# Calcu vs Lorexis

The clearest difference is in-app purchases: Calcu at none against Lorexis's 1. Calcu also leads on iOS requirement (13.0 vs 16.4). Lorexis's advantage is update cadence (every 3 days vs every 6 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Lorexis sells 1 one-off in-app purchase. Calcu asks for nothing beyond the download.

Calcu ships an update every 6 weeks, Lorexis every 3 days. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Calcu | Lorexis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/calcu-gator/id6761209063/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 days** |
| Monetization | Free | — |
| Size | 16 MB | 52 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Joe Watson](https://appshunter.io/developer/1888278003) | [Yuki Nakashima](https://appshunter.io/developer/1847581340) |

## What reviewers say

### Calcu

[App page](https://appshunter.io/ios/app/calcu-gator/id6761209063)

This unofficial player aid assists with hit calculations for robot battle games. Easily input values, sum categories, and calculate hit probability based on dice rolls. Customize your experience with multiple color options.

**Highlights:** Input values for categories and robots, Sum all category values, Calculate hit probability, 2d6 dice roll simulation, Multiple color themes

**In-app purchases:** none


### Lorexis

[App page](https://appshunter.io/ios/app/lorexis/id6775690017)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lorexis Premium | $1.99 | one-time |


## Frequently asked questions

### Is Calcu free?

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

### Is Lorexis free?

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

### Do Calcu or Lorexis have ads?

Neither Calcu nor Lorexis shows ads.

### Which is updated more often, Calcu or Lorexis?

Calcu ships an update every 6 weeks, and Lorexis every 3 days. Most recently, Calcu was updated on October 7, 2026 and Lorexis 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.*