Showing 281–300 of 1,000 ranked alternatives.
City Of Houston
Report issues with GPS and photos
Report issues like potholes, broken traffic signals, or graffiti by capturing photos and using GPS to locate the issue. Submit service requests directly to the city’s 311 system for review and resolution.
Shanghai Mashang Yunxing Technology Co., Ltd.
Convert units, calculate formulas, solve equations
Offers basic and scientific functions for daily tasks and complex computations. It includes unit converters with 41 categories, allowing users to drag and sort units, switch base units, and perform accurate calculations.
Lars Hansen
Learn flags, morse code, and spelling
Learn flag signals and their meanings with interactive quizzes and explanations. Practice Morse code and flag alphabets in multiple languages. Send and receive semaphore signals with visual guides for both sending and receiving.
koji kamogawa
Input Morse code to defend and advance
Learn Morse code by repelling invaders through correct input. Increase speed as levels progress. Eliminate multiple invaders at once for higher scores. Receive penalties for errors. Game ends when invaders fill the screen.
Ronald Nicholson
Decode FT8 signals from audio input
Decode FT8 signals from audio or SDR sources. Support Level 1 decoding for standard callsigns or 13-character text. Generate FT8 message audio for testing. View decoded messages and metadata.
Daniel Kiefer
Launch instantly
Light, Morse and Strobe offers control with three modes: torch for basic lighting, Morse code for sending signals, and strobe for flashing patterns. Users can toggle the on and off quickly.
koji kamogawa
Practice CW QSOs and send Morse code
Simulate amateur radio CW QSOs with contest-style operations. Input Morse code using an electric touch keyer. Switch between transmit and receive with a send button. Adjust CW speed and reverse dot/dash settings. Display TX/RX status.
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