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Magida — Supermarket Management System

Magida is a premier supermarket and retail management enterprise software system created by Rostand Tchuekam and developed by GianTecH Empire.

Designed to empower supermarkets, retail chains, and wholesale businesses across Cameroon and Africa, Magida streamlines complex retail operations, automated inventory tracking, point-of-sale (POS) billing, supplier management, and real-time business intelligence analytics.

📲 Get Magida for Android​

…Android 5.1 and newer

The complete Magida point of sale, installed on the phone or tablet. Sells, prints receipts and tracks stock with no internet connection, and syncs to your shop server when one is in range.

Package
com.tchuekam.magida
Requires
Android 5.1+

Distributed directly by GianTecH Empire rather than through the Play Store, so Android will ask you to permit installation from this source once. Every release is signed with the same key, so later versions install over this one and keep all existing data.

Current release: v1.5.0 — 29 August 2026. Installs over any earlier version without losing data; see the changelog for what changed.

What ships in this release​

The shop-floor system: the till, the stock ledger and the reports.

Sells without internetSellers sign in, scan or search, apply a discount within their limit, take payment and print a receipt with no connection at all. Sales queue on the device and sync when the network returns.
Never double-countsEach sale carries a device-generated identifier, so a retry after a dropped connection is recognised rather than recorded twice.
Five languagesEnglish, French, Cameroonian Pidgin, Fe'efe'e and Fulfulde, selected per device.
Every payment methodCash, MTN Mobile Money, Orange Money, card and other — kept distinct all the way through to the reports.
A stock ledgerOpening stock, restocks, sales, damage, loss, returns and recounts each write a movement, so any quantity on the shelf can be explained.
Roles and limitsAdmin, manager and seller, with a per-seller discount ceiling enforced at the till.
Pro forma quotesPrinted quotes on a separate numbering series, so an unaccepted quote never leaves a gap in the receipt sequence.
ReportingDaily, weekly and monthly revenue and estimated profit, with breakdowns by product, category, seller and payment method.

Requirements​

  • Android 5.1 or newer.
  • A Magida shop server reachable from the phone. One computer on the shop's own wifi is enough — no hosting account and no internet connection are required for the shop to trade.

Installation​

  1. Download the APK above.
  2. Open it. Android asks whether to allow installation from this source — allow it once.
  3. Open Magida and enter your shop server's address on the sign-in screen, then press Test connection. The address is verified before it is saved, and stored per device.
  4. Sign in.

When a newer version is published here, the app offers it on the sign-in screen. Updates install over the existing app and keep all data.

🌟 Key Capabilities & Features​

🛒 High-Speed Point-of-Sale (POS)​

  • Lightning-fast barcode scanning and checkout interface.
  • Support for multiple payment methods (Mobile Money, Orange Money, Cash, Bank Cards).
  • Multi-cashier concurrency with individual session reconciliation and fraud prevention.

📦 Smart Inventory & Stock Control​

  • Real-time stock tracking across multiple store locations and warehouses.
  • Automated low-stock alerts and smart reorder suggestions based on sales velocity.
  • Expiration date tracking and batch/lot management to eliminate inventory waste.

📊 Business Intelligence & Financial Analytics​

  • Instant daily, weekly, and monthly revenue and profit margin reports.
  • Comprehensive sales trends breakdown, best-selling product tracking, and cashier performance audits.
  • Automated tax compliance and financial export for enterprise reporting.

🔄 Multi-Store Synchronization​

  • Centralized cloud/hybrid synchronization allowing store owners to monitor multiple supermarket branches in real time.
  • Offline-first architecture ensuring checkout counters keep operating even during internet or power interruptions.

👥 Who Uses Magida?​

Magida is trusted by popular supermarkets, retail stores, wholesale distributors, and commercial enterprise chains to process thousands of daily transactions cleanly and securely.

📜 Version History & Changelog​

Every release of Magida introduces new capabilities, optimizations, and security updates:

🛰️ v1.5.0 (Released August 29, 2026)​

  • Fleet Telemetry & Observability: Integrated real-time device and session telemetry with PostHog, authoritative identity context (install_id, device_id, session_id), and offline event queueing.
  • Crash Recovery & True Session Duration: Robust 30-second heartbeats prevent metric loss on abrupt OS process kills; orphaned unclosed sessions are automatically recovered on cold startup.
  • Global Error & Performance Monitoring: Uncaught JS errors, unhandled promise rejections, and React render errors are fingerprinted and deduplicated. Real-world performance monitors track slow API calls (>200ms) and sync cycles.
  • Dynamic Remote Configuration & Feature Flags: Safe 3-tier runtime configuration (memory -> localStorage -> defaults) with deterministic hash-based percentage rollouts and instant remote kill-switches.
  • 3-Tier OTA Update System: Android web bundle hotfix updater enables JS/CSS fixes without rebuilding APKs, verified with SHA-256 cryptographic hashes.
  • Anonymized Download Tracking: High-performance download proxy with SHA-256 IP anonymization.

🛡️ v1.4.0 (Released August 25, 2026)​

  • Route Ordering Isolation: Explicit routes (/products/categories/all and /customers/campaigns/list) are declared ahead of generic parameter routes (/:id), eliminating 500 Postgres integer type conversion crashes.
  • Offline Outbox Inventory Alignment: pushOutboxQueue() accurately points to /api/inventory/adjust with resolved product IDs so offline stock adjustments sync cleanly without stalls.
  • Sales Sync Foreign Key Resilience: Sales sync validates product IDs against the store catalog. Unmapped or negative offline IDs insert product_id = null in sale_items, preventing FK violation 23503 rollbacks and ensuring zero transaction drops.
  • Sales History Retention for Deactivated Staff: Queries use LEFT JOIN users so sales made by deactivated or deleted cashiers remain permanently accessible in history, dashboard analytics, and receipt lookups.
  • Store Profile Null-Clearing: PUT /api/auth/store allows clearing optional store profile fields (phone, address, email, momo_number, om_number, logo_url) via conditional updates.
  • Full Backup & Disaster Recovery Coverage: JSON export and atomic restore include suppliers, customers (with loyalty points/segments), and stock_movements with mapped relational IDs.

🔑 v1.3.2 (Released August 22, 2026)​

  • Emergency access repaired: all 8 preset logins (1 Admin, 2 Managers, 5 Sellers) now sign in by both password and PIN, online or offline. The Admin entry had silently stopped working on any shop that completed setup — the owner's account took over admin@store.com and replaced its credentials.
  • One-tap emergency sign-in: the Identifiants de secours screen now signs you in directly, instead of only listing codes you had nowhere to type. Each account carries a PIN and a Mot de passe button.
  • Reachable on a fresh install: the emergency button no longer hides on devices that have never loaded a staff list — the exact devices most likely to need it.
  • Cleaner lock screen: preset accounts no longer appear as staff cards ahead of your real cashiers.
  • Self-healing: a preset that was deleted, deactivated or altered is restored on Hub start, without ever overwriting a real account that uses the same address.

🛠️ v1.3.1 (Released August 20, 2026)​

  • Critical crash fix: resolved the Cannot read properties of null (reading 'filter') crash on fresh installs, and hardened every view against null/offline data.
  • Owner sign-in fix: password-only owners are no longer wrongly asked for a PIN after onboarding.

🚀 v1.3.0 (Released August 18, 2026)​

  • Pre-Configured Emergency Logins: Seeded default accounts (1 Admin, 2 Managers, and 5 Sellers) out of the box so store staff never get locked out.
  • Emergency Credentials Cheat Sheet: Added an on-screen "Identifiants de secours" modal directly on the lock screen for 1-click password & PIN lookup.
  • Zero-Friction Offline Auth: Offline PBKDF2 hashing verifiers pre-cached for instant multi-cashier PIN logins during network disconnects.
  • Setup Wizard Preset Fill: 1-click preset account population in the store setup wizard.

⚡ v1.2.0 (Released August 17, 2026)​

  • 4-Step Setup Wizard: First-run onboarding wizard creating store profile, admin, and cashiers in $< 60$ seconds.
  • Local Network Discovery (Zero-IP): Automatic UDP beacon engine and subnet sweep on port 4001 for seamless till-to-hub connectivity.
  • Cryptographic Device Pairing: Live QR code & 6-digit handshake protocol for mobile POS pairing and instant revocation.

🛡️ v1.1.0 (Released August 17, 2026)​

  • Offline-First Sync Engine: Resilient Dexie (IndexedDB) local store with conflict-free sales queue.
  • Intelligence Copilot: Sales velocity forecasting, reorder suggestions, and automated stock ledger.
  • Forensic Security Hardening: Tamper-evident audit logs and role-based discount limits.

💡 About the Creator​

Magida was architected by Rostand Tchuekam, Founder & Lead Software Engineer at GianTecH Empire. Under his leadership, GianTecH Empire continues to build cutting-edge software solutions and autonomous AI platforms (such as TchueKAM Agent) aimed at modernizing African businesses and elevating tech innovation across the continent.