Posterita · Built in Mauritius · Since 2010
An operating system for SMEs
in the developing world.
Seven products that talk to each other. One account that grows with you. Built for shops, restaurants, agencies, and small businesses that would rather not assemble their stack from five disconnected SaaS subscriptions.
Free plan available · no credit card · cancel anytime
The family
Seven products. One account. Built to work together.
Start where your business needs it most. Add the rest as you grow — without re-onboarding, without forking your data, without paying five different SaaS subscriptions to do one job.
Retail OS
Offline-first POS, inventory, KDS, loyalty, staff.
Learn moreLegal OS
Mauritius company secretary work, out of spreadsheets.
Learn moreMail OS
Every Gmail attachment, classified and searchable.
Learn moreAgency OS
Supervision for AI agents — approve, audit, kill switch.
Learn moreAccount OS
One identity across the Posterita family.
Learn moreDelivery OS
Dispatch, drivers, and proof of delivery.
Learn moreCommerce OS
WhatsApp-first self-service storefront.
Learn moreThe thesis
Five subscriptions, or one operating system?
Most SMEs end up paying for a POS, a bookkeeping app, a company-secretary tool, a delivery dispatcher, and a WhatsApp chatbot — five vendors, five logins, five renewal dates. Posterita is the bet that you can have all of that as one platform.
One customer relationship
Start with Retail OS. Add Legal OS next year. Add Mail OS the year after. Your team, your data, your settings — already there. No re-onboarding, no API plumbing, no five different billing portals to keep an eye on.
One compliance posture
DPA 2017, FIAMLA, ETA 2000 — we hold ourselves to the same standards across every product. PII encrypted at the column level, audit logs append-only, RLS on every tenant table. One privacy review covers the family — not five.
One platform, AI-leveraged
We ship faster than legacy SaaS because our engineering, support, and documentation are AI-leveraged. That means lower-cost products. That means Mauritius-priced SaaS without quality compromise — and a roadmap that moves at the pace your business actually needs.
Retail OS captures every sale. Legal OS files the company that earns from them. Mail OS reads the inbox. DeliveryOS runs the last mile. Agency OS supervises the AI agents. Commerce OS opens the WhatsApp storefront. Account OS holds the identity. One account, seven products, one operating system.
How it fits together
Account OS holds the family together. Each product holds its own data.
One login. One organisation. One team roster. But your POS data stays in Retail OS, your statutory records stay in Legal OS, your attachments stay in Mail OS — each product keeps its own database and its own compliance boundary. Account OS is the bridge, not a data lake.
What Account OS owns
- Users and organisations — one identity per person across the family.
- Memberships and invitations — invite once, grant access to whichever products fit the role.
- Product access grants — turn Retail OS, Legal OS, Mail OS on or off per organisation.
- Workspace records — managed companies, locations, account-level billing and admin contacts.
What each product owns
- Retail OS — catalogue, tills, receipts, stock, customers, loyalty, orders.
- Legal OS — companies, persons, KYC, statutory filings, documents, signatures.
- Mail OS — mailboxes, .eml provenance, attachment register, OCR classifications.
- Each product app — its own auth, its own RLS, its own compliance boundary.
Product apps store a bridge link (account_user_id, account_organization_id) alongside their own local IDs. Revoke a person's access in Account OS and they lose access everywhere, instantly.
Get started today
Set up your store in 90 seconds.
No email required. No credit card. Pick your industry and start selling.