Workflow analysis & UI design
Observe how staff work, then design screens with as few steps as possible.
Android apps that field teams actually use.
Sentra designs and builds Android apps, and iOS when needed, from your team's workflow: attendance, inspections, field reports, payslips, and data collection. Complete with a web dashboard for admins and leadership.
Works offlineWeb dashboardConnected to HRIS/ERPProblems we often see
- Field reports are still on paper or in chat groupsData is scattered, late, and has to be retyped at the office.
- The app was built but nobody uses itThe flow does not match real field work, has too many steps, or fails without signal.
- Data does not connect to other systemsAttendance, payroll, and reports stand alone, so manual work remains.
What we do
Android & iOS apps
Built for the phones and tablets your team actually uses, including mid-range devices.
Admin web dashboard
Summaries, approvals, report exports, and user settings from the browser.
Offline mode
Data is stored on the phone without signal and sent automatically once connected.
System integration
Connect to HRIS, ERP, payroll, CCTV, or existing databases through APIs.
Publishing & maintenance
Release to the Play Store or internal distribution, updates, and user support.
Example projects
Apps already running at Sentra clients.
Bukit Baiduri Energi · 2024HRIS Sentra: Attendance, Payroll & Mobile Payslips
Attendance, payroll, and employee information in one flow.
Universitas Mulawarman · 2025Smart Attendance: Face Recognition Attendance
Automatic attendance with face recognition from cameras.
Oil Palm Plantation · East Kalimantan · 2025IoT Weather & Soil Moisture Monitoring
Soil and weather conditions from sensors, straight to field officers' phones.
Used in
Mining
Unit pre-use checks, shift reports, mess attendance, and payslips.
See solutionGovernment
Public service apps, officer reporting, and field data collection.
See solutionPlantations
Sensor data and estate work right on the field officer's phone.
See solutionHealthcare
Patient registration and queueing from a phone.
See solutionCompanies
Leave, overtime, approvals, and employee payslips.
See solutionEducation
Attendance, academic information, and student services.
See solutionHow we work
- Workflow analysis
- Design & prototype
- Incremental development
- Field testing
- Release & maintenance
Frequently asked questions
Only Android, or iOS too?
We can build both. For field teams that all use Android phones, starting with Android is often faster and more economical.
Can the app work where there is no signal?
Yes. Data is stored on the device and sent automatically when a connection is available, which suits mine sites and estates.
How long does it take?
It depends on features and integrations. We usually start with a first version of the core features, test it in the field, then expand step by step.
Who owns the code and the data?
The data belongs to the client, and the app can run on the client's server or private cloud. Code ownership is set out in the contract.
Is there support after release?
Yes. We provide fixes, updates for new Android versions, and further feature development.
Have a process you want to move into an app?
Tell us the workflow and who the users are. The first discussion is free.
- Free first discussion
- In-house team
- Supported after release