Calculator & Editor: Freestyle
History · Units & FX Converter
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Stop pressing equals — results appear as you type. Edit any expression mid-flow, convert units and currencies, and never lose a calculation. Try it.
Freestyle Calculator gives you real-time expression editing on iPhone and iPad.
Start typing and watch the result update live — no equals button needed. Move the cursor anywhere in your expression, edit freely, and the preview adjusts instantly. Every calculation is saved with a searchable, annotated history.
CORE FEATURES (FREE)
▸ Real-time preview — see results as you type
▸ Expression editing — backspace, insert, or reposition the cursor
▸ Searchable history — pin, copy, annotate, or reuse any calculation
▸ Unit conversion — length, mass, area, volume, temperature, time
▸ Reference exchange rates — three providers with automatic fallback
▸ Widgets — exchange rates and formulas on your home and lock screen
PRO FEATURES
▸ Keyboard Studio — rearrange keys, save multiple layouts (Compact / Standard / Scientific)
▸ Theme Studio — 10 keyboard themes, accent colors, key density, dark mode
▸ Custom Formulas — reusable workflows with variables and live FX rates
▸ Sessions — organize work into named groups with notes and pins
▸ Cloud Sync — back up everything to iCloud, restore on any device
Free forever: real-time preview, full history, unit conversion, and scientific keys. No ads, no accounts, no server dependency. Your data stays on your device by default.
Privacy Policy: https://apps.foamzou.com/freestyle-calculator/privacy/
Terms of Use: https://apps.foamzou.com/freestyle-calculator/terms/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Added a new "Copy after =" option. Choose no copy, result only, or expression and result.
- Fixed a bug in scientific calculations.
- Made a few usability improvements.
The developer, 锋 邹, 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 Linked to You
The following data may be collected and linked to your identity:
- Purchases
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 锋 邹
- Size
- 18.1 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 22 more
- English, Amharic, Arabic, Bengali, Czech, Dutch, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Thai, Traditional Chinese, Turkish, Urdu, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- CalcStudio Pro Lifetime $0.00
- CalcStudio Pro Monthly $0.99
- Small Tip $0.99
- Large Tip $9.99
- Medium Tip $3.99
- CalcStudio Pro Annual $3.99
- Copyright
- © 2026 Foam Zou