# Shell GIDS vs Invoice & Estimate Generator

The clearest difference is ads: Shell GIDS at none against Invoice & Estimate Generator's shown. Invoice & Estimate Generator's advantage is iOS requirement (12.4 vs 15.1). On price, 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.

## The numbers

| Metric | Shell GIDS | Invoice & Estimate Generator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/shell-gids/id1437135580/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 28 months | — |
| Monetization | Free | — |
| Size | 68 MB | 27 MB |
| Requires iOS | 15.1 | **12.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Shell Information Technology International B.V.](https://appshunter.io/developer/410842826) | [Hamed Salawu](https://appshunter.io/developer/1796154058) |

## What reviewers say

### Shell GIDS

[App page](https://appshunter.io/ios/app/shell-gids/id1437135580)

Access a virtual library of engineering design standards and industry best practices specifically for Shell petrol stations. This application serves as a comprehensive resource for professionals working with Shell's infrastructure.

**Highlights:** GIDS Virtual Library access, Engineering design standards, Industry best practices, Shell petrol station focus

**In-app purchases:** none


### Invoice & Estimate Generator

[App page](https://appshunter.io/ios/app/invoice-and-estimate-generator/id6503070050)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Shell GIDS free?

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

### Is Invoice & Estimate Generator free?

Invoice & Estimate Generator is free to download, with no in-app purchases.

### Do Shell GIDS or Invoice & Estimate Generator have ads?

Invoice & Estimate Generator shows ads; Shell GIDS does not.

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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.*