Clean Screen Apps
EspañolSmall, focused Android apps for work and hobbies. They work offline, keep your data on your phone, and show one small banner at the bottom — never pop-up or video ads.
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TrueSquare Calc — Construction
Feet-inch, stairs, rafters, concrete and 20+ job-site calculators.
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TrueOffset — Pipe & Conduit
Pipe offsets, rolling offsets and mitered elbows, with drawings.
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Punchwise — Time Card & Hours
Punch clock and time card: hours, overtime and pay.
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Bracket Maker: Round Robin
Brackets, round robins and pickleball mixers for any number of players.
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Cups to Grams Converter
Cups to grams by ingredient, recipe scaler, pan sizes and oven temperatures.
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Dog & Animal Pregnancy Tracker
Due dates for dogs, cats and livestock, plus egg hatch calendars.
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Crochet Calculator & Counter
Row counter for every project, yarn and blanket calculators, hook sizes.
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Subwoofer Box Design & Wiring
Sub box size, port length, cut sheet, wiring to 1 ohm and amp wire gauge.
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Card Game Score Keeper
Score sheets for Mexican Train, Spades, Hand & Foot, Canasta, Farkle and more.
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Resin & Epoxy Mix Calculator
Epoxy for a table or mold, A:B by volume or weight, and 2-stroke fuel mix.