accessibility, regional policy and connectivity edge cases before we ship the first build.
Every sprint reserves a few hours for research — edge ML, on-device LLMs, AR mapping. We explore so we ship smarter.
We keep apps supported for years, not quarters. Each release notes for old versions. We do not abandon users.
We publish architecture diagrams, deletion procedures and threat models — a calm, readable version of "what we do with your data."
Audits, DPIAs, COPPA-gates, GDPR-K checks — we treat them as competitive advantages, not paperwork.
Founded by a team of product engineers and former Google Play developers; headquartered in Chaoyang, Beijing with a single mission: build offline-first mobile apps for the long quiet.
Our flagship explorer app debuts at #9 in the "Hiking & Trails" category in the EU, and ships with full GPX/KML import and offline raster tile rendering.
Collection Asset Archiver, Writing Inspiration Engine, Fitness Load Calculator, Receipt Local Scanner and Habit Tracker launch in a coordinated privacy-first bundle.
Became a Google Play "Indie Games & Apps" featured developer; achieved tier-1 ad mediation stack with AdMob, Meta Audience, AppLovin MAX and Unity Ads.
Released the enterprise division: white-label app engineering, web platforms, ad mediation audits and DPIA-as-a-service.
Even a small studio needs shared rails. These are the rules we use to disagree productively.
We debate hard, document the decision, then unify behind it. Quiet-loud, not loud-loud.
Engineers, designers and PMs sit in the same Slack, share the same bugs, ship the same releases.
Writing, QA, support, marketing — everyone can patch a UI typo or a backend trace.
We pick proven, well-documented stacks over shiny ones — except in dedicated research sprints.