# DayCalc Pro vs e

The clearest difference is price: e at Free against DayCalc Pro's $0.99. e also leads on in-app purchases (none vs 9). DayCalc Pro's advantage is device support. On iOS requirement there is nothing between them.

e is free to download; DayCalc Pro costs $0.99 up front. DayCalc Pro sells 9 one-off in-app purchases. e asks for nothing beyond the download.

## The numbers

| Metric | DayCalc Pro | e |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.6 (177 ratings)](https://appshunter.io/ios/app/daycalc-pro-note-calculator/id654444242/reviews)** | — |
| Number of ratings | **177** | — |
| Positive reviews | 85.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 6 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 99 MB | 1 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | — |
| Age rating | 4+ | 4+ |
| Developer | [良峰 侯](https://appshunter.io/developer/654444245) | [Shijiazhuang Tonhe Electronics Technologies Co., Ltd.](https://appshunter.io/developer/1752035147) |

## What reviewers say

### DayCalc Pro

[App page](https://appshunter.io/ios/app/daycalc-pro-note-calculator/id654444242)

This app combines a powerful calculator with a comprehensive unit converter. It offers standard and scientific calculations, allows notes to be added to history, and supports a wide range of units and custom conversions. Enjoy a user-friendly interface with customizable themes and watchOS integration.

**Highlights:** Standard and scientific calculator, Add notes to calculations, Over 600 units in 20 categories, Custom unit creation, Automatic currency exchange rate updates, Dark Mode support, Apple Watch integration

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Constants Pack | $0.99 | one-time |
| Festivals Theme Pack 1 | $0.99 | one-time |
| Season Theme Pack 1 | $0.99 | one-time |
| Bird Theme Pack 1 | $0.99 | one-time |
| Insects Theme Pack 1 | $0.99 | one-time |
| Season Theme Pack 2 | $0.99 | one-time |
| Festivals Theme Pack 2 | $0.99 | one-time |
| Custom Unit Pack | $1.99 | one-time |
| Complete Pack | $4.99 | one-time |

**What reviewers like**

- 👍 Easy to use and intuitive interface
- 🎨 Customizable themes and colors
- 📊 Comprehensive feature set (scientific, fractions, conversions)
- 💰 Great value for price (free or $1)
- 📝 Useful history/tape feature for tracking calculations

**What reviewers complain about**

- 🐛 Update installation issues and stuck downloads
- 🐛 Display cutoff in landscape mode on smaller phones
- 🐛 Fraction display cuts off large numbers
- 🐛 Currency converter fails after favoriting
- 🐛 Copy function only copies first number

**Reported bugs**

- Latest update stuck on download/installation loop
- Display rendering issues in landscape mode on iPhone 12/13 mini
- Fraction results display truncated with large numbers
- Fraction operator placement incorrect during multi-step calculations
- Currency conversion broken after favoriting currencies

**Requested features**

- Cursor movement for easier digit and symbol editing
- Back button to delete individual numbers instead of clearing all
- History display directly above input without clicking
- Back button in converter functions for easier navigation
- Improved animated transitions for better aesthetics


### e

[App page](https://appshunter.io/ios/app/e-energy-plus/id6504376117)

**In-app purchases:** none


## Frequently asked questions

### Is DayCalc Pro free?

DayCalc Pro costs $0.99, and also offers in-app purchases.

### Is e free?

e is free to download, with no in-app purchases.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*