TipCalc
Fast, straightforward tip calculations with easy percentage comparisons, clear totals, and a layout designed for your phone.
Google Play listing link coming soon.
Independent software studio
Software built for the real world.
Pennington Labs creates practical, easy-to-use apps that solve everyday problems. Thoughtful tools, built with purpose.
What we're building
Small tools. Real impact.
We believe good software should make everyday tasks simpler, not more complicated.
Built around real needs
We're developing practical utilities and specialized applications, with an emphasis on clarity, reliability, and useful features.
Have a question? Get in touch →From the lab
Ideas behind the code.
Exploring productivity, problem-solving, and what it means to build thoughtfully in the age of AI.
Speed isn't the whole story.
Why writing code faster doesn't always mean making better progress.
Read article →A 1990s book meets modern programming.
What an older approach to problem-solving can teach us about software and AI today.
Read article →Pennington Labs / Off the screen
Made for curious minds.
A small collection of code-inspired ideas, coffee rituals, and developer humor. A storefront is in the works; these are previews, not products available to order yet.
Original design · Shirt
Collect moments, not just commits.
const memories = [];
Real photos of our original front-and-back shirt. A little JavaScript, a lot of life.
THE LIFELONG LEARNER
Design idea · Shirtwhile (alive) {
keepLearning();
}Keep building. Keep learning.The Lifelong Learner
Understated code for people who never stop learning.
COFFEE & CODE
Design idea · Mugcoffee === true
&& code === truePowered by curiosity.Coffee & Code
A simple idea for the desk, the morning, and the next build.
Let's connect
Have something in mind?
Questions, feedback, or ideas? We'd love to hear from you.
Contact Pennington Labs