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Chapter 01 · Muslim companion product

Arah

MVP shipped · Sprints 1–8

A prayer-schedule, offline Qur'an, and AI insights companion built as an Expo + Express monorepo with honest MVP scope and a live API deployment.

Source: arah/CLAUDE.md
Arah home — prayer schedule companion
  • 8MVP sprints shipped to main
  • 6product screens in the playstore set
  • 1public API at api.arah.arimu.dev

Product flow

Daily Muslim routines in one mobile shell.

Step 01

Prayer schedule home

Location-aware adhan times, countdown, and daily schedule cards anchor the first tab experience.

Timezone-aware quota and schedule endpoints stay server-validated; clients send locale headers.

Step 02

Offline Qur'an

114 surahs and 6,236 verses seed into on-device SQLite with search, bookmarks, and last-read resume.

Bundled dataset ships client-side; bookmark sync reconciles against the cloud on login.

Step 03

AI insights chat

Quota-aware coaching chat uses DeepSeek with honest remaining-quota feedback in the composer.

POST /api/v1/ai/chat enforces rate limits and refunds quota on provider failure.

Step 04

Qibla & notifications

Magnetometer-backed qibla bearing pairs with local prayer notifications for repeat daily moments.

Prayer notification scheduling stays on-device; server does not fabricate location trust.

Step 05

Murottal, dzikir, tasbih

Downloadable recitation audio, morning/evening adhkar counters, and haptic tasbih targets extend retention loops.

Audio files cache under the app sandbox; no fake store-ranking or download-count claims.

Step 06

Widgets & zakat

Home-screen prayer widgets and a zakat calculator extend the companion beyond the five primary tabs.

Widget timelines refresh from on-device schedule caches; zakat math stays client-side with honest formula notes.

Step 07

Auth & cloud sync

Email register/login with SecureStore JWT and bookmark sync against the live API deployment.

https://api.arah.arimu.dev serves auth and sync; deletion sync replaces the full active bookmark set.

Arah home prayer schedule
Arah offline Qur'an
Arah AI chat
Arah home screen widget
Arah qibla compass
Arah zakat calculator

Stack

Monorepo boundaries.

Mobile

  • Expo
  • React Native
  • React Navigation
  • expo-sqlite
  • expo-av
  • Zustand
  • TanStack Query

Backend

  • Node.js
  • Express
  • TypeScript
  • Prisma
  • PostgreSQL
  • bcrypt
  • JWT
  • rate limiting

Shared

  • NPM workspaces
  • packages/shared-types
  • timezone headers
  • quota contracts

Integrations

  • DeepSeek API
  • expo-location
  • expo-notifications
  • SecureStore

Honest scope

No invented achievements.

  • Widget and store-distribution polish remain follow-up scope after the Sprint 1–8 code merge.
  • Physical-device QA for qibla accuracy and notification timing is documented as an open gate.
  • No invented user counts, store rankings, or unshipped feature claims appear on this page.

Evidence trail

Every claim points to a real artifact.

  1. Live APIhttps://api.arah.arimu.dev
  2. Project statusarah/CLAUDE.md
  3. Documentation indexarah/docs/INDEX.md
  4. MVP PRDarah/docs/product-requirements/2026-07-11-v01-arah-mvp-prd.md
Source: https://api.arah.arimu.dev