Overview
GrocerApp is Pakistan's leading online grocery service, delivering same-day across Lahore, Islamabad, Rawalpindi, and Faisalabad. Groceries are a brutal e-commerce category: thin margins, large baskets, daily price changes, and customers who will abandon a cart over a few seconds of friction.
AwaitSol was engaged to rebuild the customer-facing mobile app — the storefront through which essentially all of GrocerApp's revenue flows.
The Challenge
The app's growth had outrun its architecture. A large share of customers shop on entry-level Android devices over congested mobile networks, where heavy screens and chatty APIs translate directly into abandoned baskets. Catalog browsing felt slow, and checkout — the moment that matters most — was the slowest flow in the app.
Scale events made it worse. Promotions and peak evening hours produced traffic spikes that degraded the experience exactly when the most customers were watching. The business needed an app that got faster under pressure, not slower, and the rebuild had to happen without pausing a live, revenue-generating operation.
Our Approach
We started by instrumenting the existing app to find where sessions actually died: slow catalog loads on low-end devices, redundant network round-trips in the cart, and a checkout flow that demanded too many steps. Those findings, not assumptions, set the rebuild priorities.
The new app was built in Flutter from a single codebase for Android and iOS. Catalog data is aggressively cached and pre-fetched so browsing feels instant even on poor connections; images are sized for the device rather than the designer's monitor; and the checkout pipeline was redesigned around the minimum number of taps between basket and confirmed order.
Rollout was incremental — the new app shipped to a fraction of traffic first, with conversion and crash metrics compared side-by-side against the old app before each expansion. By the time it reached 100% of customers, the regression risk had already been retired.
What We Built
The rebuilt app treats speed as its core feature. Browsing, search, cart, and checkout are tuned for low-end hardware and unreliable networks, with graceful degradation instead of spinners when connectivity drops. Local payment options are integrated natively, and real-time order tracking keeps customers informed from confirmation to doorstep.
- Full Flutter rebuild of the customer app for Android and iOS
- Redesigned checkout flow with integrated local payment options
- Catalog browsing optimized for low-end devices and slow networks
- Real-time order tracking and delivery notifications
- Staged rollout with side-by-side conversion and stability metrics
Key Results
Checkout went from the app's weakest moment to its fastest, and the repeat-purchase lift showed up where it counts: customers who completed one smooth order came back for the next one. Peak shopping events became growth opportunities instead of operational emergencies.
Technology
Have a similar challenge?
Let's talk about what we can build together.
