Enhance Speech Therapy Flutter App

Extend Existing Speech Practice App (Firebase Backend)Project Overview

We have an existing Flutter mobile application designed to help children practise speech sounds at home while waiting for speech therapy support.

The core functionality has already been developed using Flutter and Firebase. We are now extending the app with two additional learning activities that reuse the existing sound library and database structure.

Existing System

• Flutter mobile app
• Firebase Firestore backend
• Sound library (~500 sound records)
• Audio playback and recording
• Practice session engine with progression tracking
• Reward stickers and avatars
• Firebase Storage for recordings and images

New Features Required

Activity Selection Screen

Add a screen allowing users to choose:

Practice (existing feature)
Listening Activity
Find the Sound
Resources

Listening Activity

• App plays an audio word
• Two image options appear
• Child selects the correct image

Find the Sound Activity

Prompt example:

Which word starts with /b/?

• Three image options appear
• One correct answer
• Two distractors

Activity Logic

Activities must:

• Query sounds where image_ready = true
• Query sounds where activity_enabled = true
• Select target words from the child's current_group
• Use the full illustrated pool for that group
• Generate 4 questions per session
• Randomise answer order

Distractor Rules

Listening Activity

1 target
1 distractor from a different sound group

Find the Sound

1 target
2 distractors from two different sound groups

Additional Rules

• Do not repeat the same target within a session
• Avoid repeating distractors within a session

Backend Logging

Each activity attempt must store:

activity_type
child_id
sound_id
word
selected_answer
correct_answer
is_correct
response_time_ms

Resources Tab

Simple screen listing external helpful links that open in the device browser.

Milestone Structure

Milestone 1

Activity selection screen
Listening Activity
Randomised word logic
Firestore attempt logging

Milestone 2

Find the Sound Activity
Resources tab
Final testing and integration

Requirements

Flutter development experience
Firebase Firestore experience
Clean scalable code structure

Assets Provided

Sound library spreadsheet
Audio recordings
Illustrated word images

Goal

Extend the existing application while keeping the architecture scalable so additional sounds and activities can be added later without rebuilding the system.