Apps Like Spectrogram Pro (with super-smooth 60Hz update) for iPhone and iPad
Analyze sound and visualize spectra
Perform real-time spectral analysis of sounds. View images with adjustable FFT-resolutions, frequency and amplitude scales, and color schemes. Save and share spectrograms. Access bode plot modes with averaging and maximum calculations.
Spectrogram Pro (with super-smooth 60Hz update) screenshots
Ranked alternatives
Showing 561–580 of 1,000 ranked alternatives.


IB Math HL & SL
George Feretzakis
Learn with video lessons and calculators
Access video lessons and use multiple calculators and solvers for IB . Review topics for Higher Level, Standard Level, Applications and Interpretation, and Analysis and Approaches. Track progress with practice questions and exam-style problems.

ACT Math : Super Edition Lite
Webrich Software Limited
Practice problems and review notes
Practice with over 1510 questions and 151 revision notes covering Algebra, Geometry, Data Analysis, and Number & Operations. Take mock tests with mixed questions. Review detailed solutions and notes for each topic.


TDIH: This Day In History
Alexandru Muresan
Explore historical events and trivia
Explore historical events, birthdays, and deaths from around the world. Receive daily updates and trivia. View detailed facts and dates. Share content via social media. Save favorite entries for later review.


singing bowl test
薇 张
Sounds and detect frequency
Sound frequencies with adjustable error range. Detect pitch, intonation, and interval of sounds. Compare frequency measurements for accuracy. Save and analyze sound data for musical analysis.

Moku:
Liquid Instruments Pty Ltd
Measure, record, and analyze signals
Allows users to perform advanced signal analysis with an oscilloscope and spectrum analyzer. It enables waveform generation, data logging, and frequency response testing. Users can control PID systems, build filters, and analyze laser stability.



SPL
Andrew Smith
Professional sound level meter app.
The app provides professional-grade sound level measurement for iPad, iPhone, or iPod touch. It includes modes like Slow, Fast, Impulse, Peak, and Leq, along with A and C weighting and 10 octave band filters.


Surgical Anatomy of the Lung
Emory University
Plan surgeries, calculate capacity, stage cancer, view
Capacity can be assessed using interactive tools. Cancer staging includes detailed descriptions and illustrations. 3D viewer allows hiding and showing structures. Tumors can be placed interactively in models. Anatomical illustrations are provided.




RST Decoder
koji kamogawa
Decode Morse code from your microphone
Decode Morse code from microphone input. Practice sending codes and check accuracy. Adjust signal strength and speed for better decoding. Sync with 5-10 characters for accurate timing.
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