DevDeer TechLoading
Backend Engineering
Online booking for appointments, classes, rooms or resources with reminders, deposits and calendar sync.
From $500.00
Booking by phone and DM means missed calls, double bookings, and a steady drip of no-shows that nobody reminded. Off-the-shelf tools don't fit your services, staff or deposit rules and they take a cut or stamp their brand on your business.
Online booking that fits how you actually run appointments, classes, rooms or resources with real-time availability, deposits and cancellation rules, automatic reminders by email/SMS/WhatsApp to kill no-shows, and two-way calendar sync. One admin calendar for the whole team.
Node.js/PostgreSQL with slot-locking to prevent double bookings, BullMQ reminder jobs, deposit handling via gateway, Google/ Outlook calendar sync, email/ SMS/ WhatsApp notifications, admin calendar UI.
$500
Delivery: 1–2 weeks
Services and availability, email reminders and a single admin calendar for your team.
$1,990
Delivery: 2–4 weeks
Deposits, SMS and WhatsApp reminders, two way calendar sync, staff and resource management.
$8,000
Delivery: 4–8 weeks
Complex booking rules, multiple locations, custom integrations and priority support.
| Compare | Starter | Growth | Premium |
|---|---|---|---|
| Reminders | Email/SMS/WhatsApp | All + custom | |
| Deposits | Not included | Included | Included |
| Calendar sync | Not included | Included | Included |
| Delivery | 1–2 weeks | 2–4 weeks | 4–8 weeks |
Custom: quote
Yes. Each time slot is locked when a booking begins, so two customers cannot reserve the same slot.
Automatic reminders are sent by email, SMS or WhatsApp and deposits and cancellation rules encourage customers to attend or to cancel in time.
Appointments, classes, rooms or any other resource. Services, staff and resources are configured to match how your business runs.
Yes. Two way synchronization with Google Calendar and Outlook keeps availability accurate across your tools.
No. The system is yours, with no commission and no third party branding, apart from the normal fees charged by your payment gateway.
Starter is $500 in 1 to 2 weeks, Growth is $1990 in 2 to 4 weeks and Premium is $8000 in 4 to 8 weeks. Growth Care at $199 per month covers ongoing support.
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