Calculo: Equation Calculator
VAT, Tax, Scientific & Math
Free · In‑App Purchases
Type your math the way you think it — and see the answer appear instantly. Notepad meets calculator. 213 units, 180+ live currencies, variables, templates.
Calculo is a smarter way to calculate.
Instead of punching buttons, you type. Math, notes, and answers — all on one screen, in plain language.
Type 100 USD to EUR and get today's live exchange rate. Type x = 5 and use x in every line that follows. Type 15 kg to lbs and convert instantly. Calculo reads what you write and evaluates it — line by line, as you type.
WHAT YOU CAN DO
Math that reads like writing
Type expressions naturally — 2 + 3, sqrt(144), 2^10 — and see results appear instantly, right beside your text.
Unit conversion — 213 units
Weight, length, temperature, volume, speed, data, duration, angles, and more. Just write 5 miles to km or 98.6°F to celsius.
Real-time currency conversion
180+ currencies with live rates. Convert with symbols, names, or ISO codes — $500 to ¥, 420 EUR to GBP, or 100 rubles to usd.
Variables
Store values and reference them by name. Write tax = 0.2, then price + price * tax — Calculo handles the rest.
Templates
Build reusable calculation sheets with editable inputs and live outputs. Tap Play, fill in the numbers, get the answer. Perfect for recurring tasks: VAT, mortgage, tip splits, unit costs.
Graphs
Visualize arrays as line graphs directly on the canvas. Define a range, write an expression, see the curve.
Organized notes
Create multiple notes, organize them into folders, and search across everything. Your calculation history lives where you left it.
FREE — NO REGISTRATION REQUIRED
Download and start calculating immediately. No account needed.
Notepad calculator with inline results
Unit conversion — 213 units
Real-time currency conversion — 180+ currencies
Variables and natural language input
A single saved note
PREMIUM — UNLOCK EVERYTHING
Unlimited notes — no cap, ever
Templates — build and run reusable calculation sheets
iCloud sync — seamlessly across iPhone, iPad, and Mac
Face ID lock — protect sensitive notes with biometric security
Custom color themes — personalize syntax highlighting to your taste
Try Premium free for 7 days. Cancel anytime.
WORKS ON
iPhone · iPad · Mac
Home screen widget included.
Subscription info
Premium is available as a monthly or annual subscription. Payment is charged to your Apple ID at confirmation. Your subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your Account Settings. Any unused portion of a free trial is forfeited upon purchase.
Privacy Policy: https://calculo.tech/privacy_policy
Terms of Service: https://calculo.tech/terms_of_use
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Liquid glass adoption
- Bug fixes
The developer, Illia Senchukov, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Illia Senchukov
- Size
- 13.8 MB
- Category
- Productivity
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later. - Mac
Requires macOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
User-Generated Content
- In-App Purchases
Yes
- Premium Yearly $29.99
- Premium Monthly $4.99
- Premium Lifetime $69.99
- Copyright
- © Illia Senchukov
