# Baltic Blender vs GGM WATCH

The clearest difference is in-app purchases: GGM WATCH at none against Baltic Blender's 2. GGM WATCH also leads on iOS requirement (12.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Baltic Blender sells 2 one-off in-app purchases. GGM WATCH asks for nothing beyond the download.

## The numbers

| Metric | Baltic Blender | GGM WATCH |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 38.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 7 MB | 96 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Eskil Olsen](https://appshunter.io/developer/304464486) | [GIGAMEDIA](https://appshunter.io/developer/1458710711) |

## What reviewers say

### Baltic Blender

[App page](https://appshunter.io/ios/app/baltic-blender/id511697085)

This app assists technical divers in accurately blending gases for SCUBA diving using advanced real gas models. It performs complex calculations for partial-pressure techniques, supporting nitrox and optional trimix upgrades. The tool aids in precise gas mixture creation, emphasizing safety and accuracy in diving preparations.

**Highlights:** Nitrox blending, Trimix blending (in-app purchase), Volume and pricing calculations (in-app purchase), Real gas law (GERG-2004), Metric and imperial units, Simultaneous cylinder work, Bill printing/emailing

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trimix | $4.99 | one-time |
| Volumes & Pricing | $4.99 | one-time |


### GGM WATCH

[App page](https://appshunter.io/ios/app/ggm-watch/id6776539873)

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

**In-app purchases:** none


## Frequently asked questions

### Is Baltic Blender free?

Baltic Blender is free to download, with in-app purchases available.

### Is GGM WATCH free?

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

### Do Baltic Blender or GGM WATCH have ads?

Neither Baltic Blender nor GGM WATCH shows ads.

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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.*