# Halcyon Calc Lite vs ExSciCalc

The clearest difference is price: Halcyon Calc Lite at Free against ExSciCalc's $1.99. Halcyon Calc Lite also leads on ratings volume (15 vs 1). ExSciCalc's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support there is nothing between them.

Halcyon Calc Lite is free to download; ExSciCalc costs $1.99 up front. Halcyon Calc Lite sells 3 one-off in-app purchases. ExSciCalc asks for nothing beyond the download.

ExSciCalc holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Halcyon Calc Lite has 15 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 67% of Halcyon Calc Lite's written reviews are positive against 100% of ExSciCalc's.

Halcyon Calc Lite ships an update every 3 months, ExSciCalc every 3 weeks. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Halcyon Calc Lite | ExSciCalc |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [4.6 (15 ratings)](https://appshunter.io/ios/app/halcyon-calc-lite/id408004888/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/exscicalc/id1625177287/reviews)** |
| Number of ratings | **15** | 1 |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 13 MB | 1 MB |
| Requires iOS | 16.6 | **14.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Halcyon Touch Software](https://appshunter.io/developer/327064662) | [Dale C Koepp](https://appshunter.io/developer/331525420) |

## What reviewers say

### Halcyon Calc Lite

[App page](https://appshunter.io/ios/app/halcyon-calc-lite/id408004888)

This app is a powerful calculator for students and professionals, offering advanced features like symbolic expression manipulation, graphing, and statistical analysis. It supports real, complex, and integer numbers, matrices, and vectors, making it versatile for various mathematical tasks.

**Highlights:** Symbolic expression manipulation, Graphing of expressions, Matrix and vector calculations, Statistical analysis, Multiple number formats (decimal, hex, octal, binary), Over 225 built-in operations

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Directory And Unit Conversion Support | $0.99 | one-time |
| Programming Support | $1.99 | one-time |
| Larger Display Upgrade | $1.99 | one-time |


### ExSciCalc

[App page](https://appshunter.io/ios/app/exscicalc/id1625177287)

This calculator offers enhanced precision and memory beyond standard devices. It includes advanced functions for statistics, physics, and mathematics, alongside common calculations and unit conversions.

**Highlights:** Extended precision (30+ digits), Extended memory (main + 10 auxiliary), Scroll windows for button access, Statistical calculations, Physical and mathematical constants, Unit conversions, Roots of equations, Special relativity calculations

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Halcyon Calc Lite free?

Halcyon Calc Lite is free to download, with in-app purchases available.

### Is ExSciCalc free?

ExSciCalc costs $1.99, with no in-app purchases.

### Which has better reviews, Halcyon Calc Lite or ExSciCalc?

ExSciCalc is rated higher. Halcyon Calc Lite averages 4.6 out of 5 from 15 ratings, while ExSciCalc averages 5.0 from 1 ratings.

### Do Halcyon Calc Lite or ExSciCalc have ads?

Halcyon Calc Lite shows ads; ExSciCalc does not.

### Which is updated more often, Halcyon Calc Lite or ExSciCalc?

Halcyon Calc Lite ships an update every 3 months, and ExSciCalc every 3 weeks. Most recently, Halcyon Calc Lite was updated on October 27, 2026 and ExSciCalc on October 24, 2026.

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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.*