We started in 2016 as Beijing Jingcheng Boyuan Technology and have operated as Beijing Orangezh Technology since December 2023: the same legal representative and the same delivery team.
Native iOS & Android · BLE, Modbus, MQTT and RS-485 · Computer vision & LLM applications · App Store and Google Play publishing
Our founder has shipped native iOS apps since 2012. Swift on iOS, Kotlin or Java on Android.
One team, one legal representative, two registered companies. Both business licences can be verified.
Delivered across 160+ signed contracts: apps, device software, data platforms and business systems.
Bug fixes and small adjustments after launch are included, as agreed in the contract.
One team covers the app, the device connection, the model and the store release. No hand-offs between suppliers.
Swift, Kotlin and Java. Including apps that talk to hardware over Bluetooth, USB and local networks.
Read data from devices, show it clearly, and send commands back. Industrial, energy and medical equipment.
LLM features that hold up in production, and custom vision models for the scenes off-the-shelf AI cannot handle.
Get an app approved, released and kept in the stores: accounts, signing, review rejections and compliance.
Client names are replaced with descriptive aliases. Every entry links to the full Chinese write-up.
An overseas social video start-up
A native Swift app, from version 1.0 in 2024 through a full 2.0 rebuild, together with a Python model service for image-to-text, video and music generation. Released on the US and UK App Stores in 2026 and still being updated.
A Hong Kong marketplace operator
A customer app, a merchant app and a web front end from one cross-platform codebase, on a Java microservice back end. Traditional Chinese and English interfaces with Facebook sign-in; released to the App Store in several regions and to Google Play.
An overseas social app operator
Voice chat rooms on native iOS (Swift) and Android, plus a web front end, localised into more than 70 languages with in-app purchases on Google Play. Live on both stores since 2022 and still updated regularly.
A US property rental business
Tenants, landlords, agents and administrators in one platform, with landlord verification, Google sign-in, bulk listing import and an admin console, delivered with an automated deployment pipeline.
Full write-up (Chinese)
A 3D scanning technology company
An end-to-end chain from phone capture to finished 3D model: iOS scanning in Swift, a reconstruction engine in C++, and Python processing stages. Eight repositories, maintained from 2024 to 2026.
Full write-up (Chinese)
A US foot-care and orthotics company
Two native Swift apps that capture the foot in 3D and turn the scan into a custom orthotics order. Released on the US App Store, with the first app maintained and updated since 2022.
Full write-up (Chinese)Before any code, a feature list with what is included and what is not. That list becomes the acceptance checklist.
Every screen agreed before development, including error and refund flows.
Working software at each milestone, tested by our QA engineers before you see it.
Source code, deployment notes, user manuals and an access list, followed by 12–24 months of free maintenance.
What the product does, which platforms or devices are involved, and your timing. We reply within three working days, in English, with questions or a short written proposal.
