The verdict in three sentences
A mobile POS app replaces the 300,000 FCFA cash register with a plain smartphone or tablet that takes Wave, Orange Money, and card payments, updates stock on every sale, and prints or texts the receipt. It works offline and syncs the moment the network returns — essential in a busy market. The closing Z report, long a source of manual errors, generates itself at the end of the day.
Why an app beats the cash register in 2026
A shop's real problem isn't recording a sale, it's knowing at day's end what was sold, collected, and left in stock — without counting notes by hand. A classic register isolates these three figures; the app links them.
| Criterion | Cash register | POS app 2026 |
|---|---|---|
| Entry cost | 300,000 FCFA (hardware) | 0 FCFA (your phone) |
| Wave/OM collection | No | Yes, QR + link |
| Real-time stock | No | Yes, decremented on sale |
| Offline operation | — | Yes, auto sync |
| Customer receipt | Paper only | SMS, WhatsApp, or paper |
| Z report / closing | Manual | Automatic |
| Multi-till / multi-store | Costly | Included |
| Price update | Re-entry | Instant across all tills |
The decisive point: every Wave payment is auto-reconciled with its sale, eliminating the end-of-day cash discrepancy and hard-to-trace internal theft.
Monthly SaaS cost (2026 ballpark)
| Plan | Monthly price | Points of sale | Key features |
|---|---|---|---|
| Solo | 5,000 FCFA | 1 | Sales, Wave, SMS receipt |
| Shop | 12,000 FCFA | 2 | + real-time stock, Z report |
| Chain | 25,000 FCFA | 5 | + multi-store, analytics |
| Brand | 45,000 FCFA | Unlimited | + roles, discounts, loyalty |
Against 300,000 FCFA for hardware depreciated over 3 years (≈ 8,300 FCFA/month with no connected features), the Shop plan at 12,000 FCFA adds stock, mobile money, and the Z report for a trivial premium.
Mini case study
Awa runs a cosmetics shop. She makes 90 sales/day, average basket 4,500 FCFA, i.e. 405,000 FCFA/day. Before the app she lost about 1.5% of revenue to change errors and cash discrepancies, and spent 40 min/evening counting.
With the Shop plan (12,000 FCFA/month):
- Near-zero cash discrepancy: ≈ 6,000 FCFA/day recovered, nearly 180,000 FCFA/month
- 40% of sales taken via Wave, auto-reconciled
- Closing in 3 minutes instead of 40
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The subscription (12,000 FCFA) is repaid in under three days of avoided discrepancies.
FAQ
Do I need special hardware?
No. The app runs on Android or iOS. You can add a Bluetooth receipt printer (≈ 35,000 FCFA) and a barcode scanner if you like, but neither is required.
How does it work without internet?
All sales are stored locally on the device and sync automatically when the network returns. No sale is lost during an outage.
Does stock update on its own?
Yes. Every sale decrements stock in real time and triggers an alert when an item drops below its threshold, so you restock in time.
Can I split a sale between Wave and cash?
Yes, mixed payment is supported: part via Wave QR, the rest in cash, on a single receipt.
How many tills can I open?
From 1 (Solo) to unlimited (Brand). All tills share the same stock and report into one real-time dashboard.
Let's talk about your project. We deploy your POS app with Wave collection and real-time stock in a few days. 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.
