Fun with logic gates. Learn and play with the 6 basic logic gate types AND, OR, XOR, NAND, NOR, and NOT. Either individual gate behavior with a Logic Card, or multiple gate chaining into a simple circuit with truth table using a Circuit Card. A simple fun educational experience. This is minimalist by design with no ads, no in-app purchases, no pro buy-up version, no data collection or profiling... - More info on MiniLogic...

A short-term memory tester/exerciser. Three words are presented either audibly or visually, then a distractor exercise is provided, and finally you try to re-enter those same three words for comparison. Settings are provided to customize many behaviors. For entertainment value only. Not for serious use. This app is minimalist by design with no ads, no in-app purchases, no Pro buy-up version, no ... - More info on 3-Word Recall...

A random item from an internal curated list of sayings, some with a hint of humor, to which you can contribute. A random item is displayed from an internal curated list of sayings, proverbs, quotes, idioms, oxymorons, palindromes, and more, some with a hint of humor, to which you can contribute. - A button is provided if you wish to display another or long press to go back to previous. - A tappab... - More info on Random Saying...

Helpful to plan and budget your money, SaveSpend3 calculates Savings, or Social Security Accumulation vs filing age, or Spending over time. Earnings/interest, inflation, and taxes are included in the calculations as appropriate. Monte Carlo random variation can optionally be applied to earnings/interest and/or inflation and averaged over multiple runs. Results can be viewed in a table or as a char... - More info on SaveSpend3...

Read Quickly is a speed reading flashcard app to flash a value onscreen and then you must enter it. You can customize the flash time, size, length, case, and choose words and/or numbers. For entertainment value only. There is no score keeping or judgement, just self satisfaction. This app is minimalist by design with no ads, no in-app purchases, no bells and whistles, and no fancy graphics to di... - More info on Read Quickly...

Make your own custom calculator. Enter your own formula, for example calculating tip splitter, compound interest, dosage calculator, ROI estimator, or any formula such as y = ax + b. Your calculator can then be named and saved for future use. This is minimalist by design with no ads, no bells and whistles, and no fancy graphics to distract you, just utility with your own custom calculators. © 2... - More info on MakeCalc...

Function curve fitting using custom function that you enter. Reads data values either from file or manual entry, and tries to fit your function to the data by adjusting 1 to 4 parameters for a least-squares best fit. For enjoyment only, NOT for serious data needs. This is minimalist by design with no ads, no in-app purchases, no bells and whistles, and no fancy moving graphics to distract you, ju... - More info on Function Fitter...

Simple math problems where you must tap the correct answer before time expires 10 times in a row. You can set the speed interval between 1 and 10 seconds. This is minimalist by design with no ads, no in-app purchases, no bells and whistles, and no fancy moving graphics to distract you, just fun. Note: Entertainment value only, fun challenging your brain.... - More info on Math Quickly...