# GPT vs eSIM Mobile Data

The clearest difference is device support: GPT at 2 against eSIM Mobile Data's —. eSIM Mobile Data's advantage is iOS requirement (15.1 vs 17.2). On price and in-app purchases there is nothing between them.

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

## The numbers

| Metric | GPT | eSIM Mobile Data |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 2 weeks | — |
| Monetization | Free | — |
| Size | 51 MB | 72 MB |
| Requires iOS | 17.2 | **15.1** |
| Devices | **iPhone, iPad** | — |
| Age rating | 4+ | 4+ |
| Developer | [Yu Lung WANG](https://appshunter.io/developer/1446755314) | [Trip Sim L.L.C](https://appshunter.io/developer/1873597291) |

## What reviewers say

### GPT

[App page](https://appshunter.io/ios/app/gpt-gpacers-poseidon-tracker/id1446755315)

Real-time marine safety tracking with smart alerts and offline support. This system ensures full visibility and control over your team, even without internet access, and logs all activity for traceability.

**Highlights:** Real-time tracking map, Advanced alert system (boundary, collision, lost signal), Offline operation support, Black box data logging, Simulator mode for training, Smart team management

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

**In-app purchases:** none


### eSIM Mobile Data

[App page](https://appshunter.io/ios/app/esim-mobile-data-tripsim/id6784836122)

**In-app purchases:** none


## Frequently asked questions

### Is GPT free?

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

### Is eSIM Mobile Data free?

eSIM Mobile Data is free to download, with no in-app purchases.

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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.*