Every calculator and converter you need, in one app. 101 tools, 21 home screen widgets, three languages. Zero ads, zero in app purchases, fully offline. No ads.
iConverter, 101 tools in one pocket.
Everyday calculations and conversions, in one app. No ads. A thank-you tip is optional. There is no tracking. Offline work stays on your device.
Why keep it on the Home Screen
Check BMI, convert a recipe, format JSON, compare a mortgage, then look up a family title. Nine categories, 101 tools, open and ready.
Calculators, 3
Standard, Scientific, and Programmer. Programmer mode covers decimal, hex, octal, and binary, bitwise operations, and 8, 16, 32, or 64 bit word sizes. All three share one history.
Finance, 7
Mortgage covers a standard loan, a combined commercial and housing-fund loan, and LPR. Prepayment compares a shorter term with a lower payment. Resale taxes cover deed tax, income tax, VAT, and agency fee.
Date and time, 9
Age, date math, lunar calendar from 1900 to 2100, solar terms, countdown, due date, cycle tracking, world clock, and zodiac. Add a countdown to Calendar. Pick a city from the map.
Math, 7
Percentage, fractions that simplify themselves, prime factors with GCD and LCM, quadratic equations, statistics, permutations, combinations, and geometry.
Code and utilities, 25
HTTP requests, JSON, JWT, Cron, IP and subnets, regex, passwords, random numbers, Base64, URL encode and decode, hashes, bank card check, QR codes, Roman numerals, timestamps, word count, color and palettes, text case, text diff, Morse, an ASCII table, file download, and a web browser.
QR codes can be created or scanned. History stores each text once, up to 100, apart from calculator history. Tap an entry to restore format, style, color, and error correction. Lists omit WiFi passwords and one-time secrets. Saving can be turned off.
Life, 15
BMI can use the China adult standard or WHO. Also here: BMR, clothing and ring sizes, height, fuel cost, shipping, blood alcohol, kinship, ID parsing, coin flip, dice, a random draw, a spinner, and video frames.
Sensors, 4
Compass shows true and magnetic north and bearing; location is asked only when opened. Level needs no extra permission. Altitude uses location and the barometer, and the current spot can become the baseline. Magnifier uses the rear camera with zoom, flashlight, and freeze frame.
Chinese, 3
Numbers convert to formal Chinese characters and back. Invoice amounts have their own form, with an optional exact-sum ending.
Unit conversion, 27 categories
Length, area, volume, weight, temperature, time, speed, pressure, energy, power, force, torque, frequency, angle, data storage, transfer rate, illuminance, magnetic flux density, radioactivity, viscosity, fuel economy, flow rate, density, magnetic flux, absorbed dose, equivalent dose, and amount of substance.
Lock Screen and Dynamic Island
On iPhone with iOS 17 or later, calculator, unit conversion, countdown, coin flip, dice, and kinship can stay on the Lock Screen and in the Dynamic Island. Countdown ticks for the last 8 hours. Tap to return with the result. Shortcuts or iconverter://liveactivity/ links can start or end a card without opening the app. On iOS 18, Watch and CarPlay show an icon and one line.
Widgets, 21
Fourteen fit the Lock Screen. New small and large sizes keep medium widgets you already placed. World clock, countdown, lunar calendar, BMI, mortgage, compound interest, and temperature gain a small or large size. Discount, tip split, and fuel cost gain small. Date math gains large.
Details
English, Simplified and Traditional Chinese. Up to 4 Home Screen quick actions, 12 alternate icons, and 12 accent colors. Search the menu and change its grid columns. Tap a result to copy it. iOS 15 or later. Widgets and Live Activities need iOS 17. Without Mail, feedback copies the address and a brief diagnostic note.
Privacy
No ads and no tracking. A thank-you tip is optional. Nearly every tool works offline. Network requests and the browser go online only when you use them.
iConverter is meant to be the tool you open every day.
Ratings & Reviews
This app has not received enough ratings or reviews to display an overview.
iConverter v1.11.0 Major Update
1. Live Activity from Shortcuts: put calculator, any of 27 unit converters, countdown, coin flip, dice, or kinship on the Lock Screen and Dynamic Island without opening the app. End one card or all tool cards from Shortcuts. Try Siri, or a link such as iconverter://liveactivity/calculator. The Shortcuts guide in Help walks you through it.
2. Calculator tape display: every step stays in a scrollable multi-line list, so long work is never cut off with dots. Long-press to copy the full expression. Auto-scroll follows your latest line, or tap the chevron to jump back. New settings for list size and follow-latest. Care Mode shows the same step-by-step layout.
3. Dynamic Island refresh: see your running formula and live preview on the island while you type. Clearer summaries for units, countdown, coin totals, dice rolls, and kinship chains. Expanded layout and steadier compact numbers. Island keys update in the background, so taps feel instant instead of bouncing you into the app.
4. Help updated: Shortcuts, usage, and widget guides now cover background Live Activity starts and deep links.
Still no ads. Work that can stay on your device still does.
If you enjoy iConverter, please rate it on the App Store and send feedback in the app. Thank you for your support.
Version 1.11.0
The developer, 天从 何, 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.
Privacy practices may vary based, for example, on the features you use or your age. Learn More
The developer indicated that this app supports the following accessibility features. Learn More
Supported Features
Larger Text
Dark Interface
Sufficient Contrast
Information
Provider
天从 何
Size
20.5 MB
Category
Utilities
Compatibility
Requires iOS 15.0 or later.
iPhone Requires iOS 15.0 or later.
iPad Requires iPadOS 15.0 or later.
iPod touch Requires iOS 15.0 or later.
Mac Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.