ClapReverb vs HostCue

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!

Bring game-show energy to any room. HostCue is a fast, offline-first toolkit for quiz hosts, teachers, facilitators, party organizers, and anyone leading a group. Keep the action moving without switching between separate soundboard, timer, scoreboard, and randomizer apps. SOUND CUES • Play buzzers, applause, laughter, suspense, victory, wrong-answer, and audience effects with one tap. • See each cue's duration and playback progress. • Stop or switch sounds instantly. SEGMENT TIMER • Choose quick presets or set a custom duration. • Keep the countdown visible in a floating bar while using other tools. • Get clear countdown cues and overtime tracking. TEAM SCOREBOARD • Track 2–4 teams with editable names. • Add or subtract points with large, host-friendly controls. • Undo the latest score change or reset the board. • Keep names and scores between launches. QUICK DECISIONS • Flip a coin. • Roll a die. • Choose Yes or No. • Pick a random number within your range. • Enjoy animated reveals that build anticipation before the result. BUILT FOR THE PERSON HOLDING THE ROOM Large controls, clear feedback, and a consistent layout make HostCue easy to operate while you teach, present, or host. Core tools work without an account or internet connection. Use HostCue for classroom quizzes, trivia nights, workshops, party games, family activities, church groups, team sessions, and anywhere a little game-show energy helps.