Linkytrust built in
A marketplace and real-estate app in one, with a courier app, an admin console and a website. All of it built around one problem: buyers afraid to pay, and sellers afraid to ship.
- Client
- Linky, 2026
- What I did
- Android and iOS app, courier app, back end, admin console, website
- Payments
- Orange Money and MTN Mobile Money, card, cash on delivery
- Live
- linkygroup.com ↗
App in testing on Android
Trust is the product
Buying online in Guinea starts with a question of trust. The buyer is afraid to pay and receive nothing, and the seller is afraid to ship and never be paid. Linky had to answer that before anything else, in one app that also lists homes to rent or buy.
It had to run on 3G, in three languages, with the ways people already pay: Orange Money, MTN and cash. And it had to let family abroad pay for an order back home.
One account, three roles
Buyers, sellers and real-estate agents sign up once, choose what they do, and can change it later. A Discover feed mixes products and homes to swipe through, and sellers follow their sales and withdraw to Orange Money or MTN whenever they like.
The seller is paid when it arrives
- 1
Escrow, kept as a ledger
Mobile Money can't split one payment between a seller and a platform, so the app holds every payment and keeps its own books. The seller is paid once the buyer confirms delivery, the commission is taken at release, and an order nobody confirms is refunded on its own.
- 2
Only verified sellers
Sellers scan an ID and take a selfie to earn a Verified seller badge, and the shops tab lists verified shops only. A buyer always knows who they're paying.
- 3
Delivery you can prove
At the door, the courier scans a QR code on the buyer's phone. Until then, the buyer follows the courier live on the map, in a courier app of its own.
- 4
A wallet that needs no licence
The wallet shows balances and withdrawals, but nobody can top it up or send money to someone else. That one choice keeps Linky clear of e-money licensing.
- 5
Homes, rented from the app
Homes to rent or buy, with a price you can negotiate. For a rental, the contract is signed in the app, and the rent and deposit are held until move-in.
- 6
Made for 3G, in three languages
French, English and Spanish, with 2,125 strings in each, and a data-saver mode that holds videos back on a slow connection.
Five reasons, one download
linkygroup.com speaks French, like Linky's customers. It makes the case in five reasons, from verified sellers to escrow, shows the Discover feed in motion, and keeps the download one tap away.
Visit linkygroup.com ↗Two apps, one back end
Linky and its courier app are built with Expo and React Native, the website and the admin console with Next.js, all on one Supabase back end. In five months: 99 app screens, 14 courier screens, 11 admin pages, 146 serverless functions and 152 database migrations.
- Expo
- React Native
- Next.js
- TypeScript
- Supabase
- PostgreSQL
- Orange Money
- MTN Mobile Money
- Stripe
- Twilio
- Mapbox