# Halcyon Calc Lite vs Plottron

Halcyon Calc Lite and Plottron both sit at 4.7 stars, but that hides the real split: 100% of Plottron's written reviews are positive against 43% of Halcyon Calc Lite's. Plottron also leads on in-app purchases (none vs 3) and ads (none vs shown). 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. Plottron asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Halcyon Calc Lite against 4.8 for Plottron. Both are backed by a comparable volume of ratings — 15 and 12 respectively. Written reviews are what separate them: 43% of Halcyon Calc Lite's written reviews are positive against 100% of Plottron's.

Halcyon Calc Lite ships an update every 3 months, Plottron every 5 months. The most recent releases landed on August 29, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Halcyon Calc Lite | Plottron |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (15 ratings)](https://appshunter.io/ios/app/halcyon-calc-lite/id408004888/reviews) | **[4.8 (12 ratings)](https://appshunter.io/ios/app/plottron/id1037723649/reviews)** |
| Number of ratings | **15** | 12 |
| Positive reviews | 42.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 13 MB | 2 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Halcyon Touch Software](https://appshunter.io/developer/327064662) | [Billy Lin](https://appshunter.io/developer/1037723648) |

## 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 |


### Plottron

[App page](https://appshunter.io/ios/app/plottron/id1037723649)

This application offers advanced 2D and 3D graphing capabilities for various function types, alongside a comprehensive scientific calculator. It supports implicit graphing, complex number visualization, and symbolic differentiation. The calculator includes user-defined variables, live evaluation, and probability density functions.

**Highlights:** 2D and 3D graphing, Implicit graphing, Complex number visualization, Symbolic differentiation, User-defined variables and functions, Live evaluation, Calculation history

**Features:** macOS Compatibility, Vision Pro support

**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 Plottron free?

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

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

Plottron is rated higher. Halcyon Calc Lite averages 4.7 out of 5 from 15 ratings, while Plottron averages 4.8 from 12 ratings.

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

Halcyon Calc Lite shows ads; Plottron does not.

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

Halcyon Calc Lite ships an update every 3 months, and Plottron every 5 months. Most recently, Halcyon Calc Lite was updated on August 29, 2026 and Plottron on September 14, 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.*