Business Client need Mobile App Development
Contact person: Business Client
Phone:Show
Email:Show
Location: Sydney, Australia
Budget: Recommended by industry experts
Time to start: As soon as possible
Project description:
"Mobile App Developer Needed (iOS / Android) – Focused Utility App
We are looking for an experienced mobile app developer to build a simple, high-polish utility app for iOS and Android.
This is not a complex platform, not an AI product, and not a large backend system.
It does, however, require excellent mobile fundamentals, OS-level experience, and discipline.
About the App
The app allows users to:
Pre-record a personal voice message
Assign it to specific contacts or groups
Automatically send an instant SMS with a secure audio link when a selected contact calls and the user does not answer
The app:
Does not answer calls
Does not replace voicemail
Uses device-sent SMS (no third-party SMS services)
Has a very strict, locked specification
A full developer specification and UX/UI spec are already complete and must be followed exactly.
What We Are Looking For
You must have:
Proven experience building native iOS and/or Android apps
Experience handling OS-level permissions and background behaviour
- Call state detection
- SMS sending
- Microphone access
Experience shipping apps to the App Store and/or Google Play
Ability to work from a clear specification without improvising
Strong attention to reliability, edge cases, and user trust
This is a precision build, not an experimentation project.
What You Do Not Need
AI / ML experience
Complex backend or scaling experience
Web-only or no-code platform experience
Feature ideation or “product improvement” suggestions
We already know exactly what we want built.
Scope & Expectations
MVP build (polished, review-ready)
Minimal backend (audio storage only)
Clean, calm, user-friendly UI
Strong focus on:
- Correct OS behaviour
- Reliability
- App Store / Play Store compliance
To Apply, Please Include
Links to real mobile apps you have built and shipped
Briefly explain your experience with:
- OS permissions
- Background behaviour
- SMS or call-related features (if any)
Confirm that you are comfortable building strictly to spec
Please contact me in chat" (client-provided description)
Matched companies (2)

El Codamics
