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Case Study / EdTech
Making PTE preparation more focused with AI-powered practice.
EdKnot brings mock tests, question-level practice, AI-assisted scoring, and performance insights into one learning experience — built for PTE candidates who want to prepare more effectively.
- 21k+
- practice questions
- 41
- question types
- 4
- language skills
- Client
- EdKnot
- Industry
- Education Technology
- Platform
- Web Application
- Product
- PTE Preparation Platform
- Live at
- edknot.com
From repeated mock tests to more purposeful practice.
PTE candidates need more than mock tests and section scores. EdKnot brings targeted practice, AI scoring feedback, and performance review into one coherent preparation experience.
Candidates typically assemble preparation from multiple sources — with no single view of progress and no clear connection between test results and what to practise next.
Build a web platform where mock tests, question-level practice, and AI scoring work together — so every result tells a candidate what to do next, not just how they performed.
Key capabilities
- Question practice — Task-based navigation across 41 PTE question types
- AI scoring — Practice scoring and feedback on speaking and writing responses
- Mock testing — Full-length structured assessment experience
- Performance review — Results that guide follow-up practice decisions
- Skill coverage — Speaking, writing, reading, and listening modules
- Free access — One complete scored mock for new learners
The challenge
Test scores show the result. Learners still need to know what to improve.
PTE preparation requires more than sitting through mock tests and reviewing a total score. Candidates need to understand which task types cost them points, practise those specifically, and track whether targeted work is actually moving the result.
Broad scores obscure specific weaknesses
Section-level scores tell candidates where they landed — they don't identify which task types are pulling the total down or what to practise next.
Mock tests without targeted follow-through
Completing a full mock test is valuable, but repeating the same format without targeted practice between attempts produces diminishing returns.
Fragmented preparation tools
Candidates assemble preparation from multiple sources. Each context switch creates friction and makes progress harder to track over time.
Scoring feedback that explains rather than just labels
Knowing a response scored 60 is less useful than understanding which elements of the response brought the estimate down.
The product experience
A connected practice experience, from first attempt to focused improvement.
01
Question-Level Practice
A question bank covering all 22 PTE Academic / UKVI and 19 PTE Core question types — 21,000+ items in total.
- Navigate by task type across speaking, writing, reading, and listening.
- Work through individual question prompts with timed response windows.
- Review completed attempts before moving to the next question.
- Return to specific task types identified as weaker from mock results.
Question-bank interface — task-based navigation with timed response windows across all 41 question types.
Scoring view — response-level feedback that helps candidates understand what to improve. Scores are practice estimates, not official PTE results.
02
AI-Assisted Scoring
Practice scoring and response-level feedback on speaking and writing submissions.
- Receive a practice score estimate after speaking and writing task submissions.
- Review which response elements influenced the practice score.
- Identify recurring patterns across multiple attempts at the same task type.
- Prioritise which areas to work on before the next full mock.
Practice scores are estimates to support preparation — not official PTE Academic or PTE Core scores.
03
Full Mock Test Experience
Structured, timed assessments following the PTE question sequence, with post-test performance review.
- Complete a timed, full-length test in the PTE question sequence.
- Review performance across all four language skills after the assessment.
- See which task types performed strongest and where to focus next.
- Combine mock results with targeted question-bank practice in subsequent sessions.
Mock test performance review — post-assessment breakdown across speaking, writing, reading, and listening.
Engineering
Engineering the experience behind every practice session.
Building a PTE preparation platform means solving a set of engineering problems that repeat consistently across question types, sessions, and candidates — each requiring careful design to feel reliable and purposeful.
Question type variety
PTE covers 41 distinct question types across four language skills, each with a different interaction model — timed recordings, written inputs, drag-and-drop ordering, multiple-select responses. Each type requires its own practice interface and response handling.
Timed practice workflows
Speaking and writing tasks have specific time constraints that affect how responses are captured and reviewed. Practice sessions need to reflect those constraints accurately to prepare candidates for the real test experience.
Assessment and review structure
A full mock test spans all four skills with sequenced question types. The platform needs to manage test state reliably and produce a consistent performance review that candidates can interpret and act on.
Responsive practice interfaces
Candidates access the platform across different devices and screen sizes. Practice interfaces — including response input, audio playback for listening tasks, and results review — need to remain usable regardless of where a session happens.
Scoring feedback presentation
Communicating practice scores and response feedback clearly matters as much as computing them. The interface needs to distinguish practice estimates from official scores and present feedback in a way that supports improvement rather than just recording a number.
Progress continuity
Candidates return to the platform across multiple sessions. The experience needs to support returning to specific question types, reviewing prior attempts, and building on previous mock results — not starting fresh each time.
Product capabilities
One platform. A more complete preparation workflow.
The following are published product capabilities sourced from EdKnot's public platform — they describe what the product offers, not engagement outcomes.
21,000+
Practice questions
A large question bank across PTE Academic, UKVI, and PTE Core formats. Candidates can practise individual question types without running short on material.
22
PTE Academic / UKVI types
Complete coverage of the PTE Academic and UKVI question type inventory, across speaking, writing, reading, and listening.
19
PTE Core types
Full coverage of PTE Core question types, supporting candidates preparing for Canadian immigration and other PTE Core pathways.
1
Free scored mock
New learners receive one complete, scored mock test to experience the full platform before committing to a subscription.
Product value
Helping learners turn results into their next step.
These are observable product qualities based on EdKnot's public platform — not engagement outcomes or claimed conversion metrics. We describe what the product does, not results we cannot verify.
A connected preparation experience
Practice questions, mock tests, and scoring feedback share the same platform. Results from one session inform the next without candidates switching between tools or manually tracking their own progress.
Feedback that supports a next step
Scoring estimates on speaking and writing responses give candidates something to act on — not just a number to compare with a target, but an indication of where the response fell short and what to work on next.
Support for different preparation routes
Candidates preparing for PTE Academic, UKVI, or PTE Core can work through the question types relevant to their specific format. The platform covers all three without requiring a different preparation tool for each.
Independent preparation without a tutor
The platform is designed for self-directed learners. Timed practice, mock tests, and performance review give candidates enough structure to prepare independently — while leaving room for those working alongside a coach to use the same tools.
EdKnot Guides — method, templates, and worked examples for each question type across speaking and writing.
Why choose CodexSmith
Choosing a technology partner usually comes down to trust in their judgment as much as their technical ability. Here's what that looks like in practice.
Senior-led delivery
You work with engineers who stay involved throughout the engagement, supported by a technical lead accountable for quality.
Transparent, milestone-based progress
You review working software as it progresses, with clear documentation of what has been built and what is still in progress.
A practical handover
Documentation, tests and handover are part of the engagement, so your team can operate and extend what we build.
Why these services work together
Many projects need more than one service. A SaaS platform may need software development and cloud delivery, and AI features only where there is a clear business case. Because these areas sit inside one team, you do not have to re-explain your product each time the scope shifts.
It also keeps recommendations grounded in what is feasible to build and maintain.
AI and automation
AI and workflow automation, including retrieval-based knowledge search, tested against representative examples.
Product engineering
Custom software, web applications and mobile apps, from initial architecture through launch.
Integration and data
System integration, data modeling and analytics, so teams work from consistent information.
Cloud, design and support
Cloud and DevOps, product UI/UX design, and separately scoped ongoing support after handover.
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