All-In-One: Calculator
What is All-In-One?
Scientific calculator with 50+ other calculators and unit converters, including a currency converter.
All-In-One Calculator is a Productivity app that combines a scientific calculator with graphing, memory, and history features. It also includes math, finance, date and health calculators, plus unit and currency converters. The currency converter covers 160+ currencies with live exchange rates and works offline.
Pricing. All-In-One is free to download, with in-app purchases on the App Store.
Good for
- Converting units such as length, weight, volume, or cooking measures
- Converting currencies across 160+ currencies, including offline use
- Calculating tips, sales tax, loan interest, or unit price comparisons
Screenshots
Why this app is in A tier
A tier follows from that score within this list. The full explanation, as data.
All-In-One scores 87 out of 100: rating 95, rating count 60, App Store search rank 100, update recency 95. The four parts are averaged and A tier follows from that score within this list.
Description
All-In-One Calculator combines a clean scientific calculator with 50+ calculators and unit converters for everyday use. Get more from your calculator - for FREE!
Trusted by over 10 MILLION users worldwide!
Scientific calculator
- Trigonometry, logarithms, exponents
- Graphing calculator: plot functions
- Complex number support (√-1 → i)
- Fraction results (0.3333 → 1/3)
- Memory buttons: MC, M+, M-, MR
- Calculator history with notes
Currency converter
- 160+ currencies, live exchange rates
- Convert multiple currencies at once
- Works 100% offline
Unit converter
Read more
- Length, weight, volume, temperature
- Area, speed, pressure, power, energy
- Digital storage, cooking, shoe size
- Regional, historic & scientific units
- Combined units (ft + in, L + mL)
Math calculators
- Percentage calculator & discount
- Average & proportion calculator
- Equation solver: linear, quadratic, etc.
- Area & volume of shapes and bodies
- Step-by-step solutions
Finance calculators
- Tip calculator & sales tax calculator
- Loan & interest calculator
- Unit price comparison
Date & health
- Age calculator & date calculator
- Time between two dates
- BMI, body fat & calorie calculator
Extra features
- Cloud sync across your devices
- Calculator widget for your home screen
- Simple, classic & modern layouts
- AMOLED dark theme to save battery
A note from the developer
Hi, I'm Andrei, the developer behind this app. My goal since 2016 has been to create the most comprehensive, clean and easy-to-use calculator on the market, continuously improving it based on your feedback.
Try it out and let me know what you think!
Terms of use
https://www.apple.com/legal/internet-services/itunes/dev/stdeula
Compare
All-In-One
Calculator #
Calculator with History Tape
Calculator +
Fraction Calculator Plus #1Top Calculation
Recently Updated
Questions about All-In-One
Is the app free?
The app is free to download.
Does the currency converter work without internet?
The currency converter works 100% offline, and also mentions live exchange rates for conversions.
Does it include a graphing or equation solver?
It has a graphing calculator that plots functions and an equation solver for linear, quadratic and other equations, with step-by-step solutions.
Is All-In-One right for me?
All-In-One is built for converting units such as length, weight, volume, or cooking measures, converting currencies across 160+ currencies, including offline use, calculating tips, sales tax, loan interest, or unit price comparisons. It sits in the calculation list on AppTierList.
Is All-In-One worth it?
All-In-One is A tier, ranked #15 of 40 calculation apps with a score of 87 out of 100, from a 4.8 App Store rating across 97 ratings. It is in the list's top tiers; 14 apps rank above it.
How does All-In-One compare to Calculator with History Tape?
All-In-One is A tier at 87; Calculator with History Tape is A tier at 89. Calculator with History Tape ranks higher. All-In-One is free to download, with in-app purchases, Calculator with History Tape is free to download, with in-app purchases.
How often is All-In-One updated?
All-In-One was last updated on 2026-08-13, 94 days ago.
Alternatives
Top rated in Calculation
Categories
All the facts
Ranking
- Lists
- Calculation (A tier, #15) · Unit Conversion (B tier, #14) · Scientific Calculation (B tier, #27) · Currency Conversion (C tier, #32)
- Tier
- A (Excellent)
- Score
- 87 / 100
- Rank in list
- #15 of 40
- Ranking certainty
- settled
Ratings
- App Store rating
- 4.8 out of 5, every App Store country
- Ratings
- 97
App
- Price
- Free + IAP
- App Store category
- Productivity
- Current version
- (94 days ago)
- Size
- 97 MB
- Requires
- iOS 16.0 or later
- Age rating
- 4+
- Languages
- 52
- Runs on
- iPhone, iPad
Links
- Developer pages
- Website · Support · Privacy policy
- Maker
- not verified
- As data
- JSON · why it ranks here
App Store data read · ranking