The verdict in three sentences
Field expenses — fuel, per diem, small purchases — get lost in an envelope of crumpled receipts and an end-of-month spreadsheet. An expense app captures the receipt photo, reads amount and date by OCR, routes approval to the manager and triggers reimbursement via Wave. The result: the delay drops from 10 days to 48 hours and lost receipts fall by roughly 90 %.
Spreadsheet + envelopes versus a workflow app
The problem is not the arithmetic, it is the chain: collect, verify, approve, pay. Each manual step adds delay and frustration for field staff who front their own money.
| Criterion | Spreadsheet + envelopes | Expense app |
|---|---|---|
| Entering the report | Manual | Photo + OCR |
| Lost receipts | Frequent | -90 % |
| Manager approval | Paper/email | One mobile tap |
| Reimbursement delay | ~10 days | 48 h |
| Payment | Cash/transfer | Automatic Wave |
| Audit trail | Weak | Complete |
An average expense report is worth 15,000 to 80,000 FCFA; compounding reimbursement delays across 20 sales reps quickly locks up several million FCFA in advances.
2026 budget: build or SaaS
Expense SaaS is affordable at small scale but charges per user; the build plugs your approval flow and Wave directly. 2026 order of magnitude.
| Item | Custom build | Monthly SaaS |
|---|---|---|
| Upfront cost | 900,000 - 1,800,000 FCFA | Low |
| Recurring cost | Hosting only | 600 - 1,500 FCFA/user/month |
| Amount/date OCR | Included | Depends on plan |
| Wave reimbursement | Built in | Rare |
| Time to go live | 5 - 8 weeks | 1 - 2 weeks |
| Code ownership | You | The vendor |
For 40 users at 1,000 FCFA/month, SaaS costs 480,000 FCFA/year; the build amortizes in two to three years while eliminating lost receipts.
Mini case study
Awa runs a distribution SME in Dakar with 18 sales reps on the road. Each month she processes about 220 expense reports, 10 to 15 of them without a receipt, a compliance loss. With the app (a 1,400,000 FCFA build), each rep photographs the receipt, OCR pre-fills 15,000 to 80,000 FCFA, and Awa approves in one tap from her phone. The Wave reimbursement goes out within 48 hours, lost receipts drop to one or two, and she reclaims about 6 hours a month of data entry.
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FAQ
Does the OCR really read local receipts?
Yes. OCR extracts amount and date from common printed receipts; the employee fixes it in one tap if needed. The main gain is the end of manual re-keying and unreadable receipts.
Is the Wave reimbursement automatic?
After approval, the app triggers payment to the employee's Wave number. You keep control of the payment batch, but the whole thing takes minutes instead of days.
Can we set per-diem caps?
Yes. You configure caps by expense type and role; the app flags any overrun to the manager before approval, which limits abuse.
Can managers approve remotely?
Yes. Approval happens on mobile, with the receipt photo in view. A traveling manager clears the queue in minutes.
How long to deploy?
Expect 5 to 8 weeks. A pilot on one sales team starts from week four to tune caps and the approval flow.
Let's talk about your project. We scope your approval flow and Wave reimbursement in one call. 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.
