Beijing Tianrun Hengyuan Technology Co., Ltd. designs, develops and publishes a curated suite of mobile applications — from offline route planning and collection archiving to family receipt scanning and habit tracking — engineered around one promise: your data never leaves your device.
Six verticals, one philosophy. Every app in our portfolio is built to operate independently on-device so your data stays yours — always.
Plan, import and resolve trails fully offline. Topographic overlays, GPX/KML parsing, elevation profiles, waypoint libraries — built for explorers who leave the signal behind.
Catalog coins, books, vinyl, watches, sneakers, plants or anything you collect. Rich metadata, valuation timelines, photo evidence and PDF export — entirely on-device.
A frictionless spark vault for writers, poets and creators. Capture fragments, tag moods, link fragments into outlines, and let your library stay yours — never uploaded, never mined.
Comprehensive training load analytics: heart-rate-zone, MET, RPE, TRIMP and TSS calculators. Personal records, weekly load distribution, fatigue index — all private, all local.
High-fidelity OCR for receipts, invoices, warranties and handwritten notes — processed entirely on-device. Smart categorization, monthly budgets and tax-ready exports.
A meditative habit companion. Streaks, chains, daily rituals, custom cues, calendar heat-map. Zero analytics, zero nudges from someone else's algorithm — only your intention.
Beyond mobile applications, we provide professional services across the entire digital product lifecycle.
Native Kotlin & Swift pipelines, cross-platform Flutter & React Native modules, AI edge inference, and ARCore / ARKit experiences for global Tier-1 markets.
Bespoke marketing sites and operational platforms — SEO-optimized, blazing fast, accessibility-first, designed for international markets.
What partners and end-users say after shipping with us — the quiet, honest kind of feedback that lasts.
“Tianrun took our clunky internal tools and shipped six beautifully offline-first apps in fourteen months. Their privacy stance wasn't marketing — it was an engineering constraint, baked into every commit.”
“We've worked with bigger studios. We've never worked with a sharper one. The AdMob waterfall they built lifted our ARPDAU 18% with zero dark-pattern trade-offs. That's the difference.”
“I trusted them with the Receipt Scanner for a sensitive family app. They came back with on-device OCR that worked in airplane mode. The reviews wrote themselves.”
We obsess over the small details of every interaction — because quiet, respectful tools age the best.
“Data stays local” is not a slogan, it is our engineering constraint — baked into every architecture choice.
We hold both craft and engineering to the same high bar — pixel polish is a usability feature.
Tier-1 market compliance, multilingual UX, currency, GDPR & CCPA — ready from the first commit.
We run weekly research sprints to explore offline AI, edge ML, AR mapping — then ship what works.
Everything you need to know before we start a conversation. Need something more specific? Reach out.
Correct — the user-generated content inside our apps (routes, journals, habit logs, receipts, collections) lives entirely on-device by default. We don't run a backend that mirrors it. Aggregated, anonymized diagnostics and billing receipts are the only exceptions, and both are documented in detail in our Privacy Policy.
Most of our portfolio apps shipped in 8–14 weeks from kick-off to first public release. That assumes a clear scope and weekly design reviews. White-label co-development and complex enterprise projects range from 3 to 9 months. We'll always give you an honest range after the discovery call.
Yes. We are an established Google Play developer with a Tier-1 ad mediation stack and full Designed for Families certification. Our iOS builds use Apple StoreKit 2 with App Privacy Labels and the App Tracking Transparency prompt. We also publish on Huawei AppGallery, Amazon Appstore, Samsung Galaxy Store and Microsoft Store where it makes commercial sense.
A hybrid IAA + IAP model mediated by AppLovin MAX, with primary networks including Google AdMob, Meta Audience Network, Unity Ads, ironSource, Pangle, AppLovin Exchange and InMobi. All ad placements are frequency-capped, contextual by default, and disabled for users under 13 in compliance with Google Play Families and COPPA. IAP is processed via Google Play Billing v6 or Apple StoreKit 2 with server-side receipt verification.
Absolutely. We have a master MSA template that can be turned around within 48 hours, and we execute bilateral NDAs and DPAs (incorporating EU SCCs, the UK Addendum, or China CAC Standard Contract) on request. Our DPO is reachable at .
Headquartered in Beijing with engineering hubs in Manchester and Lisbon. Customer support runs 09:00–18:00 (UTC+8) on weekdays with a follow-the-sun incident-response rotation covering 24/7 for production-critical services.
Privacy is engineered, not bolted on. We run Data Protection Impact Assessments before every release, honor GPC and ATT signals, and use TCF v2.2-compliant CMPs. Regional residency options include EU-Frankfurt, US (multiple regions), APAC, and PRC-localized storage with CAC-approved cross-border transfer mechanisms.
Yes — all six apps in our portfolio are live on Google Play. The Outdoor Offline Route Resolver and the Periodic Habit Tracker are great entry points to evaluate our craft, performance, and ad mediation feel. Direct APK previews for white-label partners are available under NDA.