The verdict in three sentences
An SME that keeps its books in Excel loses 4 to 6 days a month on data entry and collects invoices in 55 days instead of 30, choking its cash flow. An invoicing SaaS at 10,000-30,000 FCFA/month is enough to start, but a custom application (build 3,000,000-5,500,000 FCFA) embeds your accounting rules, catalogue and mobile-money payment links. The choice depends mainly on your invoice volume and your compliance needs.
SaaS or custom app: the comparison
For a micro-business with a handful of invoices a month, SaaS is unbeatable. As volume climbs and tax compliance becomes critical, the dedicated app takes the lead.
| Criterion | Invoicing SaaS | Custom application |
|---|---|---|
| Upfront cost | 0 FCFA | 3,000,000 - 5,500,000 FCFA |
| Monthly cost | 10,000 - 30,000 FCFA | 50,000 - 100,000 FCFA (maintenance) |
| 3-year cost | 360,000 - 1,080,000 FCFA | 4,800,000 - 9,100,000 FCFA |
| Tax compliance | Partial | Full and configured |
| Mobile-money payment link | Plan-dependent | Native |
| Cash-flow dashboard | Standard | Real-time, tailored |
| Data ownership | Vendor | SME |
The collection numbers
The heart of the matter is cash. Here is the typical impact of an invoicing app on an SME's indicators in 2026 (order of magnitude).
| Indicator | Excel bookkeeping | With the app |
|---|---|---|
| Monthly close time | 4 - 6 days | 0.5 - 1 day |
| Average payment delay | 55 days | 30 days |
| Customer reminders | Manual, forgotten | Automatic SMS/email |
| Quote to invoice | Re-keyed | 1 click |
| Collection | Cheque / cash | Mobile-money link |
| Cost of an accountant | 250,000 FCFA/month | time redeployed to analysis |
Mini case study
David runs a distribution SME in Kampala with 18,000,000 FCFA monthly revenue and an average 55-day receivable. By cutting the delay to 30 days through automatic reminders and a payment link, he frees up roughly 15,000,000 FCFA of tied-up cash. With an accountant at 250,000 FCFA/month who reclaims 4 days of data entry, he saves ~50,000 FCFA/month of productive time. The app at 4,500,000 FCFA essentially pays for itself through the cash gain within the first year.
FAQ
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
Isn't SaaS enough for a small SME?
For a few invoices a month, yes: 10,000-30,000 FCFA/month is the best value. Beyond 50-100 monthly invoices, or with specific accounting rules, a custom app becomes worthwhile.
How does the payment link speed up collection?
The customer receives the invoice with a pay button and settles by mobile money in one click, no trip required. Payment is reconciled automatically, cutting the average delay from 55 to 30 days.
Does the app follow local accounting standards?
Yes: chart of accounts, VAT and statements are configured to the standards in force in 2026, easing month-end close and audits.
Can a quote be converted into an invoice?
Yes, in one click: an accepted quote becomes an invoice with the same detail, no re-keying and no errors.
How long to set up?
An MVP (quotes, invoices, reminders, payment link) ships in 5 to 8 weeks; the cash-flow dashboard and advanced compliance follow.
Let's talk about your project. We audit your invoicing and propose the right SaaS or custom mix. 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.
