TERMS OF SERVICE - STUPID HARD CHESS
Effective date: July 19, 2026
These Terms of Service ("Terms") govern your use of the Stupid Hard Chess
iOS application ("the app"), published by Yazeed Masri, an individual
developer ("I," "me," "the developer"). By downloading, accessing, or using
the app, you agree to these Terms. If you do not agree, do not use the app.
Contact: contact@stupidhardchess.com
1. THE SERVICE
Stupid Hard Chess is a single-player chess game played against a computer
engine, with a twist: pieces you choose to hide are rendered as identical,
same-appearance markers, and you must track what they are from memory. The
app offers a free, ad-supported tier and an optional paid "Pro"
subscription (section 4). The app is available for iOS only, through the
Apple App Store.
2. YOUR ACCOUNT
- Using the app requires signing in with Apple or Google. You must provide
accurate account information and keep access to your sign-in method.
- Your account is personal to you. You are responsible for activity that
occurs under it.
- You may delete your account at any time in the app (Profile > Delete
Account). Deletion permanently removes your account and its backend data,
including your Stupid Score and Stupid Streak, which cannot be restored.
- I may suspend or terminate accounts that violate these Terms
(section 10).
3. ACCEPTABLE USE
You agree not to:
- use the app for any unlawful purpose;
- interfere with or disrupt the app or the servers and services it relies
on;
- attempt to gain unauthorized access to other users' accounts or to
systems used by the app;
- reverse engineer, decompile, or disassemble the app except where such a
restriction is prohibited by law;
- resell, redistribute, or commercially exploit the app or its content.
4. PRO SUBSCRIPTION, BILLING, AND FREE TRIAL
Plans. Pro is an auto-renewing subscription offered as a monthly plan
($4.99/month) and an annual plan ($39.99/year). The price shown in the App
Store at the time of purchase is the price that applies; prices may vary by
region and may change for future billing periods with notice through the
App Store.
What Pro includes. No ads, additional per-game board reveals, the full
Customize mode, and advanced statistics, as described in the app.
Billing by Apple. All payment, billing, renewal, cancellation, and refund
processing is handled by Apple through your Apple account, not by me. I
have no access to your payment details and cannot issue refunds; refund
requests go to Apple (reportaproblem.apple.com).
Free trial. New subscribers receive a 7-day free trial. Trial eligibility
is determined by the App Store (one trial per subscription group; if you
previously subscribed and lapsed, you may not be eligible again). Unless
you cancel at least 24 hours before the trial ends, the subscription begins
and your Apple account is charged.
Auto-renewal. Subscriptions renew automatically at the end of each billing
period unless cancelled at least 24 hours before the period ends. You can
manage or cancel your subscription anytime in your Apple account settings
(Settings > Apple ID > Subscriptions).
Lapse. If your subscription ends, Pro features lock and the free tier
resumes, including ads. Your Stupid Score and Stupid Streak are preserved.
Your purchase is also subject to Apple's Media Services Terms and
Conditions (https://www.apple.com/legal/internet-services/itunes/).
5. SCORES, STREAKS, AND VIRTUAL FEATURES
Stupid Score, Stupid Streak, board reveals, and similar in-app features are
gameplay features only. They have no monetary value, cannot be sold,
transferred, or redeemed, and may be adjusted, rebalanced, or reset as part
of updates to the game's design.
6. INTELLECTUAL PROPERTY
Except for the third-party components described below, the app, including
its code, design, artwork, name, logo, and content, is the property of the
developer and is protected by applicable intellectual property law. You
are granted a limited, personal, non-exclusive, non-transferable,
revocable license to use the app for your own non-commercial entertainment
on Apple-branded devices that you own or control, in accordance with these
Terms and the App Store's usage rules. No other rights are granted.
Third-party and open-source components. The app incorporates third-party
software components that are not owned by the developer and are licensed
under their own terms, including the Stockfish chess engine, (c) the
Stockfish developers, licensed under the GNU General Public License
version 3 (GPLv3; https://www.gnu.org/licenses/gpl-3.0.html; source at
https://github.com/official-stockfish/Stockfish). Nothing in these Terms
limits or removes any rights those licenses grant you, and to the extent
of any conflict between these Terms and an open-source license, the
open-source license governs for the component it covers.
7. THIRD-PARTY SERVICES
The app relies on third-party services, including Apple (sign-in,
distribution, payments), Google (sign-in, advertising), Supabase (backend),
PostHog (analytics), and Sentry (crash reporting). Your use of those
services is subject to their own terms and privacy policies. How the app
uses data through these services is described in the Privacy Policy. The
app also incorporates third-party open-source software, including the
Stockfish chess engine (see section 6).
8. DISCLAIMER OF WARRANTIES
THE APP IS PROVIDED "AS IS" AND "AS AVAILABLE," WITHOUT WARRANTIES OF ANY
KIND, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. I
DO NOT WARRANT THAT THE APP WILL BE UNINTERRUPTED, ERROR-FREE, OR THAT DATA
(INCLUDING SCORES AND STREAKS) WILL NEVER BE LOST. SOME JURISDICTIONS DO
NOT ALLOW THE EXCLUSION OF IMPLIED WARRANTIES, SO SOME OF THE ABOVE MAY NOT
APPLY TO YOU.
9. LIMITATION OF LIABILITY
TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE DEVELOPER SHALL NOT BE LIABLE
FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES,
OR FOR ANY LOSS OF DATA, PROFITS, OR GOODWILL, ARISING OUT OF OR RELATED TO
YOUR USE OF THE APP. THE DEVELOPER'S TOTAL AGGREGATE LIABILITY FOR ANY
CLAIM ARISING OUT OF OR RELATING TO THE APP OR THESE TERMS SHALL NOT EXCEED
THE GREATER OF (A) THE AMOUNT YOU PAID FOR THE APP IN THE TWELVE (12)
MONTHS BEFORE THE CLAIM AROSE, OR (B) FIFTY U.S. DOLLARS ($50). SOME
JURISDICTIONS DO NOT ALLOW CERTAIN LIMITATIONS OF LIABILITY, SO SOME OF THE
ABOVE MAY NOT APPLY TO YOU.
10. TERMINATION
You may stop using the app, and may delete your account in the app, at any
time. I may suspend or terminate your access to the app if you materially
violate these Terms. Sections 5 through 9 and 11 through 13 survive
termination.
11. APPLE APP STORE TERMS
These Terms are between you and the developer only, not with Apple. Apple
is not responsible for the app or its content, and has no obligation to
provide maintenance or support for it. To the extent required by Apple's
terms: Apple and Apple's subsidiaries are third-party beneficiaries of
these Terms and may enforce them against you; and in the event the app
fails to conform to an applicable warranty, you may notify Apple for a
refund of the purchase price (if any), and to the maximum extent permitted
by law Apple has no other warranty obligation with respect to the app.
12. GOVERNING LAW
These Terms are governed by the laws of the Commonwealth of Massachusetts,
USA, without regard to conflict-of-law principles. Any dispute arising out
of or relating to these Terms or the app shall be brought in the state or
federal courts located in Massachusetts, and you consent to their
jurisdiction.
13. CHANGES TO THESE TERMS
I may update these Terms from time to time. The effective date above will
be revised, and material changes will be noted in the app or its App Store
release notes. Continued use of the app after a change means you accept the
updated Terms.
14. CONTACT
Yazeed Masri, developer of Stupid Hard Chess
Email: contact@stupidhardchess.com