# Tread Shellharbour vs MAXIMise

The clearest difference is update cadence: MAXIMise at every 3 weeks against Tread Shellharbour's every 6 months. Tread Shellharbour's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 18.0). On price, ads 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.

Tread Shellharbour ships an update every 6 months, MAXIMise every 3 weeks. The most recent releases landed on September 29, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Tread Shellharbour | MAXIMise |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Size | 136 MB | 35 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Shellharbour City Council](https://appshunter.io/developer/832832889) | [MAXIMS TRAVEL PTY LTD](https://appshunter.io/developer/1546019732) |

## What reviewers say

### Tread Shellharbour

[App page](https://appshunter.io/ios/app/tread-shellharbour/id991259195)

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

**In-app purchases:** none


### MAXIMise

[App page](https://appshunter.io/ios/app/maximise/id1564865251)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tread Shellharbour free?

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

### Is MAXIMise free?

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

### Do Tread Shellharbour or MAXIMise have ads?

Neither Tread Shellharbour nor MAXIMise shows ads.

### Which is updated more often, Tread Shellharbour or MAXIMise?

Tread Shellharbour ships an update every 6 months, and MAXIMise every 3 weeks. Most recently, Tread Shellharbour was updated on September 29, 2026 and MAXIMise on October 5, 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.*