# World Maritime Week vs Battery & ES Tech

The clearest difference is update cadence: Battery & ES Tech at every 5 weeks against World Maritime Week's every 24 months. World Maritime Week's advantage is iOS requirement (11.0 vs 14.0). 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.

World Maritime Week ships an update every 24 months, Battery & ES Tech every 5 weeks. The most recent releases landed on September 16, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | World Maritime Week | Battery & ES Tech |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 5 weeks** |
| Size | 46 MB | 156 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BILBAO EXHIBITION CENTRE](https://appshunter.io/developer/500103771) | [Fira Internacional Barcelona](https://appshunter.io/developer/1455122396) |

## What reviewers say

### World Maritime Week

[App page](https://appshunter.io/ios/app/world-maritime-week/id1446405110)

**Features:** macOS Compatibility

**In-app purchases:** none


### Battery & ES Tech

[App page](https://appshunter.io/ios/app/battery-and-es-tech/id6795030321)

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

**In-app purchases:** none


## Frequently asked questions

### Is World Maritime Week free?

World Maritime Week is free to download, with no in-app purchases.

### Is Battery & ES Tech free?

Battery & ES Tech is free to download, with no in-app purchases.

### Do World Maritime Week or Battery & ES Tech have ads?

Neither World Maritime Week nor Battery & ES Tech shows ads.

### Which is updated more often, World Maritime Week or Battery & ES Tech?

World Maritime Week ships an update every 24 months, and Battery & ES Tech every 5 weeks. Most recently, World Maritime Week was updated on September 16, 2026 and Battery & ES Tech on October 23, 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.*