FlashCard App
Effective: March 20, 2026 · Last updated: March 20, 2026
FlashCard App ("the App," "we," "us," or "our") is published by Esus LLC. We designed this App with a privacy-first architecture. We do not collect, store, transmit, or process any personal data.
All flashcard decks, cards, study progress, and settings are stored exclusively on your device using Apple's SwiftData framework. This data never leaves your device except via iCloud sync (see Section 4).
If you have iCloud enabled, Apple's CloudKit may sync your flashcard data across your devices signed into the same Apple Account. This sync is managed entirely by Apple under Apple's Privacy Policy. We have no access to your iCloud data, no server-side database, and no ability to read, modify, or delete your synced content.
The App contains zero third-party SDKs, analytics frameworks, advertising networks, or tracking libraries. The only external dependencies are Apple system frameworks (SwiftUI, SwiftData, CloudKit, WidgetKit, ActivityKit).
We do not knowingly collect personal information from children under 13 (or the applicable age in your jurisdiction). Because the App collects no personal data at all, it is inherently compliant with the Children's Online Privacy Protection Act (COPPA) and similar international regulations.
Because we do not collect, process, or store personal data, the General Data Protection Regulation (GDPR) data subject rights (access, rectification, erasure, portability, restriction, objection) are inherently satisfied. There is no data to access, correct, or delete on our end. All data resides on your device and/or your iCloud account, both under your control.
We do not sell, share, or disclose personal information. We do not use personal information for targeted advertising. California residents have no personal information held by us to request disclosure of or deletion of.
The App processes no data on any server. All data remains on-device or within Apple's iCloud infrastructure. There are no cross-border data transfers initiated by us.
You can delete all App data at any time via Settings → Erase All Data within the App, or by deleting the App from your device. If iCloud sync is enabled, deleting the App removes local data; iCloud data can be managed via Settings → Apple Account → iCloud → Manage Storage.
We may update this Privacy Policy. Changes will be posted here with an updated effective date. Continued use of the App after changes constitutes acceptance.
For privacy inquiries: privacy@esus.llc
Effective: March 20, 2026 · Last updated: March 20, 2026
By downloading, installing, or using FlashCard App ("the App"), you agree to be bound by these Terms of Service ("Terms"). If you do not agree, do not use the App.
Subject to these Terms, we grant you a limited, non-exclusive, non-transferable, revocable license to use the App for personal, non-commercial educational purposes on Apple devices you own or control, subject to the Apple Media Services Terms and Conditions.
You may create flashcard decks and cards ("User Content") within the App. You retain all rights to User Content you create. We claim no ownership of your User Content.
You are solely responsible for the User Content you create, import, or share. You represent and warrant that:
The App is designed for personal educational use. While fair use doctrines in many jurisdictions may permit limited use of copyrighted material for personal study, fair use is a complex legal doctrine that depends on specific circumstances. We do not provide legal advice. If you are uncertain whether your use of third-party content qualifies as fair use, consult a qualified attorney.
Because all User Content is stored locally on your device (and optionally synced via your personal iCloud account), we have no ability to access, review, moderate, or remove your User Content. We are not a host or publisher of User Content.
To the extent applicable, we comply with the Digital Millennium Copyright Act (DMCA) and similar international copyright frameworks. As a local-first application that does not host, transmit, or make user content publicly available, the App functions as a personal tool analogous to a notebook. We do not store, serve, or distribute User Content on any server we operate.
If you believe content shared via the App (through any future sharing feature) infringes your copyright, you may send a DMCA takedown notice to:
DMCA Agent: Esus LLC
Email: dmca@esus.llc
Your notice must include: (a) identification of the copyrighted work; (b) identification of the allegedly infringing material; (c) your contact information; (d) a statement of good faith belief; (e) a statement of accuracy under penalty of perjury; (f) your physical or electronic signature.
If you believe your content was wrongly removed, you may submit a counter-notification per 17 U.S.C. § 512(g).
We reserve the right to terminate access for repeat infringers in accordance with applicable law.
The App, including its design, code, user interface, icons, and documentation, is owned by Esus LLC and protected by copyright, trademark, and other intellectual property laws. The spaced repetition algorithms (SM-2, FSRS, Leitner, Ebbinghaus) are used under their respective open-source or public domain licenses.
THE APP IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND NON-INFRINGEMENT.
We do not warrant that: (a) the App will meet your requirements; (b) the App will be uninterrupted, timely, secure, or error-free; (c) the results obtained from the App will be accurate or reliable; (d) any defects will be corrected; (e) the App is free of viruses or harmful components.
We make no representations or warranties regarding the effectiveness of any spaced repetition algorithm for learning outcomes. Educational results may vary.
TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL ESUS LLC, ITS OFFICERS, DIRECTORS, EMPLOYEES, AGENTS, AFFILIATES, SUCCESSORS, OR ASSIGNS BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES, INCLUDING BUT NOT LIMITED TO DAMAGES FOR LOSS OF PROFITS, GOODWILL, USE, DATA, OR OTHER INTANGIBLE LOSSES, REGARDLESS OF WHETHER WE HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, ARISING OUT OF OR IN CONNECTION WITH:
OUR TOTAL AGGREGATE LIABILITY FOR ALL CLAIMS ARISING FROM OR RELATING TO THE APP SHALL NOT EXCEED THE AMOUNT YOU PAID FOR THE APP IN THE TWELVE (12) MONTHS PRECEDING THE CLAIM, OR TEN DOLLARS ($10.00 USD), WHICHEVER IS GREATER.
Some jurisdictions do not allow the exclusion or limitation of certain damages. In such jurisdictions, our liability shall be limited to the maximum extent permitted by law.
You agree to defend, indemnify, and hold harmless Esus LLC, its officers, directors, employees, agents, affiliates, successors, and assigns from and against any and all claims, damages, obligations, losses, liabilities, costs, and expenses (including reasonable attorneys' fees) arising from:
These Terms shall be governed by and construed in accordance with the laws of the State of Delaware, United States, without regard to its conflict of law principles.
Any dispute, controversy, or claim arising out of or relating to these Terms or the App shall be resolved by binding arbitration administered by the American Arbitration Association (AAA) under its Consumer Arbitration Rules. Arbitration shall take place in Wilmington, Delaware, or at the claimant's election, via telephone or video conference. The arbitrator's decision shall be final and binding.
YOU AGREE THAT ANY ARBITRATION OR PROCEEDING SHALL BE LIMITED TO THE DISPUTE BETWEEN US AND YOU INDIVIDUALLY. YOU WAIVE YOUR RIGHT TO PARTICIPATE IN A CLASS ACTION LAWSUIT OR CLASS-WIDE ARBITRATION.
Notwithstanding the above, either party may bring an individual action in small claims court for disputes within that court's jurisdiction.
We may terminate or suspend your access to the App at any time, without prior notice or liability, for any reason, including breach of these Terms. Upon termination, your license to use the App ceases immediately. Sections 3, 4, 6, 7, 8, 9, and 11 survive termination.
We reserve the right to modify these Terms at any time. Changes will be posted here with an updated effective date. Your continued use of the App after changes constitutes acceptance of the revised Terms.
For legal inquiries: legal@esus.llc
Effective: March 20, 2026
FlashCard App is a local-first application. User-created flashcard content is stored on the user's device and/or their personal iCloud account. We do not host, serve, or distribute user-generated content on any server.
To the extent any future feature enables sharing of content, we will comply with the Digital Millennium Copyright Act (17 U.S.C. § 512) and will promptly respond to valid takedown notices.
Send written notice to:
DMCA Agent
Esus LLC
Email: dmca@esus.llc
Include: (1) description of the copyrighted work; (2) description of the infringing material and its location; (3) your contact information; (4) a good faith statement; (5) a statement of accuracy under penalty of perjury; (6) your signature.
If you believe content was wrongly removed, send a counter-notification including: (1) identification of removed material; (2) statement under penalty of perjury that removal was a mistake; (3) your contact information; (4) consent to jurisdiction; (5) your signature.
© 2026 Esus LLC. All rights reserved.