Kalaam

A Quran vocabulary app that uses spaced repetition to teach Quranic Arabic, with daily challenges, leaderboards, and social features.

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Quran Learning App

Kalaam

Kalaam helps users learn Quranic Arabic vocabulary through a spaced repetition learning engine, paired with daily vocabulary and grammar challenges, leaderboards, and social features that keep learners engaged over time. I've been part of the core team for 3 years, helping grow the app from 10,000 to over 300,000 users.

Audio recitation with translation support

Bookmarks and reading history

Daily progress tracking

Project Overview

Kalaam helps users learn Quranic Arabic vocabulary through a spaced repetition learning engine, paired with daily vocabulary and grammar challenges, leaderboards, and social features that keep learners engaged over time. I've been part of the core team for 3 years, helping grow the app from 10,000 to over 300,000 users.

The build had to combine product clarity, technical reliability, and a release-ready mobile experience.

Challenge

What needed to be solved to make the product launch-ready.

Design offline-friendly audio and reading flows for everyday use.
Keep the app stable while supporting large content libraries and progress tracking.
Prepare a subscription-ready mobile foundation that could evolve after launch.

Solution

How the product and engineering decisions were shaped.

Built smooth, performant UI for the spaced repetition engine, daily challenges, and leaderboard screens within a modular React Native architecture.
Developed Firebase Cloud Functions to power streaks, leaderboard updates, and progress sync on the backend.
Optimized navigation, caching, and content flows for repeat sessions.

Key Features

The capabilities that mattered most in the final build.

Audio recitation with translation support

Bookmarks and reading history

Daily progress tracking

Search and structured browsing

Dark and light reading modes

Subscription-ready content model

Spaced repetition learning engine

Localized into 80+ languages, including Urdu, Bengali, and Tamil

Daily vocabulary and grammar challenges

Leaderboards and social engagement features

Results

Signals that the product foundation was doing its job.

4.8★ on the App Store, 4.7★ on Google Play

App ratings

100,000+ installs on Android

Downloads

Grew from 10K to 300K+ users over 3 years

User growth

Firebase-backed sync across 80+ languages

Technical base

Screens

Placeholder gallery for the main product flows.

These panels can use uploaded product screenshots or simple placeholders while final imagery is still being prepared.

Recitation dashboard

Reading session

Bookmarking flow

Progress overview

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Product strategy, implementation, launch support.

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