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Store listing
By JONGWOO PARK, from the App Store
Description by JONGWOO PARKWritten by the developer, not by AppBrain. Click to read.
A smart calculator that works like math notes.
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Just type "price = 12000" and you're done. Calto is a free smart calculator that lets you write naturally like a math notepad while showing results in real-time.
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Why Calto?
Regular calculators just show numbers. But real-life calculations are more complex.
- Planning a trip budget and splitting expenses - Converting currencies while budgeting - Calculating tips, discounts, or freelance rates
Calto handles all of this naturally, like taking notes.
# Percent & Tip Calculator 20% of 5000 = 1,000 15% tip on 85 = 12.75
Discounts, tips, split bills. Type what you think.
# Crypto Calculator 1 BTC in USD = 97,500 0.5 ETH in EUR = 1,650
Live cryptocurrency rates. Track your crypto portfolio.
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Perfect For
- Trip budgeting and expense tracking - Freelancers calculating rates and invoices - Quick tip calculator and bill splitter - Real-time exchange rate conversions - Anyone tired of basic calculators
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Privacy First - Offline Calculator
- All calculations stored on device only - Works offline - no internet required for basic math - Only anonymized usage statistics collected (for service improvement) - No account required
Download this free calculator now and experience math notes done right.
Safety and technology
Found in the app by AppBrain
Price
Free
App size
29.6 MB
Content rating
Everyone
Technologies used by Calto: Note Calculator
Releases
Updates seen on the App Store
Version
1.8.0
Launched
February 2026
No changelog data
Rankings
App Store top charts
App Store Rankings for Calto: Note Calculator
This app is not ranked
About the app and developer
About Calto: Note Calculator
Calto: Note Calculator is a productivity app developed by JONGWOO PARK.
User Ratings
The app has no ratings yet.
App Information
Calto: Note Calculator is freely available from the App Store. The app size is 29.56 MB. The latest version available is 1.8.0. The last update was on September 15, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since February 2026.
Calto: Note Calculator is made and published by
JONGWOO PARK.
AppBrain is an independent app data site and isn't affiliated with JONGWOO PARK.
The app name, icon, screenshots and description belong to JONGWOO PARK and are shown as published on the App Store.
Each subscription will automatically renew 3 days before the expiration date for
the same time period. Subscriptions can be cancelled at any time before the renewal.
