Showing 121–140 of 1,000 ranked alternatives.
TLA Systems Ltd.
Calculate, convert, and program with precision
Perform complex calculations with support for hexadecimal, octal, and binary. Use RPN mode and multi-line display. Access unit conversions, scientific constants, and engineering notation. Enable multiple undo and redo. View results on a paper tape.
ImagiRation LLC
Solve problems offline
Provides free exercises without ads or external contact. Features include a patented interface that reduces trial-and-error, no setup or registration, and offline functionality.
Naturedigger LLC
Identify monarchs and report sightings
Identify butterflies across all life stages and distinguish from look-alikes. Learn about milkweed species and their role in development. Report sightings to contribute to scientific research.
Monterey Bay Aquarium Research Institute
Monitor ocean conditions and jellyfish populations.
The app monitors ocean conditions and jellyfish populations. Users can submit reports and photos of jellyfish blooms, red tides, and normal conditions for analysis and species identification.
QApps LLC
Calculate, convert, and solve equations
Perform complex calculations with scientific formulas and unit conversions. Access calculation history via Spotlight and 3D Touch. Use widgets for quick access and history integration. Sync with Apple Watch for notifications and basic calculations.
HALICI BILGI ISLEM SANAYI VE TICARET A.S.
Train cognitive skills with games
Improve cognitive skills through games in verbal, quantitative, visual, logical, memory, and attention categories. Track progress with personalized exercises based on performance. Receive feedback on strengths and areas for improvement.
The Adler Planetarium
Contribute to scientific research
The Mobile allows users to participate in citizen science projects. Contribute to research by classifying data, analyzing images, and transcribing historical documents. Receive push notifications for new tasks and updates.
A & A Design Inc.
Calculate concentrations and ratios
Calculate reconstitution volumes using water estimates. Determine mixing ratios for various sequences. Perform bacteriostatic water calculations for stability. Input molecular weights and concentrations for accurate results.
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