ClapReverb vs FlyDocs

Measure the acoustics of a room... with a simple clap ClapReverb lets you instantly evaluate the reverberation time (RT) of an enclosed space — a key factor in determining a room’s acoustic quality. Is the room too echoey? Or too dry? Get the answer in just a few seconds. Simple, fast, and precise With a clean design and intuitive interface, all it takes is a quiet moment and five hand claps. Place your phone or tablet at the center of the room, wait for the signal, and clap your hands (slightly cupped palms). The app analyzes the relevant frequencies and provides a clear picture of the room's acoustics. A professional tool, accessible to everyone Whether you’re an architect, interior designer, engineer, teacher, musician — or simply curious — ClapReverb is for anyone who wants to integrate acoustics into their projects. Easily compare your results to typical reference values and decide if acoustic treatment is needed. Scientifically validated The app’s results have been verified through a rigorous experimental protocol, presented at the 26th International Congress on Sound & Vibration. Your feedback helps us improve. Questions or suggestions? Write to us at clapreverb@atelier7hz.com. We’d love to hear from you!

Your passport is in your camera roll. Your visa is buried in your emails. Your I-20 is a PDF you haven't opened in months. FlyDocs fixes that. Built by an international student for every F-1, J-1, and OPT student in the US, FlyDocs gives you one organized place for all your document photos, with smart reminders before your deadlines hit. HOW IT WORKS → Take a photo of your document → Set your expiry date manually → Get reminded before it's too late No accounts. No setup. No complexity. WHAT YOU CAN ORGANIZE → Passport → F-1 & J-1 Visa → I-20 & DS-2019 → I-94 & DS-160 → Social Security Number → EAD OPT and CPT Card → Health Insurance Card → Any document that matters to you NEVER MISS A DEADLINE Visa expiry. Passport renewal. I-20 end date. OPT deadline. Health insurance renewal. FlyDocs reminds you before every deadline so you are never caught off guard, at the airport, the bank, or the immigration office. YOUR PRIVACY. ALWAYS. FlyDocs does not read, extract, or store any of your personal data. No servers. No cloud. No accounts. Your photos never leave your phone. Document photos are for personal reference only. They are not legally valid copies. FlyDocs is a reference and reminder tool, nothing more, nothing less. FREE. No subscriptions. No in-app purchases. No ads. Free for every international student, always. Stop searching through emails and camera rolls. Download FlyDocs — one tap away, always ready.