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Other Ways to Reach Us
We typically respond within 1–2 business days.
Report a Bug
Found something broken? Describe the exercise, browser, and device — we'll fix it as quickly as possible.
Suggest a Feature
Have an idea for a new exercise type, learning mode, or UI improvement? Let us know!
For Teachers
Want to use LexFizz in your classroom or embed exercises in your school website? Get in touch.
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Find LexFizz on social media and share your favourite exercises.
Frequently Asked Questions
Is LexFizz really free?
Yes, completely and permanently. All 30 exercises are free to use — no ads, no premium tier, no hidden costs. We believe educational tools should be accessible to everyone.
Do I need to create an account?
No. You can use all exercises without signing up, logging in, or providing any personal information. Just open a page and start playing.
Does it work on phones and tablets?
Yes. Every exercise is fully responsive and supports touch events. You can play on iOS, Android, or any modern mobile or tablet browser.
Can I use LexFizz in my classroom?
Absolutely! Teachers are welcome to project exercises on a smartboard, share links with students, or use them as homework. No permission needed.
How do I report a bug?
Use the contact form above and select "Bug Report" as the subject. Please include which exercise, browser, and device you were using so we can reproduce and fix the issue.
Will you add more exercises?
We're always considering new exercise types. If you have suggestions, send them via the contact form and we'll add them to our roadmap.
How quickly will you respond to my message?
We aim to respond to all contact form submissions within 2–3 business days. Technical bug reports are prioritised and usually reviewed within 24 hours. We appreciate your patience, especially during busy periods.
Can I suggest vocabulary topics or specific exercise content?
Yes, suggestions are very welcome. Use the contact form with the subject 'Content Suggestion' and describe the vocabulary topic, grammar point, or exercise format you would like to see. Popular suggestions are added to our content roadmap.
Is there a way to use LexFizz for commercial purposes?
LexFizz exercises are free for individual use, classroom teaching, and non-commercial educational purposes. If you are considering commercial use (such as embedding exercises in a paid product or service), please contact us first to discuss licensing options.
How do I share a LexFizz exercise with my students?
Simply copy the URL from your browser address bar and share it via email, a learning management system, or a messaging app. Every exercise page has a unique URL. You can also use the built-in share button on exercise pages to generate shareable links or QR codes.