Education · AI & ML
Ai Algorithms Visualization
com.rakai.aisim
Machine Learning, Deep Learning, NLP and Reinforcement Learning — explained, simulated and visualised.
A complete AI companion for students, developers and enthusiasts. Every concept comes with a detailed description, a live simulation, practical applications and a step-by-step guide that takes you from beginner to advanced.
Detailed descriptionsConcepts, algorithms and workflows broken down clearly.
Simulations & visualisationsWatch AI models run so the intuition sticks.
Practical applicationsLearn where each technique works — and where it doesn't.
Step-by-step guidesTutorials that scale from first principles to advanced use.
- Version
- 1.0.1
- Downloads
- 1,000+
- Updated
- Dec 11, 2025
- Released
- Dec 11, 2025
- Download size
- 37 MB
- Requires
- Android 7.0+
- In-app purchases
- BDT 420 – 700
- Content rating
- Rated 3+
Education · Computer Science
Data Structure and Algorithms
com.rak.dsa
Learn DSA visually — 100+ algorithms you can step through, one operation at a time.
Sorting, searching, graphs, dynamic programming, trees and more, each with interactive animations and Big-O analysis. Built for computer-science students, interview preparation and anyone who wants to understand the logic rather than memorise it.
Comprehensive DSA libraryArrays, stacks, queues, linked lists, trees, graphs, heaps.
100+ algorithm simulationsSorting, searching, pathfinding, dynamic programming.
Step-by-step visualisationsAnimated execution that makes complex ideas tractable.
Complexity analysisTime and space complexity in Big-O notation.
Interview & exam prepSharpen problem-solving for interviews and university exams.
- Version
- 2.5.0
- Downloads
- 1,000+
- Updated
- Oct 25, 2026
- Released
- Nov 23, 2025
- Download size
- 43 MB
- Requires
- Android 7.0+
- In-app purchases
- BDT 420 – 700
- Content rating
- Rated 3+
Education · Language
IELTS Band 9
com.mrkbil.ielts2m
Listening, Reading, Writing and Speaking — Band 9 resources, model answers and strategy in one place.
Topic-based practice for Speaking and Writing (Education, Technology, Environment, Work, Health, Culture and more), model Band 9 answers for every module, and proven strategies to improve speed, accuracy and confidence. Regularly refreshed with new cue cards, essays and mock tests.
All four modulesComprehensive Band 9 resources for every IELTS section.
Topic-based practiceSpeaking & Writing across the topics examiners actually use.
Model Band 9 answersPractice exercises with annotated top-band responses.
Proven strategiesTips to improve speed, accuracy and confidence.
Regular updatesFresh practice sets, cue cards, essays and mock tests.
- Version
- 4.0.0
- Downloads
- 1,000+
- Updated
- Aug 30, 2026
- Released
- Oct 12, 2025
- Download size
- 41 MB
- Requires
- Android 7.0+
- In-app purchases
- BDT 420
- Content rating
- Rated 3+
Education · STEM
Mathematics Formulas and Tools
com.rak.math_tools
An entire math lab in your pocket — formulas, calculators, graphs, converters, solvers and quizzes.
Built for students, teachers, engineers and enthusiasts. Look up a calculus identity, plot a function, solve a linear system, convert units or test yourself with riddles — fully offline, from middle school through undergraduate STEM.
Formula handbook30+ disciplines rendered in crisp LaTeX, with rules and examples.
Scientific & graphing calculatorAdvanced functions plus an interactive 2D grapher.
Multi-category unit converterLength, mass, temperature, pressure, data and more.
Step-by-step solversQuadratics, linear systems, triangles and matrices.
Quizzes & brain teasersMental math drills, riddles and exam practice modes.
- Version
- 1.0.0
- Downloads
- 5+
- Updated
- Oct 8, 2026
- Released
- Oct 7, 2026
- Download size
- 28 MB
- Requires
- Android 7.0+
- In-app purchases
- BDT 290 – 420
- Content rating
- Rated 3+
Finance · Personal Ledger
Money Track: Borrow & Lend
com.rak.money_track
Record it. Track it. Know who owes what.
A simple personal ledger for money shared with friends, family, coworkers or customers. Log loans with due dates, record partial payments, share receipts as image or PDF, and see who owes what — offline-first, with optional Premium cloud sync.
Lend & borrow recordsPerson, amount, due date, category, payment method, notes.
People & contactsPick from phone contacts and see each person's full history.
Partial paymentsOutstanding, partially paid, settled or overdue — calculated for you.
Receipts & ledgerShare receipts as image/PDF; filter by status, person or date.
AnalyticsTrends, settlement rates, top debtors and creditors, overdue totals.
- Version
- 1.0.0
- Downloads
- 100+
- Updated
- Sep 26, 2026
- Released
- Sep 1, 2026
- Download size
- 39 MB
- Requires
- Android 7.0+
- In-app purchases
- BDT 290 – 420
- Content rating
- Rated 3+
Finance · Budgeting
Income & Expense Tracker
com.rak.expense_track
Stop wondering where your money went — start deciding where it goes.
A clean, fast expense tracker with a one-tap logging notification, donut-chart category breakdowns, monthly budget alerts and professional PDF statements. Filter by day, week, month, year or a custom range, in light or dark mode, with any currency.
1-tap quick-log notificationAdd income or expenses straight from the notification shade.
Visual analyticsDonut charts and percentage breakdowns by category.
Smart monthly budgetingA live budget bar that warns before you overspend.
PDF reportsInflow, outflow, net cash flow and savings rate in one tap.
Multi-currency & themesCustom categories, any currency, light and dark mode.
- Version
- 1.0.0
- Downloads
- 10+
- Updated
- Oct 4, 2026
- Released
- Oct 4, 2026
- Download size
- 29 MB
- Requires
- Android 7.0+
- In-app purchases
- BDT 290 – 420
- Content rating
- Rated 3+
Productivity · Planner
Daily Task Flow
com.rakai.taskflow
A calm, distraction-free daily planner. No sign-in, no cloud, no ads.
Capture tasks in seconds, set deadlines with local expiry alerts, tag High / Medium / Low priority and move between Tasks, Done and Late. Swipe to delete with instant undo. Everything stays on your device — 100% private and offline.
Distraction-free planningA minimalist interface built for execution, not settings.
Deadlines & expiry alertsTimely local notifications the moment a task expires.
Priority colour codingHigh, Medium and Low at a glance.
Tasks · Done · LateDedicated views for what's next, finished and overdue.
Gestures & undoSwipe to delete, instant undo, multi-select batch actions.
- Version
- 1.0.0
- Downloads
- 1+
- Updated
- Oct 10, 2026
- Released
- Oct 9, 2026
- Download size
- 20 MB
- Requires
- Android 7.0+
- In-app purchases
- None
- Content rating
- Rated 3+