# FLEX LNG IRT vs Challenger App

The clearest difference is update cadence: Challenger App at every 5 months against FLEX LNG IRT's every 11 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.

FLEX LNG IRT ships an update every 11 months, Challenger App every 5 months. The most recent releases landed on November 11, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | FLEX LNG IRT | Challenger App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 5 months** |
| Size | 53 MB | 41 MB |
| Requires iOS | 12.4 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MariApps Marine Solutions Pvt. Ltd.](https://appshunter.io/developer/1040404561) | [Coteng NV](https://appshunter.io/developer/1479551392) |

## What reviewers say

### FLEX LNG IRT

[App page](https://appshunter.io/ios/app/flex-lng-irt/id1571519979)

**Features:** macOS Compatibility

**In-app purchases:** none


### Challenger App

[App page](https://appshunter.io/ios/app/challenger-app/id1586938718)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FLEX LNG IRT free?

FLEX LNG IRT is free to download, with no in-app purchases.

### Is Challenger App free?

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

### Do FLEX LNG IRT or Challenger App have ads?

Neither FLEX LNG IRT nor Challenger App shows ads.

### Which is updated more often, FLEX LNG IRT or Challenger App?

FLEX LNG IRT ships an update every 11 months, and Challenger App every 5 months. Most recently, FLEX LNG IRT was updated on November 11, 2026 and Challenger App on November 7, 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.*