About TCool LTD
Useful software.
Made with purpose.
TCool LTD is an independent app studio focused on specific, everyday problems: saving something for later, seeing a small detail, measuring an angle, or making a device work the way you need.
Small tools. Clear purpose.
Our collection spans iOS and Android. Each product has its own job, device requirements, and feature set. We explain those differences so you can choose the right tool, not just another download.
Clarity is part of the product.
We link directly to official store listings, explain compatibility limits, and provide practical support. Privacy practices differ between products and platforms; check each app’s store disclosure rather than assuming every app behaves the same way.
All TCool apps
View all apps
Otoscope Pro
A private inspection workspace for compatible Wi‑Fi otoscopes.
iOS, Android
DropCarry
A temporary inbox for notes, links, photos, and files.
iOS
TesDisplay
Mirror your phone screen to your Tesla display.
iOS, Android
Rotation Fix
Lock or rotate your screen with one tap — automatically per app.
Android
Presentation Clicker
Turn your Android phone into a Bluetooth slide remote.
Android
Chop Flashlight
Double-chop to toggle your flashlight, even with the screen off.
Android
Physical Keyboard Test & Fix
Find and fix the wrong keyboard layout on Android.
Android
Angle Finder & Protractor
Measure angles from your camera, photos, or a digital protractor.
iOS, Android
Scan Print Labels
Scan and print labels with a DYMO LabelWriter 450.
Android
No JavaScript
Choose where JavaScript runs in Safari.
iOS