ConvCalc App Store
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Calculators on iOS look terrible. This one doesn't.

ConvCalc is a free scientific calculator with 20 built-in tools for units, currency and everyday math. Native to iPhone, with no ads anywhere.

Download free on the App Store The keys on this page work. Try them.

One app instead of a folder of them

Tap any tool to open it on the phone. The tools and the math are the same as in the app.

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Scientific keys
Scientific keysTap the corner key to open trig, logs, powers, factorials and constants. Tap again to put them away.
History
HistoryEvery result is saved. Tap one to bring it back into your calculation.
Currency
CurrencyType an amount and watch the other currencies follow.
Loan
LoanEnter the amount, rate and years. See the monthly payment and total interest.

Free. No ads. On your iPhone in ten seconds.

Download free on the App Store