# OHS vs CAST LAUNCH SG

The clearest difference is update cadence: CAST LAUNCH SG at fortnightly against OHS's every 4 months. 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.

OHS ships an update every 4 months, CAST LAUNCH SG fortnightly. The most recent releases landed on July 23, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | OHS | CAST LAUNCH SG |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Size | 99 MB | 79 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [PSA Marine Pte Ltd](https://appshunter.io/developer/1361004640) | [MARITIME TECHNOLOGIES (R&D) PTE. LTD.](https://appshunter.io/developer/1190103871) |

## What reviewers say

### OHS

[App page](https://appshunter.io/ios/app/ohs/id6444669620)

**Features:** macOS Compatibility

**In-app purchases:** none


### CAST LAUNCH SG

[App page](https://appshunter.io/ios/app/cast-launch-sg/id6446350020)

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

**In-app purchases:** none


## Frequently asked questions

### Is OHS free?

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

### Is CAST LAUNCH SG free?

CAST LAUNCH SG is free to download, with no in-app purchases.

### Do OHS or CAST LAUNCH SG have ads?

Neither OHS nor CAST LAUNCH SG shows ads.

### Which is updated more often, OHS or CAST LAUNCH SG?

OHS ships an update every 4 months, and CAST LAUNCH SG fortnightly. Most recently, OHS was updated on July 23, 2026 and CAST LAUNCH SG on September 15, 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.*