The verdict in three sentences
A one-off sale generates revenue only once, whereas a subscription turns the same customer into predictable recurring revenue and multiplies LTV by 3 to 5. But not everything fits a subscription: only consumables bought regularly qualify. With a 10-15 % engagement discount, CAC pays back in about 4 months — after which every month is pure gain.
One-time purchase vs subscription
The one-time payment is simple but fragile: you must win the customer back on every sale. Subscription flips the load: you acquire once, you collect for several months. The table below compares the two models on the same product.
| Criterion | One-time purchase | Subscription |
|---|---|---|
| Revenue per customer | 1 sale | 3-5 sales (LTV x3-5) |
| Predictability (MRR) | None | High |
| Re-acquisition cost | Every sale | Once |
| Discount granted | 0 % | 10-15 % to engage |
| CAC payback | Uncertain | ~4 months |
| Risk | Sales volatility | Cannibalization to watch |
Which products to put on subscription
Any product rebought at regular intervals is a good candidate: coffee, cosmetics, supplements, cleaning products, content. Conversely, a rare purchase (appliance, furniture) does not belong on subscription. Here is the LTV impact, as a 2026 order of magnitude.
| Product | Unit price | Frequency | One-time LTV | Subscription LTV (12 mo, -12 %) |
|---|---|---|---|---|
| Coffee beans | 6,000 FCFA | Monthly | 6,000 FCFA | ~63,000 FCFA |
| Cosmetics | 12,000 FCFA | Monthly | 12,000 FCFA | ~127,000 FCFA |
| Health supplement | 15,000 FCFA | Monthly | 15,000 FCFA | ~158,000 FCFA |
| Cleaning product | 4,000 FCFA | Monthly | 4,000 FCFA | ~42,000 FCFA |
| Appliance | 90,000 FCFA | Rare | 90,000 FCFA | Not suitable |
Mini case study
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Binta sells roasted coffee beans in Dakar, 6,000 FCFA per monthly bag, one-time purchase. Her CAC is 8,000 FCFA per customer acquired via social media. As a one-off, a customer often brought a single sale: a net loss on acquisition. She launches a subscription plan at -12 % (5,280 FCFA/month) with mobile money reminders. A subscriber lasts on average 12 months: LTV of about 63,000 FCFA versus 6,000 FCFA before. The 8,000 FCFA CAC is paid back by the second month, and the rest is recurring margin.
FAQ
Which products fit a subscription? Consumables rebought regularly: coffee, cosmetics, supplements, cleaning, content. A product bought once every five years has no subscription value — rebuy frequency is the decisive criterion.
What discount to offer to engage? A 10-15 % discount is usually enough to move a one-off buyer to a subscription without destroying margin. Beyond that, you pay more for the commitment than it returns.
How fast does CAC pay back? As an order of magnitude, a typical CAC is recovered in about 4 months of subscription, often less on high-margin baskets. Beyond that, the customer is pure recurring gain.
What is the risk to watch? Cannibalization: customers who would have paid full price migrate to the discounted subscription. You watch it by reserving the discount for new commitments or regular volumes.
Become a Kolonell referral partner
Do you know e-merchants sitting on consumable products without selling them on subscription? Refer them to Kolonell and earn 15 % + 5 % recurring on a showcase site, 12 % on e-commerce, 10 % on marketplace, 8 % on institutional.
Let's talk about your project. We turn your one-off sales into predictable recurring revenue with mobile money payment. 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.
