# Metro Harbour View vs BookMay

The clearest difference is update cadence: BookMay at every 2 days against Metro Harbour View's every 3 months. Metro Harbour View's advantage is iOS requirement (13.0 vs 18.6). 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.

Metro Harbour View ships an update every 3 months, BookMay every 2 days. The most recent releases landed on October 23, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Metro Harbour View | BookMay |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 days** |
| Size | 52 MB | 9 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CardApp Limited](https://appshunter.io/developer/539151439) | [KitVa Limited](https://appshunter.io/developer/6784130432) |

## What reviewers say

### Metro Harbour View

[App page](https://appshunter.io/ios/app/metro-harbour-view/id577058742)

**In-app purchases:** none


### BookMay

[App page](https://appshunter.io/ios/app/bookmay/id6784130430)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Metro Harbour View free?

Metro Harbour View is free to download, with no in-app purchases.

### Is BookMay free?

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

### Do Metro Harbour View or BookMay have ads?

Neither Metro Harbour View nor BookMay shows ads.

### Which is updated more often, Metro Harbour View or BookMay?

Metro Harbour View ships an update every 3 months, and BookMay every 2 days. Most recently, Metro Harbour View was updated on October 23, 2026 and BookMay on October 17, 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.*