Products that help brands sell more
Upsize CRM, Chat, Booking, Loyalty and ERP — our own apps for Thai and Japanese businesses, built to work together.
The Upsize suite
Upsize CRM
One CRM for your customers, with LINE at its core
Know your customers, group them into audiences and reach them with the right message — broadcasts, rich menus and no-code automation, all from one dashboard.
- Contacts and tags
- Audiences (segments)
- Broadcast campaigns
- Rich menus with schedules
- No-code automation builder
Upsize Chat
One inbox for every channel
Answer customers from LINE, Facebook, Instagram, WhatsApp, TikTok, Shopee, Lazada and your website in a single shared inbox — with team assignment and an AI assistant.
- LINE (including groups), Facebook, Instagram, WhatsApp
- TikTok, Shopee, Lazada, website chat
- Team assignment and auto-assign
- Unified customer profiles
- AI assistant with human handoff
Booking System
Appointments and classes, booked in LINE
Let customers book services, appointments and classes through LINE or a customer portal, while staff, rooms and equipment are assigned automatically.
- Booking via LINE and customer portal
- Staff, rooms, tables and equipment
- Automatic staff assignment
- Packages and credits
- Reminders and notifications
Loyalty
Points and membership across branches
Reward repeat customers with points and membership tiers that work across all your branches, with rewards and redemptions in a customer portal.
- Points programme
- Membership across branches
- Rewards and redemptions
- Customer portal
- Shared with CRM, Chat and Booking
ERP
Accounting made simple for Thai SMEs
From quotation to tax invoice, with automatic double-entry bookkeeping, VAT reporting and withholding tax certificates — for one company or many.
- Quotations and invoices
- Tax invoices
- Automatic double-entry
- VAT report (ภ.พ.30)
- Withholding tax certificates (50 ทวิ)
Why teams choose Upsize products
Designed for real multi-branch businesses, not just one shop.
One login, connected apps
Sign in once and move between CRM, chat, booking, loyalty and ERP.
Multi-branch ready
Run every branch or site from the same account, with the right access for each team.
Licensed per app
Switch on only the apps you use. Add more as your business grows.
Built for Thailand and Japan
Made for LINE-first customers and Thai business needs such as VAT and withholding tax.
Not sure which app to start with?
Tell us how you serve customers today and we will suggest a starting point.