The Simple Series

Small, focused apps built to do one thing well.

Simple Series (premium apps), Simple Apps (experiments that may graduate), Simple Games, Simple Tools, Simple Codes, Simple Shortcuts

Calculator

Age Calculator

Calculates age based on birth date and current date

Bayes' Theorem Calculator

Calculates Bayes' Theorem for updating belief based on test results

BMI Calculator

Calculates BMI based on height and weight

Car Ownership True-Cost Calculator

Calculates true cost of car ownership

Converter

Base64 Encoder/Decoder

Encode and decode Base64 text

Binary / Hex / Decimal Converter

Converts binary, hex, and decimal numbers

Hash Generator

Generate MD5 and SHA-256 checksums for text or files

Huffman Coding / Compression Visualizer

Visualize Huffman Coding and compression

Developer tool

Bayesian Network Builder

Builds Bayesian Networks with node probability settings

Turing Machine Simulator

Simulates a Turing Machine in the browser

Planner

Best-Call-Time Finder for Family Abroad

Find the best time to call family abroad without waking them

Caregiving Tracker

Track caregiving tasks and medications for recipients

Daily Journal / Gratitude Prompt Generator

Generates daily journal and gratitude prompts

Daily Movement/Water Reminder

Reminds you to move and drink water throughout the day

Reference

Decision Journal

Log and review decisions with confidence levels and categories

Etymology Explorer

Look up the etymology of a word

Family Recipe Archive

Store and manage family recipes with tags and notes

Family Tree Builder

Build and export a family tree

Trainer

Comedy Timing Trainer

Practice comedy timing with a punchline cue trainer

Custom Text Typing Trainer

Custom text typing practice trainer

Perceptron Visualizer

Interactive visualizer for a single-neuron trainable classifier

Second-Order Thinking Prompter

Generates prompts for second-order thinking

Utility

App Directory

Collection of small calculators and converters for everyday use

Argument Mapping Tool

Build, visualize, and analyze argument structures

Backwards Day Translator

Reverses text, letters, words, or sentences

Tip & Bill Splitter Pro

Split bills and calculate tips

More apps join the series on October 19.