Interactive services on every phone in Kenya
No app to install. No data bundle needed. A USSD code puts menus, voting, balance checks, and registration flows on every handset in the country — including the kabambe in the village.
- Handset coverage
- 100%
- Handset coverage
- To go live (shared)
- Days
- To go live (shared)
- Session tracking
- Real-time
- Session tracking
What's included
From dialled code to finished session
Design the flow, test it, launch it, and measure it — all from one dashboard. Developers can take over the session entirely when they want to.
Dedicated codes
Your own *XYZ# across all networks — the strongest, most memorable presence USSD can give a brand.
Shared-code extensions
An extension like *657*01# on our shared code gets you live in days at a fraction of a dedicated code's cost.
Visual menu builder
Compose nested menus with headers, options, and responses — no code, no spec documents, no back-and-forth.
Built-in simulator
Dial your service from the browser exactly as a customer would. Catch dead ends before launch, not after.
Developer callback mode
Point your code at your own endpoint and drive the whole session from your system — we handle the operator plumbing.
Surveys & voting inside USSD
Route a code straight into a poll or questionnaire. Every answer is captured per session, ready to tally.
Session reports
See who dialled, what they chose, and where they dropped off — session by session, in real time.
Date windows & whitelists
Run a service only during the AGM week, or only for a specific list of numbers. Control is built in.
Automatic renewals
Monthly code and extension fees renew from your wallet automatically, so a missed invoice never takes you offline.
Menu builder
Design a service like you'd sketch it on a whiteboard
Menus are trees: a header, numbered options, and what happens next. Build exactly that, visually, then walk through it in the simulator until it feels right.
- Nested menus with unlimited depth
- Edit live services — changes apply instantly
- Simulator mirrors a real handset session
- Review-and-approve flow before anything goes public
Menu builder
Dial it in the built-in simulator before a single customer sees it.
Codes
Dedicated prestige or shared speed — your call
A dedicated code is your brand's own dialling address. A shared-code extension gets you the same capability in days, without operator paperwork. Many teams start shared and graduate.
- Dedicated *XYZ# on all Kenyan networks
- Shared extensions live within days
- Transparent monthly pricing, auto-renewed from your wallet
*XYZ#
DedicatedYour own service code, all networks. The strongest brand presence USSD offers.
*657*01#
Shared extensionYour extension on our shared code. Live in days, at a fraction of the cost.
Monthly renewals draw from your wallet automatically — no service interruptions.
Routing
One code, any destination
Your code isn't welded to one flow. Point it at a visual menu, a live survey, or your own API — and repoint it whenever the campaign changes.
- Switch destinations from the portal, instantly
- Run voting this month, a registration drive next
- Whitelists and date windows scope who can dial when
One code, many destinations
Point your code at a menu today and a voting survey tomorrow — switch destinations from the portal without touching the operator side.
Developers
Own the session from your own backend
In callback mode we forward every dial and every keypress to your endpoint and relay your response to the handset. Your logic, our operator integrations.
- Simple request/response webhook contract
- Session ID and full input trail on every hit
- Mix modes: menus for some options, callbacks for others
POST /ussd/callback
{ "sessionId": "…", "phone": "2547…",
"text": "1*2500" }"CON Confirm loan of KES 2,500?
1. Yes 2. No"How it works
Live in four steps
Pick your code
Choose a shared-code extension for speed or apply for a dedicated code for presence.
Build the flow
Compose menus visually, route to a survey, or point the code at your own API.
Test in the simulator
Dial the service from your browser and walk every branch before launch.
Go live & measure
Launch to real handsets and watch sessions, choices, and drop-offs in real time.
Use cases
What teams build with it
FAQ
Common questions
What's the difference between a dedicated code and a shared extension?+
A dedicated code (*XYZ#) is registered to you alone across all networks — maximum brand presence, longer setup. A shared extension (*657*01#) rides on our already-live shared code, so you can launch within days at a much lower monthly cost. The service you build behind either is identical.
Do my customers need internet or a smartphone?+
No — that's the point. USSD runs on the network signalling layer, so it works on every GSM handset ever sold in Kenya, with zero data and no app install.
Can I test my service before customers see it?+
Yes. The built-in simulator behaves exactly like a handset dialling your code — same menus, same inputs, same session flow — so you can walk every branch before going live.
Can my own system drive the USSD session?+
Yes. In callback mode we forward each dial and keypress to your endpoint and relay your response back to the phone. You keep your business logic; we keep the operator integrations.
How does billing work?+
Codes and extensions are billed monthly and renew automatically from your Mobile Sasa wallet. You'll see the renewal in your wallet history, and your service never lapses because someone missed an invoice.
Put your service one dial away
Start with a shared-code extension this week, or talk to us about a dedicated code. The menu builder and simulator are waiting in your dashboard.