MaxHear vs FixYourDeck

MaxHear turns your iPhone or iPad and your headphones into a live hearing amplifier. It picks up the sounds around you and makes them clearer and louder — right in your ears, in real time. Simple enough for anyone who struggles to catch conversations, hear the TV, or follow people in noisy places. HOW IT WORKS 1. Put on wired or wireless headphones 2. Turn your volume up 3. Tap once — and hear the world louder and clearer WHAT YOU GET • Live sound amplification of the voices around you • Voice Focus — makes speech clearer and cuts background noise • Ear Guard — softens sudden loud sounds to protect your hearing • A personal sound profile from a quick, easy hearing check • A simple equalizer to fine-tune the sound to your ears • Works with any wired or Bluetooth headphones and earbuds GREAT FOR • Following conversations at home, in cafés or the car • Hearing the TV at a volume comfortable for everyone • Seniors and anyone hard of hearing who wants to hear better MaxHear is a personal sound amplifier for everyday listening. It is not a hearing aid or a medical device, and is not intended to diagnose or treat any hearing condition. Subscription unlocks unlimited use. Start with a 3-day free trial, then yearly or monthly. Cancel anytime. Privacy Policy: https://maxhear.app/privacy Terms of Use (EULA): https://maxhear.app/terms

FixYourDeck turns your iPhone and a class-compliant USB audio interface into a complete measurement bench for cassette decks — the instruments a service workshop used to need a rack for. MEASURE • Frequency response 20 Hz – 20 kHz, both channels, with -3 dB bandwidth and chain-baseline subtraction • Wow & flutter to IEC 386 / DIN 45507 (weighted peak, weighted and unweighted RMS, wow/flutter split) with a flutter spectrum that names the worn rotating part • Speed error and long-term speed drift • Noise and signal-to-noise (flat, A-weighted, CCIR-468), MOL and SOL, dynamic range • Azimuth with live level, phase and inter-channel timing meters — set the azimuth of discrete heads with ease, using the special azimuth test tape or any well-recorded prerecorded tape • Diagnostics: modulation noise, crosstalk, erase efficiency, dropout counter ALIGN Guided assistants for bias (over-bias from the 10 kHz peak), record level / Dolby level, azimuth and playback alignment with a calibration tape — live meters you can turn a screwdriver against. TEST ANY DECK, EVEN A WALKMAN Record the self-describing Measurement Test Tape once on a good deck; each segment announces itself with a digital marker. Play it on any two-head deck or portable and the app grades frequency response, wow & flutter, speed drift and azimuth from playback alone — no monitoring head needed. DOCUMENT Every deck is a profile with its own calibration and saved sessions. Compare before and after service, and export one PDF — the Deck Measurement Protocol — with every value tabulated. TOOLS Oscilloscope (Y-T and Lissajous), tone generator, real-time 1/3-octave analyzer, level meters. WHAT YOU NEED A class-compliant USB audio interface with a stereo line input and output (e.g. a 2-in/2-out interface), cables to the deck's line in/out, and a blank tape. The speed check works with the built-in microphone alone. FREE AND PRO Speed and frequency measurement are free. FixYourDeck Pro — a one-time purchase, no subscription — unlocks all other measurements, the alignment assistants, diagnostics and protocol export. Made by cassette-deck restorers, in 16 languages. No account, no analytics, no data collection: everything stays on your device.