K vs LED Board

K-Card Reader is a focused Korean transit card balance checker for iPhone. Tap a supported physical KS X 6924 card with NFC to read practical details such as card family, card number, stored balance, issue date, valid-through date, recent trips, and local transaction history where the card exposes it. It is built for travelers, residents, and anyone who wants a quick way to check T-money, EZL/Cashbee, Climate Card, NAMANE, MOIBA, or K-Cash without hunting through station machines. Saved cards stay on your iPhone for fast review. Pro Mode is an optional $2/year subscription that removes ads, unlocks the hex parsing view, and backs up saved cards plus custom card-face images with your iCloud account. This is an unofficial utility and is not affiliated with transport operators, card issuers, or payment networks. It cannot top up cards, issue tickets, validate fares, or modify card data. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

An LED board with no ads in it. Type anything and the phone turns into an LED panel. The text is not simply made big: every glyph is redrawn dot by dot, so Korean, Japanese, Cyrillic and emoji all come out as real LEDs. THE BOARD • Dot-by-dot rendering, lit and dark LEDs like a real panel • Scroll left, scroll right or stand still • Speed and text size to taste • Mirror mode for holding it behind glass • Turn the phone sideways and the whole long edge becomes the board THE CHEER LIGHT • A glowing bar in your own colour • Steady, pulse, blink, rainbow, wave • Put a name or a word under the light • Deliberately generic: no group's official light stick is reproduced THE FLASH (BOARD PRO) • Any tempo between 40 and 200 BPM • Strobe, fade, colour change, rainbow BOARD PRO (ONE PAYMENT, NO SUBSCRIPTION) • Saved messages, with their colour and size, ready for the next show • Twelve palettes, your own colour picker, square and diamond dots • Flash mode and the extra cheer light patterns WHAT THIS APP DOES NOT DO No ads. No account. No access to your location, contacts or photos. It works with no connection at all and sends nothing anywhere. The only thing stored is the messages you keep, on this device. PLEASE NOTE Full screen turns the display up to full brightness: the battery drains faster and the phone can get warm. You can switch that off in Settings. Fast flashing is uncomfortable for some people. Warn those around you and skip the flash if anyone is sensitive to flashing light. At a venue, follow what the organisers ask - some places limit lights and filming.