# Halcyon Calc Lite vs GraphCalcPro2Go

The clearest difference is ads: GraphCalcPro2Go at none against Halcyon Calc Lite's shown. GraphCalcPro2Go also leads on review sentiment (80% vs 67%). Halcyon Calc Lite's advantage is iOS requirement (16.6 vs 18.6). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Halcyon Calc Lite sells 3 one-off in-app purchases and GraphCalcPro2Go sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Halcyon Calc Lite against 4.6 for GraphCalcPro2Go. Both are backed by a comparable volume of ratings — 15 and 40 respectively. Written reviews are what separate them: 67% of Halcyon Calc Lite's written reviews are positive against 80% of GraphCalcPro2Go's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 15, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Halcyon Calc Lite | GraphCalcPro2Go |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (15 ratings)](https://appshunter.io/ios/app/halcyon-calc-lite/id408004888/reviews)** | [4.6 (40 ratings)](https://appshunter.io/ios/app/graphcalcpro2go/id1091870099/reviews) |
| Number of ratings | 15 | **40** |
| Positive reviews | 66.7% of reviews | **80.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 13 MB | 9 MB |
| Requires iOS | **16.6** | 18.6 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Halcyon Touch Software](https://appshunter.io/developer/327064662) | [Starware Software LLC](https://appshunter.io/developer/988250389) |

## 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 |


### GraphCalcPro2Go

[App page](https://appshunter.io/ios/app/graphcalcpro2go/id1091870099)

This advanced scientific calculator offers ultra-high precision and a wide range of functions, replicating expensive handheld devices with added iOS capabilities. It supports both standard and RPN modes, includes built-in constants, and syncs across devices via iCloud. Users can also create graphs and share calculations.

**Highlights:** Ultra high precision and range, Standard (in-fix) and RPN modes, Built-in constants and unit conversions, iCloud sync across devices, Create and share graphs, Apple Watch compatibility

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | one-time |


## Frequently asked questions

### Is Halcyon Calc Lite free?

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

### Is GraphCalcPro2Go free?

GraphCalcPro2Go is free to download, with in-app purchases available.

### Which has better reviews, Halcyon Calc Lite or GraphCalcPro2Go?

Halcyon Calc Lite is rated higher. Halcyon Calc Lite averages 4.7 out of 5 from 15 ratings, while GraphCalcPro2Go averages 4.6 from 40 ratings.

### Do Halcyon Calc Lite or GraphCalcPro2Go have ads?

Halcyon Calc Lite shows ads; GraphCalcPro2Go does not.

### Which is updated more often, Halcyon Calc Lite or GraphCalcPro2Go?

Halcyon Calc Lite ships an update every 3 months, and GraphCalcPro2Go every 3 months. Most recently, Halcyon Calc Lite was updated on October 15, 2026 and GraphCalcPro2Go on September 29, 2026.

---

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