Run youron Wasiku
Customers, payments, invoices, and messages. One app.
Free to use. Pay only when you message.
KustomaBook
Record sales, receipts, and inventory
Invoices
Create and collect payments
Bookings
Appointments and reminders
Collections
Track group payments
Campaigns
WhatsApp and SMS blasts
What Wasiku does
Your whole business. One app.
Everything your business runs on, in one simple place.
Record sales and manage inventory.
Log a sale, service, or visit in seconds. The moment you confirm it, Wasiku sends a professional WhatsApp receipt to your customer automatically. No typing. No forgetting. Every transaction acknowledged.
Recent activity
LiveAmaka Osei
Haircut + treatment
₦8,500
2m ago
Chidi Nwosu
Monthly dues paid
₦5,000
14m ago
Fatima Bello
Consultation fee
₦3,200
1h ago
Send a live invoice. It updates itself as you get paid.
Create and send a professional invoice via WhatsApp. When you record a part payment in Wasiku, the invoice link your customer already has automatically reflects the new balance. No resending. No confusion. The invoice stays alive until it is fully paid.
Invoice #0042
Tunde Adeyemi
Let customers book you. Reminders send themselves.
Share your booking link or QR code. Customers pick a time, you confirm, and Wasiku sends a 24-hour reminder, a 1-hour reminder, and a follow-up thank-you after the appointment. All automatically, on WhatsApp.
Today's bookings
10:00
Ngozi Eze
Full makeover
12:30
Bola Akin
Lash extensions
3:00
Kemi Sule
Hair treatment
Group payments tracked. You stop chasing.
Assign a group of customers to a Collection. Set the amount and due date. Wasiku sends automatic reminders before the deadline and lets you record who has paid with one tap. Everyone in the group always knows where they stand.
Monthly Savings
2/4 paidDue: 28 Aug 2026
Emeka Obi
PaidSade Williams
PaidYusuf Musa
PendingGrace Oke
PendingReach all your customers at once. Personally.
Write one message. Wasiku personalises it with each customer's name and sends it by WhatsApp or SMS. See exactly who received it, who read it, and who did not. Credits are only spent on successful deliveries.
Message sent to 342 customers
0
Delivered
0
Read
0
Failed
"I know keeping in touch with customers is important. But it is really hard to keep up with."
A business owner. Like you.
That is exactly why we built Wasiku.
Every action you take in Wasiku automatically sends a WhatsApp message to your customer. Record a sale, they get a receipt. Confirm a booking, they get a reminder. Send an invoice, they get a payment link.
You stay focused on running your business. Wasiku keeps every customer conversation alive.
How it works
Three steps. That is all.
No setup fees. No technical skills needed. Open the app and you are running.
Add your customers
Type them in one by one or upload a spreadsheet. Wasiku organises them automatically into your customer list.
Do your business
Record a sale, send an invoice, take a booking, or track a payment collection. Wasiku handles it all in one screen.
Wasiku talks to your customers
Every action triggers an automatic WhatsApp message. Payment confirmed. Appointment reminded. Invoice sent. You do not have to lift a finger.
Legitimate businesses send freely.
Bad actors never get through. Wasiku monitors every message on the platform in real time. When you send on Wasiku, your reputation is protected by design.
Your payment of ₦5,000 is confirmed
SentReal-time monitoring
Every message sent through Wasiku is scanned the moment it is submitted, before it reaches a single customer.
Spam and scam detection
Wasiku identifies spam patterns, fraudulent content, and phishing attempts automatically. Bad actors are blocked, not just warned.
Reputation protection
Legitimate businesses send freely. Your messages are never associated with spam or fraud because bad content never makes it through.
For businesses that stay close to their customers
Features
Built for how you actually work.
No complexity. No training needed. Open the app and start.
Automatic WhatsApp messages
Every action you take in Wasiku triggers a real WhatsApp message to your customer. Record a sale, the customer gets a receipt. Confirm a booking, they get a reminder. You never have to send manually.
Customer profiles and history
Every customer has a full profile. See every sale, invoice, booking, and message in one place. No spreadsheets. No notebooks. No guessing who paid what.
Delivery proof on every message
See exactly who received your message, who read it, and who did not. No hidden failures. No guessing. If a message does not go through, your wallet is refunded automatically.
Smart fallback messaging
Wasiku tries WhatsApp first. If that fails, it falls back to SMS. Nobody on your list is ever missed because of a technical issue.
Groups and targeted messaging
Organise customers into groups. Send a campaign to only your VIP customers. Remind only the people who have not paid. Target the right people, every time.
Wallet you control
Top up your wallet by card or bank transfer. Credits never expire. See every debit with a clear description. Failed messages are refunded automatically.
Run your customer service operations on WhatsApp.
Turn customer conversations into organised cases, forms, orders, and updates your team can manage from one professional dashboard.
Explore Wasiku AskWASIKU ASK
New application
Your business deserves better tools.
Wasiku is free to use. Set up in minutes. No technical knowledge needed.
Pay only when you send a message.