twinkle × AI
Tools you need,
a look you love.
Starting with everyday needs, refining function and design together.
An AI lab where independent developer twinkle works with AI. We experiment with ideas and build products we want to use ourselves.
Shine in your own way.TWINKLE AI LABS
01 THE COLLECTION
A little ease in everyday life.
- 01 / PDF tools

Pocket PDF
Documents in order. A little room in your day.Scan, merge and split: a small document toolkit that works on your device.
Android · PDF toolsExplore the app - 02 / Investment calculationsNew average cost Example66,285.71KRWHold 20 shares+Add 15 shares→Total 35 shares

Stock Average Calculator
Clearer numbers before your next choice.Calculate a new average or work back from a target before buying more.
Android · Investment calculationsExplore the app - 03 / Tools

APK Extractor
ProductionSave and share your installed apps as APK files.
Android · ToolsExplore the app - 04 / Tools

Light Mirror
DevelopmentA pocket mirror using your front camera, with zoom, lighting and a freeze-frame view you can save as a photo.
Android · ToolsExplore the app
02 THE STARTING POINT
A user’s perspective, a maker’s care.
Finding the right features was possible. Finding an app I wanted to keep using was harder.
It started with small frustrations in tools I used every day. I wanted to bring useful features and a design I enjoyed together, in apps I would want to use myself.
Solo developer twinkle and AI experiment with ideas and turn them into products. Apps, websites, and characters such as 몽글숑 emerge along the way. When a new idea calls, we explore it without limiting ourselves to a particular field.
Start with a need
Everyday friction and the limits of familiar tools give us a reason to build.
Function meets feeling
Clear features and comfortable screens. How an app feels matters as much as how it works.
Refine through use
Daily use and user feedback help us make each tool a little better.
03 OUR DESIGN LANGUAGE
Different apps. A familiar feel.
Aurora Ledger.
A familiar, comfortable feel across apps that do different things.
Deep violet, subtle light, readable type and space to breathe. Aurora is the shared design language connecting Twinkle AI Labs products.
Explore the design storyLet attention settle naturally on what matters.
Switch between Mist and Dusk to explore both moods.
BETTER APPS, TOGETHER
Tell us what’s on your mind as you use the apps.
The moments you enjoy and the things that could be better. Both are a starting point for the next improvement.
Send feedback twinkle.ai.labs@gmail.com