The verdict in three sentences
A SaaS billed via MTN MoMo or Flutterwave cannot rely on card-based automatic debit: you must rebuild every brick of the subscription cycle around a user-pushed payment. The three MRR leaks are trial-to-paid conversion (4 to 8 %), renewal failure (18 %) and the absence of dunning. Well architected, mobile money billing recovers 25 to 35 % of failed renewals and makes MRR predictable from 2026.
Tiers and MRR
A typical African SMB SaaS offers a free trial, a Starter tier and a Pro tier. MRR builds tier by tier, with a realistic upward conversion.
| Tier | Monthly price | Conversion from trial | MRR for 500 trials |
|---|---|---|---|
| Free / trial | 0 FCFA | 100 % | 0 FCFA |
| Starter | 9,900 FCFA | 5 % (25 customers) | 247,500 FCFA |
| Pro | 24,900 FCFA | 2 % (10 customers) | 249,000 FCFA |
| Total paid | — | 7 % (35 customers) | 496,500 FCFA |
At 7 % conversion on 500 trials, this SaaS generates nearly 500,000 FCFA of MRR from the first full month.
The billing lifecycle
Each stage of the cycle has its measured stake and its technical brick. A no-card trial raises signup volume but lowers quality; dunning catches the rest.
| Stage | 2026 stake | Key figure | Technical brick |
|---|---|---|---|
| Free trial | Volume vs quality | Conversion 4-8 % | Usage limit + J-2 end-of-trial reminder |
| Upgrade Starter -> Pro | MRR expansion | 8-12 % of customers/year | In-app notice + pro-rata |
| Renewal | Continuity | Failure 18 % | Push + SMS reminder |
| Dunning | Recovery | +25 to 35 % | 7-day sequence |
| PDF invoice | Compliance | 100 % | Auto-generation + email |
The PDF invoice is not optional: B2B customers need it for their accounting, which reduces cancellation requests.
Mini case study
Ibrahim publishes point-of-sale software in Dakar: 500 trials/month, 7 % conversion, i.e. 35 new paying customers at an average ticket of 14,190 FCFA. His added MRR is therefore ~496,500 FCFA/month. Without dunning he loses 18 % of renewals, i.e. ~89,000 FCFA/month. He deploys a 7-day reminder sequence that recovers 30 %, i.e. ~27,000 FCFA/month saved for a reminder cost under 5,000 FCFA. Over twelve months, that is more than 320,000 FCFA of preserved MRR.
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FAQ
Can you run a SaaS without bank cards in Africa?
Yes, it is even the norm: MTN MoMo, Flutterwave and aggregators cover most payments. You just have to rebuild the trial, renewal and dunning around a PIN-validated payment each cycle.
What trial-to-paid conversion should I target?
A realistic 2026 order of magnitude is 4 to 8 % for a no-card trial. A J-2 reminder before the trial ends can add 1 to 2 points of conversion.
How do I handle the Starter to Pro upgrade?
Offer the upgrade in-app with pro-rata calculation and immediate mobile money payment. Expect 8 to 12 % of customers to move up over a year.
Is the PDF invoice mandatory?
It is not always legally required, but B2B customers demand it for their accounting. Automatic generation reduces friction and cancellation requests.
How much does a good dunning sequence recover?
A 7-day sequence (push + SMS + WhatsApp) generally recovers 25 to 35 % of failed renewals, turning an 18 % failure into a much smaller net loss.
Let's talk about your project. We design your full SaaS billing on MTN MoMo and Flutterwave, trial, upgrade and dunning included. 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.
