Type it the way you'd say it.
Most converters make you pick a category, then a unit, then another unit, before they show you a number. UnitSnap reads the line the way you actually write it — and answers as you type.
No menus. No categories. Just the line.
Every input UnitSnap accepts begins with a number or a currency symbol — so the keyboard opens on digits, and the box already has focus when the app opens. Two taps removed before you've done anything.
Hundreds of units
Length, weight, volume, area, speed, temperature, pressure, energy, data and fuel economy — with the pairs people actually use put first.
Money, honestly dated
160+ currencies, and the rate's age said in words: “Live rate, fetched a moment ago”, or “Cached rate from yesterday, not today's.” Never just a date you have to do arithmetic on.
The way recipes are written
1 1/2 cups. 3/4 tsp. 5'11". 350f. If a person would write it that way, it parses.
It asks when it can't know
“180 pounds” could be weight or British pounds. UnitSnap offers both, guesses neither — then remembers which you meant so it never asks twice.
Reverse in one tap
Any answer flips and rebuilds the query from the result, targeted at the unit you started from.
Preferences that stick
400 g answers in ounces, which is right for a recipe and wrong for a parcel. Tap pounds once and grams answer in pounds from then on.
Currency that tells you how old the number is.
Type “4800 yen” or “40 usd in eur” and it answers in the same breath as everything else — no separate mode, no second app. 160+ currencies, from the European Central Bank's published reference rates.
Freshness in words
“Live rate, fetched a moment ago.” “Cached rate from yesterday, not today's.” You never have to work out for yourself how stale a number is.
Works with no signal
The last rates it fetched stay on the device and the app says plainly that it is using them. Useful on a plane. More useful abroad.
Flip in one tap
Reverse keeps the amount you typed and swaps the currencies — “1 USD in EUR” becomes “1 EUR in USD”, rather than converting the answer you just got.
A few health units, for when they come up.
Some numbers only ever show up in two different systems — one on a printout, the other on a reference chart. UnitSnap converts those the same way it converts everything else: type the number, read the answer. It is a small part of the app rather than the point of it.
UnitSnap is a unit converter. It is not a medical device and not a clinical decision tool. It converts units and derives values from the numbers you type. It does not recommend a dose, a diagnosis or a course of treatment, and it is not intended for use in patient care. Anything that matters should be checked against an authoritative source.
It collects nothing. Not “anonymised” — nothing.
Your pins, preferences, remembered choices and history stay on the device. The only request UnitSnap ever makes is for published exchange-rate reference data, and it sends nothing about you when it makes it.
One purchase. That's the whole model.
Pay once. No subscription, no advertising, nothing else to buy, and no feature held back for a second purchase.
Coming soon to the App Store