Last updated: 26 June 2026
This Privacy Policy explains how WoilaTech (Pont Norvégien, Marché Bantaï, Ngaoundéré, Cameroon), publisher of the Lisafi mobile application (the "App"), collects, uses and protects personal data. By using Lisafi you agree to the practices described below.
1. Who controls your data
Lisafi is a digital credit ledger for merchants. Two situations must be distinguished:
- You, the shop user (owner or helper) who creates an account: WoilaTech is the data controller for your account data.
- Your customers, whose name, phone and balance you enter: you, the merchant, are the controller of that data. WoilaTech acts only as a technical processor hosting and processing it on your behalf. It is your responsibility to inform your customers and obtain their consent to store their data and send them reminders (see our Terms of Service).
2. Data we collect
| Category | Data |
|---|---|
| Account & authentication | Phone number (SMS-code sign-in), email address and Google profile name (email / Google sign-in), display name, role (owner or helper). |
| Shop | Shop name, owner phone, Mobile Money number, subscription status. |
| Customer records entered by the shop | Customer name, phone number(s), running balance, dated entries (credit / payment, amount, note, bill reference), optional bill photo (compressed), last-reminder date. |
| Payments | Mobile Money number, pawaPay deposit records (subscription and customer collections). |
| Device & technical | Push notification tokens (FCM); fingerprint is used only on the device (never transmitted); phone contacts are accessed only to import a customer you choose (only the selected contact is saved); app preferences stored locally. |
Lisafi does not collect location data and does not track you for advertising.
3. How we use this data
- Keep the credit ledger and compute balances;
- Show which customers to chase first;
- Send reminders via WhatsApp (at your request);
- Process the subscription and Mobile Money collections;
- Send notifications (new entries, daily collection reminder);
- Keep the App secure and provide support.
4. Sharing with third parties
We never sell your data. We rely on technical service providers:
- Google Firebase (authentication, Firestore database, photo storage, messaging, server functions) — hosted on Google Cloud. Firebase policy / Google Privacy.
- Google Sign-In when you choose that method.
- pawaPay — Mobile Money payment processing (MTN, Orange). pawaPay policy.
- WhatsApp — reminders open in your own WhatsApp; those messages are governed by WhatsApp's policy.
5. International transfer
Google Firebase services may store and process data on servers located outside Cameroon. By using the App you consent to this transfer, which is governed by those providers' contractual safeguards.
6. Retention and deletion
Data is kept while your account exists. A settled customer can be deleted by the owner; deleting the account erases the shop's data (see Account & Data Deletion). Some payment records may be retained for accounting and legal purposes.
7. Security
Each shop is isolated by Firestore access rules (no cross-shop access); data is encrypted in transit; paid access is confirmed only server-side (the App can never unlock itself); a fingerprint lock is available. No system is perfectly secure, so we cannot guarantee absolute security.
8. Minors
Lisafi is intended for merchants and is not directed at minors. You must be at least 18 to create an account.
9. Your rights
You can view and correct data directly in the App, and delete your account from the Profile screen or by emailing us at techwoila@gmail.com.
10. Changes
We may update this policy. The "Last updated" date shows the current version; significant changes will be highlighted in the App.
11. Contact
WoilaTech
Pont Norvégien, Marché Bantaï, Ngaoundéré, Cameroon
Phone: +237 656 65 56 56
Email: techwoila@gmail.com