Mobi Trash Store App

Mobi Trash Store is a second-hand mobile marketplace aimed squarely at users in Nepal. The home screen opens with a vibrant green gradient header, a recycling-symbol logo, and a search bar, with the bottom navigation offering five tabs: Home, Categories, Sell, Cart, and Profile. The Sell tab is deliberately highlighted with a green circle to draw attention to the app's core proposition — selling a used device for instant cash.

Buying Side: Browse, Detail, and Checkout

The Shop by Category screen lays out a 3×4 grid covering Android phones, iPhone covers, chargers, data cables, earphones, keyboards, mice, neckbands, pre-owned laptops, and even smoking accessories. Individual product pages show multiple image thumbnails, current and struck-through original prices in Nepali Rupees, stock-level badges, and a delivery estimate tied to Kathmandu. A purple Add to Cart button and a larger golden-yellow Buy Now button complete the purchase flow. The app also includes a built-in EMI calculator with adjustable sliders for loan amount (NPR 5K–5L+), interest rate (1–30%), and tenure (1–60 months), paired with a yearly principal/interest breakdown table.

Selling Side: Six Steps to a Quote

Tapping Sell launches a guided sequence: Brand → Model → Specs → Condition → Verify → Quote. Supported brands at the brand-selection step include Apple, Samsung, Vivo, Xiaomi, OPPO, and Huawei. After an OTP verification sent to the user's email, the final screen presents an offer card — for example, NPR 68,800 for an Apple iPhone 14 Pro Max 256 GB — with a seven-day price lock. The user can accept or decline. Payment is advertised as guaranteed within two hours, with free doorstep pickup and safe data wipe included.

Accessibility and Usability Gaps

The app's documentation flags several real concerns. Status badges like IN STOCK and SELLING OUT FAST rely on color alone, with no text alternative for users who cannot distinguish green from orange. The EMI calculator's sliders and the quantity +/− buttons have touch targets smaller than the recommended 44px minimum, creating friction for users with motor impairments. The six-step sell flow lacks a progress-save mechanism, meaning an interrupted session likely restarts from scratch. These are not minor polish issues — they affect a core workflow.

The category grid is wider than expected for a phone-resale app. Alongside second-hand handsets, the shop lists gaming keyboards, computer mice, and smoking accessories — a breadth that feels slightly unfocused compared to the tight "Turn Trash Into Cash" pitch on the home screen.

Visual Identity and Feel

• Dominant vibrant green across all headers, echoed in icon accents and active navigation states
• White content cards with generous white space create clean visual separation
• The Instant Offer screen uses colorful confetti animation and scattered brand logos for a celebratory moment
• Profile page includes a loyalty point badge (e.g., 1315 POINTS in golden yellow) and fingerprint login setup
• Consistent hierarchical text structure across all eight documented screens