---
title: "DayCalc - Note Calculator — App Overview"
url: https://marlvel.ai/intel-report/utilities/daycalc-note-calculator
category: Utilities
developer: 良峰 侯
platforms: ios, android
rating: 4.7 (124 ratings)
pricing: free
report_level: overview
generated: 2026-04-19
---

<!-- SECTION: Key Insight -->
> **Key Insight:** DayCalc provides a comprehensive, highly customizable calculation and conversion suite that emphasizes user-defined data and history management.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Utilities |
| Rating | 4.7 ★ (124) |
| Pricing | free |
| Platforms | iOS, Android |
| Latest Version (iOS) | 13.2 |
| Latest Version (Android) | 1.10.1 |
| Developer | 良峰 侯 |

<!-- SECTION: Summary -->
## What is DayCalc - Note Calculator?

DayCalc is a multi-functional utility app for iOS and watchOS that combines a scientific calculator with a customizable unit converter. It distinguishes itself by allowing users to annotate calculation history and create custom unit data categories.

<!-- SECTION: Key Features -->
## Key Features

- **Calculation History & Notes**: Users can add notes to calculation history, share results, and lock entries to prevent accidental modification.
- **Scientific & Basic Modes**: Offers a dual-mode interface with over 30 scientific operations and support for portrait, landscape, and split-screen layouts.
- **Customizable Unit Converter**: Includes over 600 units across 20 categories with the ability for users to input their own custom unit data.
- **Cross-Platform Integration**: Provides native support for iPhone, iPad, and Apple Watch, including integration with iOS Spotlight search.

<!-- SECTION: Target Audience -->
## Who is it for?

General users and professionals requiring a versatile, multi-platform tool for mathematical calculations and unit conversions.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/daycalc-note-calculator/id661506264?uo=4)
- [Google Play](https://play.google.com/store/apps/details?id=br.com.marcusvbp.daycalc&hl=en&gl=us)
- [Full Intelligence Report](https://marlvel.ai/intel-report/utilities/daycalc-note-calculator)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/intel-report/utilities/daycalc-note-calculator).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*