Privacy Policy & Terms

Operator: Kimsa, San Rafael, California · Contact: support@kimsa.ai
App policy effective July 15, 2026 · page last updated July 18, 2026.

This page covers three things: 1. The Kimsa app (including Kimsa: Math Practice on the App Store) · 2. This website · 3. The engine as licensed to white-label partners. Plus the terms summary and trademark notice.

Part 1 · The Kimsa app

Kimsa ("we," "the app") is a calculator-free math practice and test-prep app used by students (about ages 12–15) and set up by a parent, guardian, or a student aged 13 or older. We built it to collect as little as possible. This part explains what that means. It applies to Kimsa: Math Practice on the App Store and to Kimsa-operated web and school/tutor editions.

1.1 What we do NOT collect

We do not collect personal information. Specifically, we do not ask for or store your name, email address, phone number, mailing address, date of birth, photos of you, contacts, or location. We do not use advertising identifiers, and we do not run third-party advertising or third-party analytics/tracking SDKs.

1.2 What the app stores, and where

Learning progress — practice results, mastery, streaks, and practice-test scores. This is stored on your device. The App Store app has no login or account; when its cross-device sync ships it uses your own iCloud (Apple's private database for your Apple ID) — we cannot read it, and it never touches our servers. (School/tutor editions sync to our cloud database instead, keyed by an opaque sign-in identifier — never a name or email — with each record readable and writable only by the account that owns it, enforced by database Row-Level Security.) We never store a photo of homework in this record.
A parent-visible Homework Help log (if you use Homework Help) — the text a student typed or photographed into the AI tutor, kept so a parent can review it in the app (behind the parent PIN). No photo image is stored — only extracted text. It stays with the learning progress above, under the same storage model.
On this device only — a one-time age confirmation. Subscription state comes from Apple, not from anything we store.

1.3 The AI tutor (Homework Help and explanations)

Some features use an AI model to explain problems. When you use them, the problem text (and, if you choose the cloud photo option, the image) is sent through our secure server to our AI provider, Anthropic, to generate the explanation. This content is not linked to your identity (we send no name/email), and under our agreement Anthropic does not use it to train its models. We add automated safety checks that keep the AI on academic topics and screen both what a student submits and what the AI replies, so the tutor stays age-appropriate. Photos are read on your device when possible (using Apple's on-device text recognition), so the image itself never leaves the phone — only the extracted text is tutored. A parent can turn the AI off in Settings.

1.4 Children's privacy (COPPA / GDPR-K)

The app is intended for students aged 13 and older, or younger students whose parent or guardian sets it up and supervises use. On first launch we ask for this confirmation. We do not knowingly collect personal information from children under 13; because we collect no personal information from anyone, there is none to collect. A parent or guardian can review the Homework Help log, turn the AI off, export the data, or delete all data at any time (see §1.6). If you believe a child has provided personal information, contact support@kimsa.ai and we will delete it.

1.5 Payments

Subscriptions are processed by Apple through in-app purchase. We never receive or store your payment card or Apple ID password.

1.6 Data retention and deletion

The App Store app keeps your data on your device (and, when iCloud sync ships, in your own iCloud) — deleting the app deletes it, and iCloud data is under your Apple ID's control; there is no account on our servers to delete. School/tutor editions: you can delete your account and all associated cloud data in the app (Settings → Account → Delete account), or by emailing support@kimsa.ai.

1.7 Security

Cloud data is protected by database Row-Level Security (each account can access only its own row); no administrative database key is ever placed in the app; the app enforces a Content-Security-Policy limiting where data can be sent. No method of transmission or storage is 100% secure, but we design to minimize what exists to protect.

Part 2 · This website

2.1 What the marketing site collects

If you submit the "Request a demo" form, we collect the details you provide (name, work email, organization, role, and your message) solely to respond to your inquiry and discuss licensing. We may use a privacy-respecting analytics tool to understand aggregate site usage. We do not sell your information.

2.2 Cookies

This site uses only the storage needed to remember your display-theme preference and, if enabled, aggregate analytics. No advertising cookies.

2.3 Your choices

You may request access to or deletion of the inquiry details you submitted by emailing us. Because the app and engine collect no personal data, there is generally nothing further to access or delete on that side.

Part 3 · The engine for white-label partners

The Kimsa learning engine is designed to collect no personally identifiable information to function. A student's practice history and progress are stored on their device; optional cloud sync, if enabled by a licensee, stores only that progress data and is union-merged so it is never overwritten. Any account, login, or billing layer is added and controlled by the licensee who deploys the branded app, and that licensee is responsible for its own privacy practices and policy.

Terms of use (summary)

The content on this site is provided for information about the Kimsa product. Use of the Kimsa: Math Practice app is governed by Apple's standard Licensed Application End User License Agreement and the subscription terms shown at purchase (auto-renewing; cancel anytime in your Apple ID settings — canceling before a free trial ends means you are not charged). Use of the Kimsa engine by businesses is governed by the separate white-label license agreement between us and each licensee. Nothing on this site is a binding offer; commercial terms are set in that agreement.

Trademarks

SAT is a trademark of the College Board. SSAT is a trademark of the Secondary School Admission Test Board (SSATB). ISEE is a trademark of the Educational Records Bureau (ERB). HSPT is a trademark of Scholastic Testing Service, Inc. (STS). Kimsa is an independent study tool and is not affiliated with, endorsed by, or sponsored by the College Board, SSATB, ERB, or STS. These names are used only descriptively, to indicate the exams the engine helps students practice for.

Kimsa is the Kichwa (Quechua) word for "three," used with respect for its origin.

Changes and contact

We will post any changes here with a new date above. Questions, requests, or to report a concern: support@kimsa.ai — or see the Support page.