OmniCalc - Smart Calculator
Expression Calc with Notes
Free · Designed for iPad. Not verified for macOS.
A clean and powerful expression calculator with history notes, multi-page management, and 8 keyboard themes. All data stored locally to protect your privacy.
OmniCalc is a clean and powerful smart calculator designed for users who value calculation records and privacy.
【Core Features】
• Expression Calculator — Full math expression input with parentheses, percentages, and correct operator precedence
• Live Preview — See results instantly as you type
• History Notes — Add remarks to each calculation record for easy reference (e.g., travel expenses, meals)
• Operand Notes — Annotate individual numbers in an expression to record what each amount represents
• One-Tap Sum — Automatically total all results on the current page
【Calculation Page Management】
• Multi-Page — Organize calculations by project or scenario
• Search & Filter — Search by title and notes, filter by date range
• Share Records — Export calculation records as images
【Customization】
• 8 Keyboard Themes — Classic, Ocean, Forest, Sunset, Violet, Sakura, Midnight, Mint
• Appearance — Light / Dark / System
• Precision Control — Custom decimal places (0–10), thousands separator, scientific notation
• Interaction Feedback — Key sound and haptic feedback can be toggled independently
【Multi-Language】
Supports 13 languages including English and Simplified Chinese. Switch interface language anytime.
【Privacy First】
All data is stored locally on your device. No network connection required. No personal data collected. No ads or third-party tracking.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, 飞龙 杨, 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
- 飞龙 杨
- Size
- 1.1 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 Simplified Chinese
- Age Rating
4+
- 4+
- Copyright
- © 2026 Flynn. All rights reserved.