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Prime Depth Labs
Education & AITest preparation

Touchstone

IELTS preparation with AI speaking practice and band-score tracking.

Industry
Test preparation
Platforms
iOS, Android
Services
Product design, Mobile app, AI features
Touchstone French learning and onboarding screens
Selected screens
3
Learning levels
AI
Speaking feedback
2
Language tracks: English & French
01Context

The brief.

Touchstone helps students reach the IELTS band they need for university admission, migration or work abroad. The app turns preparation into a structured path with real-time feedback, plus language modules such as French, so students stay consistent until test day.

Interactive learning app for students preparing for IELTS: a step-by-step path, AI speaking practice with pronunciation feedback, mock tests, band-score prediction and a French module.

At a glance

Client
Touchstone
Industry
Test preparation
Platforms
iOS, Android
Services
Product design, Mobile app, AI features
The challenge

Students did not know where to start, or whether they were improving

  • No clear plan for how to structure IELTS preparation.
  • Speaking practice needs a partner most students do not have.
  • Many learners stop practising after a few days.
  • No way to measure band progress before the real exam.
The approach

A guided path with feedback at every step

  • Beginner, intermediate and advanced modules in a step-by-step path.
  • AI speaking practice with voice analysis and pronunciation feedback.
  • Daily goals, streaks, progress tracking and reminders.
  • Band-score prediction and skill-wise analytics.
02The build

The product,
feature by feature.

01

AI speaking partner

Voice analysis and pronunciation feedback on demand.

02

Band-score prediction

Skill-by-skill analytics and a predicted band.

03

Mock tests

Full practice tests before the real exam.

04

Streaks & reminders

Daily goals that keep students practising.

03The user

Designed around
one real person.

“I need at least 7 bands, and speaking is very difficult for me.”
A

Amanpreet, 22, Punjab

Commerce graduate applying for a Master’s in Canada

Goals

  • Score at least 7 in IELTS
  • Speak English with confidence
  • Practise mock tests before the exam

Frustrations

  • No one to practise speaking with
  • Writing tasks are hard
  • Confused by too many resources
04The work

Screens, flows and the
thinking between them.

The artifacts from the engagement: wireframes, journeys and the shipped interface.

Three Touchstone phones showing lessons01
Personalised IELTS preparation hub.
Touchstone IELTS dashboard with annotations02
Band-score card, practice sessions and mock tests.
Touchstone user flow chart03
User flow from onboarding to each module.
05Stack

Built to
be handed over.

The tools are a means, not the pitch. You get the repositories and the documentation.

Mobile

FlutterReact Native

Backend

Node.js

Data

FirebaseMongoDB

Design

Figma

Services in this build

Product designMobile appAI features
06Outcomes

What
changed.

After usability rounds and testing, Touchstone delivered structured learning, real-time feedback and easy access to practice in one app, helping students stay consistent and prepare for their study-abroad goals.

Figures from project material

3Learning levels
AISpeaking feedback
2Language tracks: English & French

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