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313 apps · Showing 97–192

Learning & Reference

313 apps

Learning & Reference: Sky & Science

Sunrise & Sunset Calculator

Calculate sunrise, sunset, and daylight length from a date and coordinates.

Learning & Reference: Countries & Travel

Country Calling Code Finder

Find the international phone prefix for any country, or search a prefix to see possible countries.

Country Comparison Tool

Compare two countries side by side by area, region, currencies, languages, and borders.

Country Currency Finder

Find the currency name, code, and symbol used by any country.

Country Fact Finder

Look up a country's capital, region, codes, currencies, languages, area, and neighbours.

Country Language Finder

See the listed languages and native country names for any country.

Plus Code Decoder

Decode a full Plus Code into its center coordinates and covered area.

Plus Code Generator

Turn latitude and longitude into a shareable Plus Code that works without a street address.

Learning & Reference: Everyday Checks

IBAN Checker & Formatter

Check an IBAN's country structure and checksum, then format it into readable groups.

International Phone Number Checker

Check whether an international phone number has a possible and valid shape, then format it clearly.

ISBN Checker & Converter

Validate ISBN-10 or ISBN-13, add correct hyphens, and convert between book-number formats.

Phone Number Country Finder

Find the likely country and calling code for an international phone number.

Learning & Reference: 3D Chemistry

3D Atom Color Explorer

Learn the common colors used for carbon, hydrogen, nitrogen, and oxygen atoms.

3D Molecule Viewer for Kids

Turn, zoom, and compare familiar molecules in a clear interactive 3D lab.

Caffeine Molecule 3D Explorer

Turn the 24 atoms in a caffeine molecule and see its two joined rings.

DNA Base 3D Explorer for Kids

Meet adenine, one of the four letter-like bases that help make DNA.

Molecule Shape Explorer for Kids

Compare straight, bent, flat, pyramid, and tetrahedron molecule shapes.

Molecule Style Switcher for Kids

Switch one molecule between balls, sticks, filled atoms, and simple lines.

Learning & Reference: 8-Bit Learning Arcade

Fact or Fiction Arcade for Kids

Read quick science, math, and everyday statements, choose fact or fiction, and learn from each helper.

Kindness Combo Maker for Kids

Load a small kindness idea, draw another when it does not fit, and mark the move when it is done.

Pixel Mood Check-In for Kids

Choose calm, happy, tired, worried, frustrated, or excited and get one small, safe next step.

Reading Power-Up Tracker for Kids

Choose a text, read for five minutes, notice one idea, and tell or write what happened.

Screen Break Timer for Kids

Choose a short break, use the large timer, look far away, blink, and return when your eyes and body feel ready.

Spelling Blaster Game for Kids

Use a clue and sound-part hint to type useful words, fix mistakes, and fill the word power bar.

Study Level Planner for Kids

Gather tools, read directions, finish one part, check one answer, and choose what comes next.

Times Table Arcade for Kids

Practice friendly times-table questions, get a clear helper after a miss, and fill an 8-bit power bar.

Typing Speed Run for Kids

Type positive sentences, see live accuracy, and earn points for matching every letter and mark.

Learning & Reference: Accessibility Tools

Calm Motion Comparer for Kids

Try a simple fade, small rise, or soft pulse while keeping device motion settings on.

Learning & Reference: Accessible Reading

Hyperlegible Reading Preview for Kids

Preview a short passage with distinct letter shapes, large type, and roomy lines.

Large-Print Reading Card Maker

Turn a short direction, reminder, or fact into a clear large-print card.

OpenDyslexic Reading Preview

Preview your own passage in OpenDyslexic and choose the size and spacing you prefer.

OpenDyslexic Reading Ruler for Kids

Highlight one line, then move the reading ruler up or down through a short passage.

Spaced Reading Card Maker for Kids

Adjust letter, word, and line spacing to make a reading card that feels comfortable.

Learning & Reference: Animals & Nature

Animal Fact Flipbook for Kids

Choose the forest, ocean, or grassland and discover six quick animal facts.

Learning & Reference: Animation Makers

Motion Path Animation Planner for Kids

Follow a star or dot along a high arc, a wave, or a loop to learn how paths guide motion.

Learning & Reference: Astronomy & Satellites

Eclipse & Conjunction Calendar

Make an astronomy calendar of eclipses, Moon phases and planetary alignments. Search events and check their dates.

Planet Visibility Explorer

Find when planets are above your horizon. Compare rise and set times, sky positions and dark hours for your location.

Satellite Orbit Viewer

Plot satellite orbits from your own TLE data. Follow ground tracks and compare height, speed and viewing angles over time.

Satellite Pass Planner

Find satellite passes above your location using TLE data. See sky paths and estimated light conditions at each peak.

Learning & Reference: Astronomy Services

Ephemeris Comparison Desk

Compare Sun, Moon and planet positions from two JPL models. Chart their differences and download the positions for your chosen time.

Observing Night Planner

Plan a night of stargazing. Compare target heights, dark hours and distance from the Moon, then export your observing windows.

Learning & Reference: Biological Sequences

Sequence Alignment Viewer

Compare two short DNA sequences. Line up their bases and inspect matches, differences and gaps.

Sequence Format Converter

Convert biological sequence files between supported formats. Choose input and output formats and download the new file.

Learning & Reference: Classroom Helpers

Classroom Answer Reveal Maker for Kids

Make one short math, science, or quiz answer flip, fade, or zoom into view.

Learning & Reference: Classroom Printables

Accessible Classroom Handout Maker

Make a one-page lesson or direction sheet with clear type and a simple response area.

Learning & Reference: Classroom Supports

Quick Classroom Whiteboard for Kids

Use a light grid to sketch an answer, solve a problem, explain your thinking, or plan with boxes and arrows.

Learning & Reference: Classroom Tools

Classroom Demo Stop-Motion for Kids

Capture a fraction model, bridge build, or sorting activity and replay every step for the class.

Classroom Scenario Builder for Kids

Make a safe choice story about teamwork, learning, or solving a class problem.

Ink Classroom Decision Story for Kids

Turn a classroom problem into a coded story with teamwork points.

Whiteboard Stop-Motion Maker for Kids

Add a few marks between pictures to reveal a word, math idea, or map route clearly.

Learning & Reference: Coding Concepts

Button State Prototype for Kids

See how a button can look when it is ready, hovered, pressed, and finished without running code.

Learning & Reference: Coding Helpers

Animate.css Class Helper for Kids

Choose and preview an effect, then copy the real Animate.css class names for a project.

Learning & Reference: Comics & Characters

Comic Book Report Maker for Kids

Tell the setting, problem, and lesson with comic characters.

Comic Feelings Sequence for Kids

Build four panels that move from one feeling to another.

Learning & Reference: Communication

Classroom Choice Board for Kids

Choose art, music, a book, a game, a ball, or a bike with one clear tap.

Feelings Communication Board for Kids

Tap a big face to share happy, sad, angry, worried, tired, or calm feelings.

Needs Communication Board for Kids

Tap a clear picture to ask for a drink, food, help, the bathroom, rest, or a talk.

Learning & Reference: Countries & Cultures

Country Calling Code Finder for Kids

Type the digits after a plus sign and see which countries use that calling code.

Country Facts Explorer for Kids

See a country's flag, capital, continent, languages, money, and calling code.

World Currencies Explorer for Kids

Pick a currency and see its name, symbol, code, and places that use it.

World Languages Explorer for Kids

Pick a language, read its local name, and see countries where it is listed.

Learning & Reference: Creative Coding

Turtle Code Drawing Playground

Give a turtle a few simple commands and watch it draw a bright picture one line at a time.

Turtle Coordinate Path Builder

Send the turtle to x and y points and see those coordinates join into a clear path.

Turtle Polygon Maker

Choose the number of sides and see how forward steps and equal turns make a polygon.

Learning & Reference: Daylight Tables

Daylight Comparison Tool

Compare daylight length, sunrise, and sunset between two dates at the same location.

Monthly Daylight Table

Build a full month of sunrise, sunset, twilight windows and daylight durations for one place.

Weekly Daylight Table

Build a seven-day sunrise, sunset, and daylight table from one starting date.

Learning & Reference: Ear Training

Piano Interval Jump Trainer for Kids

Hear small and wide note jumps, then copy each pair on the piano.

Learning & Reference: Feelings & Friendship

Friendship Choice Story Maker for Kids

Show how listening, inviting, and kind words can change what happens next.

Ink Friendship Dialogue Practice for Kids

Practice listening and kind replies in a safe story that remembers choices.

Learning & Reference: Fraction Tools

Fraction Area Model Maker for Kids

Split a bar into halves, fourths, or eighths, color some pieces, and add a fraction label.

Learning & Reference: Geometry Tools

Angle Sketch Lab for Kids

Draw and move two rays to explore acute, right, and obtuse angles on a large grid.

Coordinate Plane Drawing Tool for Kids

Use four quadrants to make a point picture, mark coordinates, or plan a route across a grid.

Geometry Construction Animator for Kids

Watch a triangle, hexagon, or set of angles grow from clear construction lines.

Geometry Construction Board for Kids

Make a shape house, matching halves, or a repeating pattern on a clear square grid.

Learning & Reference: Grammar & Words

Noun Verb Adjective Checker for Kids

See whether a word can work as a noun, verb, adjective, or adverb.

Word Jobs by Meaning for Kids

Sort a word's meanings into noun, verb, adjective, and adverb jobs.

Learning & Reference: History Learning

History Decision Story Maker for Kids

Turn a past challenge into a story that compares different decisions.

Learning & Reference: Language & Calendars

Braille Byte Decoder

Decode text from eight-dot braille byte patterns. Restore text made with a matching byte encoder; this is not a braille translator.

Braille Byte Encoder

Encode text bytes as eight-dot Unicode braille patterns. This reversible code is not a translation into readable braille.

Braille Dot Cell Explorer

Explore the eight dots of a Unicode braille cell. Choose raised dots and see the matching character and byte value.

Nepali Calendar Maker

Make a month of Nepali BS dates with corresponding Gregorian dates and weekdays.

Nepali Date Converter

Convert a calendar date between Gregorian AD and Nepali Bikram Sambat BS, with English and Nepali output.

Phonetic Spelling Helper

Spell names, reference numbers, and short messages with the NATO phonetic alphabet.

Radio Spelling Practice

Practise NATO phonetic code words with a scored quiz, immediate feedback, and downloadable results.

Learning & Reference: Language & Words

American and British Spelling Explorer for Kids

Compare spellings that share a meaning and read the region labels on them.

Learning & Reference: Learn to Code

Ink Story Tag Explorer for Kids

Add hidden story tags and watch the live player reveal each label.

Ink Story Variable Lab for Kids

Change numbers and true-or-false flags to see how story memory works.

Learning & Reference: Learning Quests

Chore Level-Up Chart for Kids

Check off a few useful home jobs, add your own chore, and watch a simple hero level grow.

Classroom Team Quest Board for Kids

Track shared jobs for taking turns, hearing every voice, finishing a goal, and cleaning the team space.

Confidence Shield Builder for Kids

Build a short reminder from a strength, helpful thought, next move, and shield symbol.

Daily Kindness Quest for Kids

Pick a safe, free kindness idea for an ordinary day and celebrate when the small quest is done.

Healthy Habit Hero for Kids

Track water, enjoyable movement, helpful food, and sleep preparation without chasing perfection.

Homework Quest Board for Kids

Break homework into clear missions, finish one step at a time, and build a simple experience bar.

Math Monster Battle for Kids

Solve addition, subtraction, multiplication, division, and halving puzzles to fill a victory bar.

Reading Adventure Timer for Kids

Choose a five, ten, fifteen, or twenty minute reading quest and track one calm session.