Apps by 554 limited company

Music Intro Quiz 3.1.1

PAID
Energize your party with the new "Game Host" mode feature in the hit Music Intro Quiz app! You decide when to play the intro! You let contestants know the results with a "correct" chime or "wrong" buzzer! Also in response to many requests, users...

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Geiger Calc 1.3

FREE
Instead of using Geiger Calc, are you still calculating accurate measurements of Ionizing radiation with pen and paper? Now no more need. Geiger Calc will become your assistant and do your calculation and recording for you. If you are using old...

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Wild One 1.2.1

PAID
The HyperCard stack masterpiece Unyo! is back after 20 years as an iPhone app! For those of us who experienced the dawn of personal computing, this game evokes both a sense of both nostalgia and novelty! The same "look and feel" of that addictive...

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Kazehakase fu-ring bank - Edo (Edo glasses) & Setomono 1.2

PAID
The ultimate sound. Welcome to the world of the wind chimes (Fu-ring, Japanese wind chimes) soundscape of "Kazehakase". Have some experiences the particular vibrations of 1/f sound which is produced with the combination of the Fu-ring and some nature...

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