Subprocessors
Every company that receives data from KANJIN, what each one gets, and where it runs. If a company is not on this list, it does not receive anything.
Last updated 29 September 2026
The list
| Company | What it does | What reaches it | Where |
|---|---|---|---|
| Supabase | The database and the sign-in behind every shop: the stamp card, the ledger, the items and the figures. | Everything a shop holds: a customer’s phone number, and their name, email address and birthday when they gave one, their visits and rewards, and the shop’s own takings, invoices, items and costs. | Singapore (Amazon Web Services, ap-southeast-1). |
| Vercel | Runs the website and the back office. | Whatever a browser sends to load a page: the address requested, an IP address, and the request headers. Customer records pass through in transit and are not stored there. | Edge locations worldwide, with the application in a chosen region. |
| Resend | Delivers the shop’s emails. | The recipient’s email address and first name, and the message itself, for every promotional email and review request a shop sends. | United States. |
| Anthropic | Drafts replies to reviews, and the creator invitation, when a shop asks it to. | The text of the review being replied to, and the shop’s own words. The reviewer’s name is included only because it is part of the review. No customer list is ever sent. | United States. |
| Brave Search | Finds local Instagram creators. | A city and a kind of business. No customer data of any kind. | United States. |
| Google (YouTube Data API) | Finds local YouTube creators. | A city, a radius and a search term. No customer data of any kind. | United States and worldwide. |
| Google (Business Profile) | Reads a shop’s reviews and posts its replies, when a shop connects it. | The shop’s own Google account authorisation, and the reply it chose to publish. | United States and worldwide. |
| MET Norway | The weather forecast behind the rainy-day email. | A latitude and longitude for the shop. Nothing about any customer. | Norway. |
| Open-Meteo | Turns a place name into a point on the map, and reads last year’s weather. | A place name, or a latitude and longitude. Nothing about any customer. | Germany. |
Where the database lives
Every shop's data is stored in one Supabase project in Singapore, on Amazon Web Services in the region AWS calls ap‑southeast‑1. That is true on the free plan and the paid plan: there is one storage model, not one per plan.
A shop whose own rules require its customers' data to stay inside a particular country or area should write to us before opening an account, so we can tell you whether that suits you. We will not pretend a region we do not have.
Payments
No payment provider is listed because nothing is charged yet. When billing opens, the provider is added to this list before the first payment is taken, and this page keeps its history.
Changes
If a company that receives customer data is added to this list, shops are told before it starts. Removing one needs no notice, because a supplier that no longer receives anything is not a change a shop needs to act on.
The agreement these suppliers sit under is the data processing agreement, and what we collect at all is in the privacy policy.