Contact
Chessllenge (Android & iOS) · Typical response time: 2 business days
One address for everything: muhammedariforhan@gmail.com
Chessllenge is built by a one-person team. There is no call centre and no live chat; every email you send is read by the developer directly.
Where to write, by topic
The address is the same for all of them — using the subject line below gets your request into the right queue faster.
| Topic | Subject line | Include |
|---|---|---|
| Account problems, recovery, general support | Support |
Your player ID, device model, app version |
| Account deletion request | Account Deletion |
Your recovery code or player ID |
| Privacy, GDPR or KVKK request | GDPR / KVKK |
Your player ID and the request (access, rectification, erasure, objection) |
| Cheating or win-trading report | Fair Play |
Opponent's username, date and time of the game |
| Bug report | Bug |
What you did, what you expected, what happened; a screenshot |
| Legal notice, copyright, trademark | Legal |
Relevant links and the basis of your claim |
| Security vulnerability | Security |
Reproduction steps — see below |
| Press, partnerships, tournament proposals | Partnership |
Who you are and what you propose |
You might find it here first
Most questions are already answered in writing; a quick look may save you the wait:
- Support — changing devices, recovery codes, rating questions, disconnections
- Account deletion — instant in-app deletion steps
- Community guidelines — what's prohibited and how reports are handled
- Privacy Policy — what we store and why
Data controller
For GDPR and KVKK requests, the data controller is the app's developer, reachable at muhammedariforhan@gmail.com. We complete requests within 30 days at the latest and confirm the outcome in writing.
To verify your identity we have to ask for your player ID or recovery code. This is not a formality: since we store no name, email or phone number, we hold nothing else that could identify you.
Reporting a security vulnerability
If you find a vulnerability, please tell us first and give us
reasonable time to fix it before disclosing publicly. Use the subject line
Security and describe the reproduction steps and impact.
While testing, do not touch other players' accounts, data or games, and do not run load tests that degrade the service. Good-faith reports are welcome — but testing that reaches other people's data is a breach of the Terms of Service.
What to expect
- Response time: usually 2 business days, 30 days at the latest.
- Language: English or Turkish.
- There is no in-app messaging — email is the only way to reach us, and nobody can message you inside the game.
- We ask for your recovery code only for account deletion or identity verification, never otherwise. Do not trust any other message claiming to be us and asking for your code.