Customized Android-based Clinic Management App

I Project Title:
Need a Custom Android Clinic Management App (APK Only – Internal Use)
Project Description:
I am looking for an experienced Android app developer to build a custom clinic management application for my aesthetic clinic.
Important:
This app is only for internal use by me and my clinic staff.
It is not for the general public.
No Play Store publishing is required.
I only need a working APK that can be installed on Android phones and tablets.
Required Features
1. Patient Management
Add/Edit/Delete patient
Search patients by name or phone number
Unique patient ID
Patient demographics (Name, Age, Gender, Phone, Address)
2. Medical Records
Consultation notes
Diagnosis
Treatment history
Prescriptions
Follow-up notes
3. Appointment Management
Create appointments
Calendar view
Upcoming appointment list
Appointment status (Scheduled/Completed/Cancelled)
4. Before & After Photos
Capture photos from camera
Upload from gallery
Store multiple photos per patient
Before/After comparison
Organize photos by treatment and date
5. Treatment Records
Procedures performed
Products used
Session number
Next session date
Charges
Payment status
6. Patient History
Complete visit history
Previous treatments
Previous photographs
Notes from every visit
7. Dashboard
Today's appointments
Recent patients
Quick search
Basic clinic statistics
8. Staff Access
Multiple staff login
Admin account
Staff permissions (basic)
Technical Requirements
Android only
APK file required
Works offline (preferred)
Local database (or lightweight database)
Fast and clean UI
Compatible with Android phones and tablets
Secure patient data
Easy to use
Deliverables
APK file
Complete source code
Database
Documentation for installation
Free bug fixes for at least 30 days after delivery