# SciCalc82 vs DayCalc Pro

The clearest difference is price: SciCalc82 at Free against DayCalc Pro's $0.99. SciCalc82 also leads on in-app purchases (none vs 9) and iOS requirement (8.0 vs 15.0). DayCalc Pro's advantage is ratings volume (180 vs 19). On rating, review sentiment, update cadence and ads there is nothing between them.

SciCalc82 is free to download; DayCalc Pro costs $0.99 up front. DayCalc Pro sells 9 one-off in-app purchases. SciCalc82 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.6 for SciCalc82 against 4.6 for DayCalc Pro. That said, the two scores are not equally well evidenced: DayCalc Pro has 180 ratings behind it against 19, so its average is the more settled of the two. Written reviews split almost evenly too, at 86% and 86% positive.

SciCalc82 ships an update every 3 weeks, DayCalc Pro every 6 weeks. Both last shipped on October 23, 2026.

## The numbers

| Metric | SciCalc82 | DayCalc Pro |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.6 (19 ratings)](https://appshunter.io/ios/app/scicalc82/id590398877/reviews) | **[4.6 (180 ratings)](https://appshunter.io/ios/app/daycalc-pro-note-calculator/id654444242/reviews)** |
| Number of ratings | 19 | **180** |
| Positive reviews | **86.4% of reviews** | 85.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 8 MB | 98 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Paul SALANITRI](https://appshunter.io/developer/590398880) | [良峰 侯](https://appshunter.io/developer/654444245) |

## What reviewers say

### SciCalc82

[App page](https://appshunter.io/ios/app/scicalc82/id590398877)

Experience a scientific calculator designed with the authentic look and feel of the early 1980s. It offers familiar functions with added modern features for enhanced usability, including realistic key click sounds and an LCD display.

**Highlights:** Authentic 1980s design, Realistic key click sounds, LCD display simulation, Familiar functions, Modern usability enhancements, Quick help guide

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is SciCalc82 free?

SciCalc82 is free to download, with no in-app purchases.

### Is DayCalc Pro free?

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

### Which has better reviews, SciCalc82 or DayCalc Pro?

DayCalc Pro is rated higher. SciCalc82 averages 4.6 out of 5 from 19 ratings, while DayCalc Pro averages 4.6 from 180 ratings.

### Do SciCalc82 or DayCalc Pro have ads?

Neither SciCalc82 nor DayCalc Pro shows ads.

### Which is updated more often, SciCalc82 or DayCalc Pro?

SciCalc82 ships an update every 3 weeks, and DayCalc Pro every 6 weeks. Most recently, SciCalc82 was updated on October 23, 2026 and DayCalc Pro on October 23, 2026.

---

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