# Halcyon Calc Lite vs Simple Shell

The clearest difference is review sentiment: Halcyon Calc Lite at 67% against Simple Shell's 0%. Halcyon Calc Lite also leads on price (Free vs $1.99) and update cadence (every 3 months vs every 40 months). Simple Shell's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

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

Simple Shell holds the better App Store score, 5.0 against 4.7. 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 complicate that: 67% of Halcyon Calc Lite's written reviews are positive against 0% of Simple Shell's, so the app with the better star average is not the one people write more warmly about.

Halcyon Calc Lite ships an update every 3 months, Simple Shell every 40 months. Both last shipped on September 30, 2026.

## The numbers

| Metric | Halcyon Calc Lite | Simple Shell |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [4.7 (15 ratings)](https://appshunter.io/ios/app/halcyon-calc-lite/id408004888/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/simple-shell/id1531607361/reviews)** |
| Number of ratings | **15** | 1 |
| Positive reviews | **66.7% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 40 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 13 MB | 19 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) | [ASHER SYED](https://appshunter.io/developer/546996396) |

## 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 |


### Simple Shell

[App page](https://appshunter.io/ios/app/simple-shell/id1531607361)

This utility app offers a secure and efficient SSH client for iOS devices. It provides a cost-effective alternative for remote terminal access, based on an open-source project.

**Highlights:** SSH client functionality, Mosh protocol support, Remote terminal access, Cost-effective alternative, iOS compatibility

**Features:** 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 Simple Shell free?

Simple Shell costs $1.99, with no in-app purchases.

### Which has better reviews, Halcyon Calc Lite or Simple Shell?

Simple Shell is rated higher. Halcyon Calc Lite averages 4.7 out of 5 from 15 ratings, while Simple Shell averages 5.0 from 1 ratings.

### Do Halcyon Calc Lite or Simple Shell have ads?

Halcyon Calc Lite shows ads; Simple Shell does not.

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

Halcyon Calc Lite ships an update every 3 months, and Simple Shell every 40 months. Most recently, Halcyon Calc Lite was updated on September 30, 2026 and Simple Shell on September 30, 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.*