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VoiceClone AI — Flutter App Case Study by CueBytes
Client

VoiceClone AI

Country

Australia

Platform

iOS + Android (Flutter)

Version

1.0.36

Type

AI-Powered Mobile App

Overview

AI Voice Generation on Mobile, Done Right

VoiceClone AI is a premium AI-powered voice generation platform built for an Australian client. The app enables users to clone voices, generate speech from text, translate voice across 100+ languages, and compose original music — all from a single mobile app.

The target market spans content creators, voiceover artists, educators, audiobook publishers, and marketing teams who need professional-grade voice generation on the go. We delivered the full product end-to-end: Flutter app, backend integrations, subscription system, admin tooling, and App Store / Play Store deployment.

The app is live on both the Apple App Store and Google Play Store under the brand name Voice AI at voicecloneai.app.

Tech Stack

Flutter 3.9+ · DartElevenLabs API (TTS, Voice Clone, Music)Google Cloud Text-to-SpeechBLoC / Cubit + GetIt DIIn-App Purchase (iOS + Android)Firebase (Analytics, FCM, Crashlytics)Sentry Performance MonitoringHive + Secure StorageDio Networkingflutter_sound + audioplayers

The Challenge

What the Client Needed

Mobile-first AI voice generation accessible on both iOS and Android

Deep integration of multiple AI providers — ElevenLabs and Google Cloud TTS — in a unified pipeline

Global user base support with multilingual UI and voice translation across 100+ languages

Sustainable monetisation via a tiered subscription model with native IAP on both platforms

Polished, native-feeling UI with full dark and light mode support

Admin support tooling to manage customer tickets alongside the consumer app

What We Built

15 Features Delivered

AI Voice Cloning

Users upload audio samples to create personalised voice clones via the ElevenLabs Voice Cloning API. The cloned voice is immediately available for TTS generation.

Multi-Provider TTS Engine

Three-layer TTS pipeline: ElevenLabs Neural TTS (eleven_v3), Google Cloud Neural TTS, and a Flutter system TTS fallback for free-tier users.

AI Music Generator

Conversational UI for generating original music from text prompts using ElevenLabs music_v1. Configurable duration (3–600s), style, and quality.

100+ Language Voice Translation

Real-time voice-to-voice translation pipeline combining speech-to-text, language translation, and voice synthesis — with voice characteristic preservation.

Voice Library — 1,000+ Voices

Searchable, filterable library of professional voices from ElevenLabs. Browse by language, gender, accent, and use-case category.

3-Tier Subscription Model

Native in-app purchases on iOS (StoreKit) and Android (Play Billing). Free, Pro, and Business tiers with server-side subscription verification.

Templates & Project Management

Save voice configs as reusable templates. Manage all generated voice and music projects from a central dashboard with usage statistics.

In-App Support Ticket System

Users submit tickets with file attachments and voice recordings. A complementary Admin Dashboard lets the support team manage all tickets directly.

Screens Delivered

20+ Screens Across All User Journeys

1

Splash, Home, Create Voice (Voice Clone + TTS tabs)

2

Music Generator, Voice Translation

3

My Voices, Voice Library, Templates

4

Login, Signup, Password Reset

5

Profile, Subscription, Settings

6

Language Selection (5 languages)

7

Support Ticket List, Create Ticket, Ticket Detail

8

Admin Tickets, Admin Ticket Detail

9

Privacy Policy, Terms & Conditions, FAQ

Design

Visual Identity & Branding

Primary

#FF7D40

Accent

#00D4AA

Background

#121212

Surface

#2D2D2D

Typography: Lato (Google Fonts) — Regular 400 → Bold 700. Clean modern typeface chosen for readability across AI-heavy content screens. Full dark and light mode support across all 20+ screens with consistent design tokens.

Results

What We Shipped

Published to Apple App Store and Google Play Store

3 AI providers integrated in a unified pipeline

20+ screens with full dark and light mode

5-language localisation including RTL (Arabic, Urdu)

100+ language real-time voice translation

Complete subscription system with server-side verification

Admin support dashboard shipped alongside consumer app

Full observability with Firebase Crashlytics + Sentry

Need an AI-powered mobile app built for both iOS and Android?