# Thetis Tools vs OpsPlan LCT50 Calculator

The clearest difference is update cadence: OpsPlan LCT50 Calculator at every 2 months against Thetis Tools's every 7 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Thetis Tools ships an update every 7 months, OpsPlan LCT50 Calculator every 2 months. The most recent releases landed on October 5, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Thetis Tools | OpsPlan LCT50 Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (7 ratings)](https://appshunter.io/ios/app/opsplan-lct50-calculator/id1610678922/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 50 MB | 54 MB |
| Requires iOS | **14.0** | 14.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thetis srl](https://appshunter.io/developer/397584184) | [Operation Plans Solutions, LLC](https://appshunter.io/developer/1610678924) |

## What reviewers say

### Thetis Tools

[App page](https://appshunter.io/ios/app/thetis-tools/id1460268980)

**Features:** macOS Compatibility

**In-app purchases:** none


### OpsPlan LCT50 Calculator

[App page](https://appshunter.io/ios/app/opsplan-lct50-calculator/id1610678922)

Calculate LCT50 times for chemical agent deployment missions. Define room dimensions, set time limits or munitions, and select specific agents to ensure team safety and mission success.

**Highlights:** Calculate LCT50 times, Define room dimensions, Set time limit or munitions, Select specific munitions, View time limit summary, Easy-to-use interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Thetis Tools free?

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

### Is OpsPlan LCT50 Calculator free?

OpsPlan LCT50 Calculator is free to download, with no in-app purchases.

### Do Thetis Tools or OpsPlan LCT50 Calculator have ads?

Neither Thetis Tools nor OpsPlan LCT50 Calculator shows ads.

### Which is updated more often, Thetis Tools or OpsPlan LCT50 Calculator?

Thetis Tools ships an update every 7 months, and OpsPlan LCT50 Calculator every 2 months. Most recently, Thetis Tools was updated on October 5, 2026 and OpsPlan LCT50 Calculator on October 21, 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.*