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An electronic whiteboard app for construction sites that lets you use a construction blackboard on your smartphone. It supports everything from taking construction photos to creating photo logs, exporting to CSV, ZIP, and PDF, and recording GPS data.

Extract colors from images. Identify names, Munsell values, save data and PDF.

AR Moon & Sun Tracker with moon phases, eclipses, sky map, and real-time data.

An offline business card management app. It doesn't save to the cloud, so you can rest assured. Quickly find the business cards you need with alphabetical tabs and multiple search filters. The perfect business card app for personal use.

A simple calculator that converts Korean won and Japanese yen. Rates are also updated daily.

Open and start inputting immediately. Edit later. This is a household account book designed for continued use. Keep track of your remaining balance and everything on one screen. Copy past entries with a tap. No login required. This is a completely free household account book.

This is a vocabulary app that allows you to learn Korean words equivalent to the Hangul Proficiency Test Level 5. It contains approximately 600 words. 20 multiple-choice questions allow for repeated learning. By repeating the questions until you can answer them correctly, you can be sure to remember the basic words.

This app auto-counts blue E. coli colonies, meets EPA, ISO, and global standards

Catch falling cats with a trampoline! Aim for a high score against quirky cats!

Change colors in real time with camera or photos using simple palettes.

A timer for 3 minute cup noodles. The timer starts as soon as the app starts.

Change the color of yakiniku to make it easier to check its doneness. A support app for people with color blindness and color blindness.

Memorize numbers and calculate instantly! This flash mental arithmetic training brain training game lets you complete quests and earn titles. You can set the number of digits and speed, making it a useful app for improving your calculation skills every day.

Simple OCR scanner. Save locally. Search fast with tags and PDF export.