Jdragon

Margin rate (Net Profit/Cost)

Jdragon

Prime Factorization

Jdragon

Fraction: Automatic Calculator

Jdragon

Divisor (GCD/LCM calculator)

Jdragon

Scoreboard-Horizontal/Vertical

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Click One- RandomBox/Draw lots

Jdragon

illuminometer-Brightness check

Jdragon

Vote (O/X majority voting)

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Protractor+Telescope/Magnifier

Jdragon

2,4star

Coin Flip: Coin Toss-Head/Tail

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Celsius Fahrenheit Kelvin

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Buddhism 108 bows- 108 counter

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Trigonometry (Trigonometric)

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Light-Flashlight+Burn-in check

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Circle (area/circumference)

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Standard deviation(statistics)

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Division (quotient/remainder)

Jdragon

Heraing - Hearing aid battery

Jdragon

Number Pick (number selection)

Jdragon

Dustbin ( Unused app remover)

Jdragon

4,1star