GATE Exam Preparation Tracker Android App with Mock Test Analytics

The GATE Exam Preparation Tracker is an Android app (Kotlin, Jetpack Compose, Room) built for GATE aspirants who lose track of where their preparation actually stands. Most aspirants prepare from scattered notes, coaching PDFs and test-series portals, then discover their weak subjects only weeks before the exam — when little time remains to fix them. This project closes that loop: a syllabus tracker records every completed topic across 11 subjects and 65 topics (design target), every mock test is logged with score, accuracy and time-per-question, and per-subject analytics over the last 10 mocks (design target) surface exactly which subjects drag the total down. A spaced-repetition revision queue ranks completed topics by forgetting-curve gap, so revision always targets what is closest to being forgotten. Streaks and daily study targets keep the routine consistent, all offline-first in Room — no account, no cloud, no subscription. The result is one honest dashboard: what is done, what is weak, and what to revise today.

Preparation flows through the app in three stages: log, analyze, schedule. The aspirant logs two kinds of events — completed syllabus topics (tap a checkbox, timestamped) and mock-test attempts (test name, score out of total marks, accuracy percentage, minutes per question, weakest subject). The analyze stage aggregates the last 10 logged mocks (design target) into per-subject accuracy over attempted questions only, plots every score on a trend chart against a 65-mark target line, and tracks average time-per-question against a 2-minute goal. The schedule stage maintains the spaced-repetition queue: each completed topic has a last-revised date and a memory interval; the queue score is elapsed days minus interval, so the most overdue topic — the one closest to being forgotten — always ranks first. Marking a topic revised resets its last-revised date and doubles its interval, pushing it down the queue. The dashboard compresses the whole state into four numbers: day streak, target hours, syllabus percentage and average mock score.

1. The aspirant checks off completed topics in the syllabus tracker; each check is timestamped and stored in Room.
2. After every mock test, the aspirant logs the test name, score, accuracy, time-per-question and weakest subject through the log-mock form.
3. The analytics engine aggregates the last 10 logged mocks (design target) into per-subject accuracy over attempted questions.
4. The score-trend chart plots every mock against the 65-mark target line with the qualifying-zone band.
5. The revision queue scores each completed topic as (days since last revision − current interval) and ranks the largest gaps first.
6. Marking a topic revised resets its last-revised date and doubles its interval (SM-2 style), re-ordering the queue.
7. The dashboard combines streak, today's target hours, syllabus percentage and average mock score into one screen.

Tech stack:

• Kotlin
• Jetpack Compose · Material 3
• Room (SQLite) on-device database
• MPAndroidChart (score & accuracy charts)
• WorkManager (revision reminders)
• Kotlin Coroutines · Flow
• Navigation Compose
• Git

The app is organized around four capabilities that work as one loop. The syllabus tracker holds 11 subjects and 65 topics (design target) — General Aptitude, Engineering Mathematics and ten core GATE CS subjects — with tap-to-complete checkboxes, per-subject progress bars and topic search. The mock-test logger records every attempt with score, accuracy, time-per-question and weakest subject, and the analytics engine turns the last 10 mocks (design target) into a score-trend chart with a 65-mark target line plus per-subject accuracy bars that flag revision priorities in red. The spaced-repetition queue is the most distinctive mechanism: each completed topic carries a memory interval that doubles after every successful revision (SM-2 style), and the queue ranks topics by the gap between days since last revision and the current interval — the largest overdue gap sits on top. Study streaks and a daily hours target wrap the loop in routine.

• [Syllabus tracker — 11 subjects, 65 topics] Tap-to-complete topic checklists with per-subject progress bars, topic search and subject filters. Progress syncs live to the dashboard and feeds the revision queue. (Implemented)
• [Mock-test logging] Log every attempt with test name, score out of total marks, accuracy percentage, minutes per question and weakest subject. New entries update all charts instantly. (Implemented)
• [Score-trend analytics] A trend chart plots every logged mock against a 65-mark target line, with a qualifying-zone band, so score trajectory is visible at a glance. (Implemented)
• [Per-subject accuracy bars] Accuracy over attempted questions only, computed across the last 10 mocks (design target); the weakest subjects render in red as revision priorities. (Implemented)
• [Spaced-repetition revision queue] Completed topics are ranked by forgetting-curve gap (elapsed days since last revision minus current memory interval); marking a topic revised doubles its interval and re-orders the queue. (Implemented)
• [Study streaks & daily targets] A day streak counts consecutive days with at least one logged study session, and a daily hours target with a progress ring keeps the routine measurable. (Implemented)
• [Offline-first Room storage] Syllabus state, mock log and revision intervals persist in an on-device Room database — every screen works with no network. (Implemented)
• [PDF progress report] Optional: export a one-page summary (syllabus %, score trend, weakest subjects) for mentors or coaching review. (Optional customization, quoted separately)

• Complete Android source code (Kotlin, Jetpack Compose, Room)
• Room database schema with the seeded 11-subject / 65-topic GATE CS syllabus
• Analytics module (score trends, per-subject accuracy, time-per-question)
• Spaced-repetition revision scheduler with forgetting-curve queue logic
• Working interactive demo of the app UI
• Setup and build instructions
• Project report PDF (background, architecture, methodology, limitations)
• PPT presentation for final review
• Viva Q&A preparation document