NG Sell is an Android marketplace application developed by NetGram Labs for local buying and selling. Users can create product listings, browse available products, view listing details, use location-based information, and receive application updates through push notifications.
NG Sell is a mobile marketplace app built for buying and selling products locally.
NG Sell follows a classified-marketplace model where users can create product listings for sale and other users can browse available listings and evaluate products based on the information provided.
The Android application is developed using React Native and Expo and includes product listings, free and paid advertisement options, location-based functionality, API integration, and push notifications.
The main focus of the project is to keep the buying and selling process simple while giving sellers different options for promoting their listings.
NG Sell is a marketplace application developed by NetGram Labs as part of its digital product ecosystem.
Users can create an account, add product information, provide the required listing details, and publish products for other users to browse.
The platform supports both free and paid listing options. Free listings provide an entry point for users, while additional paid listing options can be used according to the application's configured marketplace rules.
This gives the platform a basic monetization model while still allowing new users to start using the marketplace without immediately paying for listings.
| Property | Details |
|---|---|
| Project Name | NG Sell |
| Project Type | Buy & Sell Marketplace App |
| Platform | Android |
| Category | Marketplace / Classifieds |
| Framework | React Native |
| Development Platform | Expo |
| Status | In Development / Production |
| Main Focus | Local Product Buying & Selling |
The main purpose of NG Sell is to let users buy and sell products through the app.
Sellers can create product listings, while buyers can browse available products and find items they are interested in.
The overall concept follows the familiar classified-marketplace model but is implemented as its own platform under NetGram Labs.
Users can create listings for the products they want to sell.
A listing can contain the basic information required for someone to understand what is being offered.
The listing system is the main part of the marketplace because all buying activity starts from products published by sellers.
New users can publish a limited number of advertisements without paying.
Users can currently publish up to 5 free advertisements before additional paid listing options are required.
This gives users an opportunity to try the platform and list their products before moving to paid listings.
After the available free listing limit is reached, users can use paid listing options to publish additional advertisements.
The paid listing system provides a basic monetization layer while keeping the initial marketplace experience accessible to new users.
The pricing can be based on the type or category of product being listed.
Different products may have different listing requirements.
NG Sell is designed so that paid advertisement options can be associated with the product type or category.
For example:
Product Category
↓
Listing Option
↓
Applicable Price
↓
Publish ListingThis gives the platform flexibility to use different pricing structures instead of applying one fixed price to every product.
Location is an important part of a local marketplace.
NG Sell uses OpenStreetMap-based map functionality for location-related features within the application.
The map integration can be used to work with product locations and provide users with a better idea of where a listing is located.
The app also includes push notification functionality.
Notifications can be used to keep users informed about important activity related to the application.
This is particularly useful for a marketplace because users may not keep the app open continuously.
NG Sell is developed as an Android-focused marketplace application using React Native and Expo.
The application uses a shared JavaScript/TypeScript codebase while providing mobile-specific interfaces and functionality for browsing listings, creating advertisements, working with location features, and receiving notifications.
Expo provides EAS tools for building and distributing React Native applications, including Android builds.
The basic marketplace flow is:
User Login
↓
Browse Products
↓
Open Product
↓
Check Listing Details
↓
Contact / Purchase DecisionFor sellers:
Login
↓
Create Listing
↓
Add Product Details
↓
Select Product Type
↓
Free / Paid Ad Check
↓
Publish ListingThe free and paid listing system works around the user's available free-ad limit.
Create New Listing
↓
Check Free Listing Availability
↓
┌───────────────┐
│ Free Listing │
│ Available? │
└───────┬───────┘
Yes │ No
│
↓ │ ↓
Publish │ Paid Listing
Free Ad │ Option
│ ↓
│ Payment
│ ↓
└──→ PublishThis makes the advertisement system one of the important business parts of the application.
The interface is designed around the main actions users perform in a marketplace application.
The experience keeps product discovery, listing details, advertisement creation, location, and user actions accessible from the mobile interface.
The important parts of the experience are kept easy to reach:
The goal is not to make the app feel like a complicated e-commerce platform. It is more focused on the simple classified-marketplace experience of finding a product or putting something up for sale.
A marketplace needs to support both buyers and sellers. The application therefore needs separate flows for discovering products and creating listings while keeping the overall experience consistent.
The advertisement system needs to keep track of how many free ads a user has already used.
Once the free limit is reached, the application needs to move the user towards the appropriate paid listing option.
Location is an important part of local buying and selling.
The map implementation needed to work properly inside the React Native application while keeping the map experience usable on mobile devices.
Marketplace activity can happen even when the application is closed.
Push notifications provide a way to bring important updates back to the user without requiring them to keep checking the app manually.
The application was developed feature by feature around the main marketplace workflow.
The development process included:
NetGram Labs handled the development and implementation of the NG Sell Android application, including:
NG Sell provides a dedicated Android marketplace experience for browsing products, creating listings, and supporting local buying and selling workflows.
The application combines user-generated listings, configurable listing options, location-based functionality, API integration, and push notifications within a mobile marketplace interface.
Its modular application structure also provides room for additional marketplace features as the product evolves.
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