200+ units across 10 categories. 150 currencies with live rates. Works perfectly offline — no signal, no problem. Zero ads. Zero account. Just answers.
Built for travelers, engineers, students, chefs — anyone who needs quick, reliable answers without friction.
Every unit conversion works with zero internet. Currency rates are cached locally after the first sync. Works in airplane mode, underground, in the middle of nowhere — wherever you are, Vortex works.
Live exchange rates cached for offline use. Compare your amount across 10 currencies simultaneously with Compare Mode.
See one value converted into ALL units of a category at once. Perfect for cooking, travel planning, and engineering.
Your last conversion right on your home screen. Updates automatically every time you copy a result.
Every result you copy is saved. Browse, reuse, swipe to delete — never lose a calculation again.
Type in either field. Swap with one tap. Results update in real time — no calculate button needed.
No banners, no interstitials, no "upgrade to remove ads." Vortex is free and clean, exactly as an app should be.
Open, convert, done. No sign-up, no email, no tracking. Your data stays on your device, always.
Every unit you'll ever need, instantly at your fingertips.
Make Vortex yours. From deep AMOLED black to ocean blue, forest green, aurora, crimson, and gold rush amber.
🔒 Pro themes unlock with Vortex Pro — $2.99 one-time purchase, no subscription
Secure payment via Google Play · No hidden fees · Restore on any device