rein. — receipt capture and search

01.

INTRODUCTION

rein helps you capture, organize, and search your purchase receipts. This policy explains what personal information we collect, why we collect it, who we share it with, and the choices you have. It applies to the rein web app, mobile apps, browser extension, and email forwarding service.

rein is operated by reinLabs (“rein”, “we”, “us”). We are the data controller for the personal information described in this policy. You can reach us at support@reinlabs.co.

02.

INFORMATION WE COLLECT

A. ACCOUNT INFORMATION

—Name, email address, and optional phone number when you create an account

—Whether you signed in with email, Google, or Apple (we never see your password for Google or Apple)

—Preferences you set, such as default currency and home country

B. RECEIPT CONTENT

—Receipt images and PDFs you upload, photograph, or capture with the browser extension

—When you use the extension, a screenshot of the page you are viewing is captured — only when you click the capture button, never automatically

—Structured details extracted from your receipts: merchant, date, line items, totals, taxes, payment card type, and the last four digits of the card where printed

—The extraction record also preserves whatever else is printed on the receipt — which can include a name, email, or shipping address that appears on it

C. FORWARDED EMAILS (OPT-IN)

—If you enable email capture, we assign you a private forwarding address and receive the receipt emails you choose to forward to it. We never connect to or read your email inbox.

D. QUESTIONS AND FEEDBACK

—Questions you ask about your receipts, and the answers we generate

—Corrections you make to extracted receipt data (old value, new value, and field), and accuracy feedback you submit — we never log the receipt image, your authentication tokens, or payment details in feedback records

E. DEVICE AND USAGE DATA

—Device type, operating system, push notification tokens, and general usage metrics

—Log events used to keep the service reliable and diagnose technical issues

F. COOKIES AND LOCAL STORAGE

—We use cookies and local storage to keep you signed in and remember your settings. A consent banner lets you manage non-essential cookies.

We do not collect full card numbers or your account passwords for other services.

03.

HOW WE USE YOUR INFORMATION

—To provide the service: capture, store, organize, convert, and display your receipts (contract)

—To answer the questions you ask about your purchases and generate spending insights (contract)

—To send service notifications, such as processing results (contract)

—To operate email capture, only after you turn it on (consent — withdraw any time by turning it off)

—To improve extraction accuracy using the corrections and feedback you submit (legitimate interest)

—To enforce usage limits, prevent abuse, and keep accounts secure (legitimate interest)

We do not sell, rent, or trade your personal information, and we do not advertise to you.

04.

AUTOMATED PROCESSING AND AI

rein uses AI models to read the receipts you capture, answer your questions about them, and generate spending insights. To personalize answers, we maintain a small derived profile of your activity — such as your most frequent merchants and categories over recent months — which is deleted with your account.

—We do not use your receipts, questions, or any of your data to train AI models

—AI output is shown to you for your own records — no automated decision with legal effect is made about you

05.

SERVICE PROVIDERS

We rely on a small number of service providers to run rein. They process your data on our instructions and only to operate the service:

—Amazon Web Services — hosting, storage, authentication, email receiving and sending, push notifications, and AI processing (Amazon Bedrock)

—Google and Apple — sign-in, if you choose those methods

—Frankfurter (European Central Bank data) — currency exchange rates; no personal data is sent

—A cookie consent service that powers the cookie banner on our website

We do not allow third-party advertising or analytics tools to access your personal data.

06.

INTERNATIONAL TRANSFERS

Your data is stored in AWS's Canada (Central) region. AI processing of receipt content and questions may run on AWS infrastructure in the United States or other AWS regions, subject to the same safeguards. By using rein you consent to this transfer.

07.

DATA RETENTION

—Receipts, receipt images, question history, and insights — kept until you delete them or your account

—Raw forwarded emails — deleted once processed, with an automatic one-day cleanup backstop

—Sanitized text copies of forwarded email bodies — 30 days

—Email processing records — 90 days, storing only cryptographic fingerprints, never message content

—Extraction feedback and corrections — 90 days

—Usage counters for daily limits — about 36 hours

08.

SECURITY

—Data is encrypted in transit and at rest

—Your receipts are scoped to your account — other users cannot access them

—Access controls, input validation, and audit logging protect the systems that process your data

09.

YOUR RIGHTS AND CHOICES

—View, edit, and delete receipts on the web and in the mobile app

—Turn email capture on or off at any time in your account settings

—Manage notifications through your device settings

—Delete your account from account settings — your receipts, images, question history, and feedback are deleted. We keep a minimal anonymized deletion record (no receipt content) to prevent abuse; deletion cannot be undone.

—Ask us to access, correct, or delete your information by emailing support@reinlabs.co

—If you believe we have not resolved a privacy concern, you may lodge a complaint with your local data protection authority

10.

CHILDREN'S PRIVACY

rein is not intended for children under 13. We do not knowingly collect personal information from children. If you believe a child has provided us personal information, contact us and we will delete it.

11.

CHANGES TO THIS POLICY

When we change this policy, we update the date at the top of this page. For significant changes we will notify you through the app or website before they take effect.

12.

CONTACT US

For any privacy-related questions, contact us at support@reinlabs.co

PRIVACY POLICY