# CGT Orano Tricastin vs HydroCalc Basic

The clearest difference is in-app purchases: CGT Orano Tricastin at none against HydroCalc Basic's 1. HydroCalc Basic's advantage is ads (none vs shown) and update cadence (every 11 days vs every 14 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. HydroCalc Basic sells 1 one-off in-app purchase. CGT Orano Tricastin asks for nothing beyond the download.

CGT Orano Tricastin ships an update every 14 months, HydroCalc Basic every 11 days. The most recent releases landed on October 25, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | CGT Orano Tricastin | HydroCalc Basic |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 14 months | **Every 11 days** |
| Size | 46 MB | 35 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [CGT Orano R Melox](https://appshunter.io/developer/1583022892) | [Transparent Blue Water LLC](https://appshunter.io/developer/1847968351) |

## What reviewers say

### CGT Orano Tricastin

[App page](https://appshunter.io/ios/app/cgt-orano-tricastin/id1584779601)

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

**In-app purchases:** none


### HydroCalc Basic

[App page](https://appshunter.io/ios/app/hydrocalc-basic/id6752577110)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - Flow Units & Ad-Free | $1.99 | one-time |


## Frequently asked questions

### Is CGT Orano Tricastin free?

CGT Orano Tricastin is free to download, with no in-app purchases.

### Is HydroCalc Basic free?

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

### Do CGT Orano Tricastin or HydroCalc Basic have ads?

CGT Orano Tricastin shows ads; HydroCalc Basic does not.

### Which is updated more often, CGT Orano Tricastin or HydroCalc Basic?

CGT Orano Tricastin ships an update every 14 months, and HydroCalc Basic every 11 days. Most recently, CGT Orano Tricastin was updated on October 25, 2026 and HydroCalc Basic 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.*