Terms of Service
These terms govern your use of lefthandtrainer.com ("the site", "the trainer"). The site is operated by Dan W., an independent individual developer, contactable at contact@lefthandtrainer.com. By using the site you agree to these terms. If you don't agree with them, please don't use the site.
1. What the service is
Left Hand Trainer is a free, browser-based keyboard reaction trainer for PC gamers, plus a set of written guides. There is no account, no subscription and no purchase. The service is provided as-is and may be changed, paused or discontinued at any time without notice.
2. Who may use it
The site is not directed to children under 13, and you may not use it if you are under 13 (or under the minimum age of digital consent in your country, where that is higher). If you are under 18, please make sure a parent or guardian is comfortable with your use of a site that displays third-party advertising.
3. Acceptable use
You may use the trainer freely for personal practice, including on stream or in videos. You may not:
- Submit automated, scripted or otherwise falsified scores to the global leaderboard;
- Attempt to overload, disrupt or gain unauthorised access to the site, its database or its hosting;
- Scrape the site at a volume that degrades it for other players;
- Re-publish the guides or the trainer's code as your own work;
- Use the site for anything unlawful.
4. The global leaderboard
Submitting a score is entirely optional. When you submit, you choose a public display name. You agree not to use a name that is obscene, hateful, harassing, impersonates someone else, or contains personal information — your own or anyone else's.
Because the board accepts anonymous submissions, entries cannot be fully verified. I reserve the right to remove any entry, at my discretion and without notice, where it appears falsified or breaches these terms. Leaderboard standings carry no prize, ranking guarantee or other value. To have your own entry removed, just email me.
5. Your local data
Your scores, streaks, settings and per-key reaction times are stored in your browser's local storage on your own device. They are not backed up, and I cannot recover them. Clearing your browser data deletes them permanently. See the privacy policy for the full picture.
6. Health and comfort
The trainer involves fast, repetitive keyboard input. Repetitive strain injuries are a genuine risk for anyone who uses a keyboard intensively. Please warm up, take regular breaks, and stop immediately if you feel pain, numbness or tingling in your hand, wrist or forearm. Nothing on this site is medical advice, and the guides are general information for healthy adults, not treatment or diagnosis. If you have or suspect an injury, see a qualified medical professional.
7. Intellectual property
The site's name, logo, written guides, design and original code are owned by the operator. You may quote short excerpts of the guides with a clear link back to the source. Game names, trademarks and titles referenced in the guides (Valorant, League of Legends, Counter-Strike, World of Warcraft and others) belong to their respective owners; this site is not affiliated with, endorsed by or sponsored by any of them.
8. Advertising and third-party services
The site is funded by advertising served through Google AdSense, and uses Google Analytics, Cloudflare and Supabase to operate. Ads and third-party links are not endorsements, and I have no control over the content of third-party advertisements or the sites they lead to. Any dealings you have with an advertiser are between you and that advertiser. Tips via Ko-fi are voluntary gifts, not purchases, and are non-refundable.
9. No warranty
The site is provided "as is" and "as available", without warranties of any kind, express or implied, including fitness for a particular purpose and uninterrupted or error-free operation. Training results vary between individuals, and nothing here guarantees an improvement in your reaction time, your rank or your gameplay.
10. Limitation of liability
To the fullest extent permitted by law, the operator is not liable for any indirect, incidental or consequential damages arising from your use of the site, including lost data, lost time or lost in-game progress. Some jurisdictions do not allow these exclusions, in which case they apply to the maximum extent permitted. Nothing in these terms limits liability for fraud or for death or personal injury caused by negligence, where that limitation would be unlawful.
11. Changes to these terms
These terms may be updated as the site changes. Updates are posted here with a new "Last updated" date, and continuing to use the site after a change means you accept the revised terms.
12. Governing law
These terms are governed by the laws of the United States, without regard to conflict-of-law principles. If any provision is found unenforceable, the rest remains in force.
13. Contact
Questions about these terms go to contact@lefthandtrainer.com, or via the contact page.