Tianrun Hengyuan Tech
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Six apps. One craft. Endless possibility.

From pixel-pushing UI to award-grade engineering — here's every product, platform and capability that defines Tianrun Hengyuan Technology.

App Matrix

Our published application portfolio

All six apps are published on Google Play, monetized through IAA & IAP, fully compliant with Google Play Families Policy and global data-protection regulations.

Outdoor Offline Route Resolver

Plan, import and resolve trails fully offline. Topographic overlays, GPX/KML parsing, elevation profiles, waypoint libraries — built for explorers who leave the signal behind.

AndroidiOS-readyOffline
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Collection Asset Archiving System

Catalog coins, books, vinyl, watches, sneakers, plants or anything you collect. Rich metadata, valuation timelines, photo evidence and PDF export.

AndroidiOS-readyLocal DB
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Writing Inspiration Capture Engine

A frictionless spark vault for writers, poets and creators. Capture fragments, tag moods, link fragments into outlines — never uploaded, never mined.

AndroidiOS-readyCloud-free
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Exercise Load Calculation Tool

Comprehensive training load analytics: heart-rate-zone, MET, RPE, TRIMP and TSS. Personal records, weekly load distribution, fatigue index — all private, all local.

AndroidiOS-readyHealthKit opt-in
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Family Receipt Local Scanner

High-fidelity OCR for receipts, invoices, warranties and handwritten notes — processed entirely on-device. Smart categorization and tax-ready exports.

AndroidiOS-readyOn-device OCR
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Periodic Habit Tracker

A meditative habit companion. Streaks, chains, daily rituals, custom cues, calendar heat-map. Zero analytics — only your intention.

AndroidiOS-readyNo tracking
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Monetization Models

Two complementary revenue engines

Every app in our portfolio operates on a hybrid IAA & IAP stack, mediated through layered ad platforms and a strict UX-first ads policy.

A · IAA — In-App Advertising

User-respectful advertising

Light-touch open-screen, rewarded video, interstitial and banner placements — scheduled around the user's natural attention budget. Frequency caps, child-directed safety and contextual filters by default.

  • Google AdMob, Meta Audience Network, AppLovin MAX
  • Unity Ads, ironSource, Vungle, Chartboost, AdColony
  • InMobi, Tapjoy, StartApp, Pinterest, TikTok, Snap, Reddit
  • Google "Families" compliant ads configuration
B · IAP — In-App Purchase

Premium unlocks & subscriptions

One-time unlocks, consumable credits and auto-renewing subscriptions, processed through Google Play Billing v6 and Apple StoreKit 2 with server-side receipt verification.

  • Google Play Billing Library v6
  • Apple StoreKit 2 server notifications
  • Paywalls, free trial & graceful downgrade UX
  • Local receipt validation & audit logs
C · Cross-platform Engineering

Native & shared code

Kotlin / Swift for performance-critical paths, Jetpack Compose & SwiftUI for UI, plus Flutter / React Native bridges. App size budgets kept under 30 MB.

  • Kotlin & Jetpack Compose (Android 8+)
  • Swift & SwiftUI (iOS 15+)
  • Flutter 3.x & React Native bridges
  • ML Kit, TensorFlow Lite, Core ML
D · Compliance & Policy

Privacy by design & by default

GDPR, CCPA/CPRA, LGPD, PIPEDA, UK GDPR, COPPA & Google Play Families — engineered and audited from day one, in 120+ jurisdictions.

  • Data Protection Impact Assessments (DPIA)
  • Age-gating, COPPA, GDPR-K verification
  • CMP & TCF v2.2 readiness
  • ISO 27001-style SDLC checkpoints
Ad Formats We Master

Every major ad format, tuned to feel native

We balance eCPM and user experience through format-specific design patterns, frequency caps and contextual placement rules.

Open-Screen (Splash)

First-launch, skippable after 3 seconds, brand-aligned, never deceptive.

Rewarded Video

User-initiated, opt-in, optional — granting in-app value (hints, exports, themes).

Interstitial

Shown at natural break points only, frequency-capped and contextualized.

Banner (Adaptive)

Smart banner, anchored, never obstructing interaction zones.

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