RapidOS · by Nellika
The first ERP your team will actually use on day one instead of quietly retreating to spreadsheets.
RapidOS gives growing businesses the power of an all-in-one back office with zero breaking updates, predictable flat pricing, and none of the consultant extortion that turns traditional ERPs into a nightmare.
The Thai-first back office for growing companies.
No credit card · One price for the whole company
Everything on one screen
Every department, one system
HR, accounting, purchasing, sales, inventory, manufacturing and service. Turn on modules one at a time; the data is connected, so nothing is entered twice.
Illustrative interface
Built for Thai businesses since 2020
Why teams switch
Struggling with your old ERP system?We understand your pain.
Breaking upgrades
Yearly forced version updates break custom workflows, wipe custom data fields, and reset configurations (e.g., losing multi-bin inventory locations and defaulting 5,000 SKUs back to a single warehouse).
Consultant & support pack extortion
Customers burn tens of thousands of dollars on hourly support packs just to get generic offshore reps or partners up to speed on basic company workflows.
Accounting & ledger chaos
Core platform changes alter chart-of-accounts behavior and invoice matching without warning, throwing historical bookkeeping into multi-year reconciliation nightmares.
Pricing bait-and-switch
Changing licensing terms, penalizing growth by retroactively charging for "light" or viewer users, and trapping businesses in rising subscription fees.
Bloated complexity
Trying to force a complex, enterprise-manufacturing modular monster onto an agile business that just needs clean, reliable daily execution.
We can help
Tell us how your team works today. We will show you what RapidOS fixes first, with no long contract and no consultant fees.
Contact usOne product, every role covered
The same dashboard shows each person a different company.
Automatically, from their role — nothing to configure, no app-hunting.
Start with what you need
Start today, grow in the same system.
Begin with what hurts most — HR, petty cash or accounting — and add modules when the business is ready. One dataset, no migration.
HR & Thai payroll
Contracts, time off, attendance, documents · Payroll with SSO and PND.1 (Customized)
Petty cash & cash advances
Floats per branch, advance and settle, receipts attached, approve from the phone
Requisitions & approvals
Purchase requests, multi-step approval, status tracking, memos and notice board
Thai accounting
VAT, WHT, PP.30, PND.3/53, tax invoices, RD-Prep, bank reconciliation, cheques, assets
Sales & CRM
Customers, quotations, sales orders, invoices, deal follow-up
Inventory & purchasing
Receipts, deliveries, transfers, barcodes, lots · Purchase orders with 3-way match
Manufacturing & shop-floor IoT
BOM, work orders, QC, costing · Production terminals, scales, label printers
POS & payments
Storefront, members, promotions, PromptPay QR, EDC and reconciliation
Example: Thailand
CustomizedThai accounting and payroll, compliant from day one
Not international accounting with Thai tax bolted on — the Revenue Department's documents are where every workflow starts.
Beyond Thailand · Customize on demand
Wherever you do business, the system fits that country.
Thai accounting is one example. We write every module ourselves, so we can customize RapidOS to the laws, language and way of working of each country, on the same dataset as the rest of your company.
Invoices, withholding and filings in the format that country requires
Salary rules, social security and income tax for each country
Companies in several countries on one dataset, each team in its own language
Connect the banks, QR and payment gateways used in that country
LINE and Rapid Bot AI · Standard and above
Notified on LINE.Answered by AI, in Thai or English.
Plans & pricing
One price for the whole company. Never per user.
1-month free trial, no credit card · Monthly, excl. 7% VAT
Standard
Everything except accounting
From 4,000 ฿ / month
Up to 50 employees
Customized
Built around your business
Contact us
Priced per project · Dedicated infrastructure
Custom modules for your business
Dedicated deployment & SLA
Migration & onboarding support
Compare plans
What comes with which plan
| FEATURE | Standard | Customized |
|---|---|---|
| HR — contracts, time off, attendance | ✓ | ✓ |
| Requisitions, memos, notice board | ✓ | ✓ |
| LINE & Rapid Bot AI | ✓ | ✓ |
| Petty cash, advances | ✓ | ✓ |
| Sales, purchasing, inventory, manufacturing, POS, IoT | ✓ | ✓ |
| Manager tools — 1:1s, scorecards, 360° | ✓ | ✓ |
| Thai payroll | — | ✓ |
| Full Thai accounting | — | ✓ |
| Localized for other countries | — | ✓ |
Customer references
Built from real problems, across industries.
Factories, clinics, transport, retail and e-commerce — every module in RapidOS started as a customer's job.
TCFF
Flavours and fragrances manufacturer
MassPart
Plastic bag manufacturer
Veritalife
Healthcare
AM International Hospital
Aesthetic and cosmetic surgery hospital
MGO Mobility
Taxi fleet rental and management
First Rubber
Rubber products manufacturer
ReadyProp
Real estate lead marketplace
THAI TOA
Process manufacturing
KOTHALAY
Seafood restaurant
Nellika Consultancy Services
We write the system. We don't just configure it.
Nellika is a consulting and development team in Bangkok. We build modules, connect legacy systems and put devices on the shop floor for each customer's specific process. RapidOS is the sum of that work — ready to use, without starting a project every time.
All software under the Nellika Commercial License · Your data and your server stay yours
Frequently asked
Before you start
What is RapidOS?
A ready-made back office for Thai companies — HR, payroll, petty cash, requisitions, accounting and integrations on one shared dataset. Sign up and it's running in minutes.
Do we have to replace everything we use today?
No. Start where the pain is clearest, then connect existing systems over API, CSV or a connector we build around what you already have.
Can we start with only some modules?
Yes. Start with the modules you need on Standard, then add more or upgrade to Customized any time in the same system, with no migration.
Does it work on a phone?
Yes — in the browser on any device, and with LINE notifications and approvals on Standard and above.
Where is our data?
Your data is stored in Singapore by default, and can be kept in Thailand when your requirements call for it.
Start today, in five minutes.
A 1-month free trial with no credit card — or tell us how the office works today and we'll help you see what should get easier first.