The verdict in three sentences
On a 3G smartphone, every extra screen costs customers: one-page checkout consistently beats multi-step. In Kampala, MTN MoMo (about 55 % share) and Airtel Money are detectable by number prefix, and preloading the operator lifts conversion by 10 to 20 points. Removing mandatory account creation adds even more.
Why the single page wins on 3G
A three or four screen funnel multiplies reloads. On 3G, each screen takes 2 to 5 seconds to load; across four screens that is 8 to 20 seconds of cumulative latency during which the customer can leave. A single page loads once and lays out everything: address, operator, amount, pay button.
In Kampala, the number prefix already reveals the operator (MTN or Airtel). Preselect it, show the exact FCFA amount, and never ask for a password before payment.
| Removed step | 3G load time saved | Conversion gain |
|---|---|---|
| "Create account" screen | 3-5 s | +10 to 20 pts |
| Separate address screen | 2-4 s | +4 to 7 pts |
| Operator choice screen | 2-3 s | +5 to 8 pts |
| Isolated summary screen | 2-4 s | +2 to 4 pts |
Lomé: detect the operator by prefix
In Lomé, Moov Money and T-Money (Togocom) dominate, and the number prefix already identifies the operator. A single-page checkout that preloads the operator lifts conversion by 12 to 18 points versus a classic three-screen funnel — the same mechanics as Kampala.
| Configuration (Lomé) | Single-page conversion | Multi-step conversion |
|---|---|---|
| Mandatory account, manual operator | — | 44 % |
| Guest checkout, operator by prefix | 56 % | — |
| Guest + exact amount + 1-tap pay | 60 % | — |
| All + real-time status | 66 % | — |
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Mini case study
Kodjo sells sporting goods in Lomé, mostly browsed on 3G. His three-screen funnel converted at 44 %: out of 800 carts, 352 orders at 16,000 FCFA = 5,632,000 FCFA. Switching to a one-page checkout with preloaded operator and guest checkout, he reaches 60 %: 480 orders = 7,680,000 FCFA. A 2,048,000 FCFA monthly gain, purely from removing screens.
FAQ
Doesn't the single page become too long to scroll? Not if you keep only essentials: contact, address, preloaded operator, pay button. Three or four visible fields, no more.
How do you handle errors on one page? Validate in real time, field by field, without reloading, showing the error right under the relevant field.
Does guest checkout hurt retention? No: offer account creation after a successful payment, when the customer is already satisfied. Acceptance is far higher there.
What realistic gain should Kampala target? The observed order of magnitude is 10 to 20 points from removing the mandatory account, plus the single-page uplift itself.
Let's talk about your project. We rebuild your checkout as one page, designed for 3G and East/West African mobile money. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
