Showing 181–200 of 1,000 ranked alternatives.
Hidekazu Kato
Learn vocabulary, study , practice speaking
Learn vocabulary with natural example sentences, native audio, and detailed explanations. Practice using spaced repetition study mode. Access all content in one . No ads. One-time purchase.
Bernhard Klingenberg
Analyze and generate charts
Analyze categorical and quantitative with summary statistics, contingency tables, and correlation coefficients. Create bar charts, pie charts, histograms, boxplots, dotplots, and interactive scatterplots. Color scatterplot points by a third variable.
Zhijin Chen
Explore elements, formulas, and reactions
Access the periodic table with atomic weight, electronegativity, electron affinity, ionization energy, radius, and isotopes. Compare element properties. Search for compounds and reactions. View chemical equations and formulas.
Lu A Oo
Convert units with one tap
Convert units across 77 categories with over 1000 options. Perform multiple conversions on one screen. Add custom units and categories. Use built-in calculator and numeric keyboard. Convert complex measurements like height and weight between systems.
Venkat-Sathvik Konuganti
View LeetCode questions and progress
View Leetcode questions and solutions on mobile. progress with a clean interface. Learn Algorithms and Data Structures topics. Save and organize problem sets. Sync progress across devices.
Jewelsapps S. L.
Create and share GIFs and videos
Create animated GIFs, videos, or Live Photos by adding and trimming multiple videos, adjusting playback speed, and layering photos. Include text and export directly. No subscription required.
Holisticon AG
Facilitate group discussions and decisions
Provides access to , methods for fostering group participation and collaboration. Users can apply these techniques to meetings or projects. Features include guided prompts, discussion templates, and tools for facilitating inclusive dialogue.
Andrew McGee
Test acids and memorize their codes
Learn the 20 naturally-occurring acids through flashcards. View structured information tables or take quizzes to test knowledge. See structures, names, and codes. Use a simple interface with chalkboard-style visuals for easy study.
ams AG
Measure spectra with Bluetooth and battery power
Perform spectral analysis in the 750 nm to 1050 nm range using a 64-channel NIR sensor. Measure reflectance and absorbance for material identification. Include chemometric models for BRIX, Dry Matter, and cocoa content in fruits and chocolate.
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