Not Another Twin Calculator
Dual Calculator
Two clean calculators side-by-side, so you can compare numbers, transfer results between panels, and keep moving. No clutter, no unnecessary features.
$1.99
Dual Calculator
Two clean calculators side-by-side, so you can compare numbers, transfer results between panels, and keep moving. No clutter, no unnecessary features.
$1.99
Calculate your share on one side, your friend's on the other. No switching back and forth.
Unit price on the left, total on the right. See which deal is actually better.
Original measurement on one side, converted value on the other.
Do the same calculation twice. Make sure you got it right.
One tap moves results between calculators. No copy-paste needed.
Each calculator keeps its own calculation history.
Add, subtract, multiply, divide. The essentials, done right.
iPhone, iPad, Mac, and Apple Vision. One purchase, all devices.
Share with up to 6 family members at no extra cost.
No data collection. No accounts. Just math.
"Most calculators keep adding 'features' that slow you down. This one stays focused: quick, readable, and practical."
Get Not Another Twin Calculator for just $1.99. No subscriptions, no ads.