# Baltic Blender vs Surface Air Consumption

The clearest difference is review sentiment: Surface Air Consumption at 100% against Baltic Blender's 38%. Surface Air Consumption also leads on in-app purchases (none vs 2) and update cadence (weekly vs every 5 months). 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. Surface Air Consumption asks for nothing beyond the download.

Baltic Blender ships an update every 5 months, Surface Air Consumption weekly. The most recent releases landed on October 17, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Baltic Blender | Surface Air Consumption |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/surface-air-consumption/id1532974489/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 38.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 7 MB | 1 MB |
| Requires iOS | 17.0 | **13.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Eskil Olsen](https://appshunter.io/developer/304464486) | [Leridian Dynamics, Inc.](https://appshunter.io/developer/1356342542) |

## 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 |


### Surface Air Consumption

[App page](https://appshunter.io/ios/app/surface-air-consumption/id1532974489)

This utility calculates surface air consumption (SAC) rates and air needs at depth using only user-provided dive profile data. It does not compute nitrogen absorption or decompression limits. Always prioritize safety and consult official decompression tables.

**Highlights:** Calculates SAC Rate, Estimates air requirements at depth, User input based calculations, Dive profile analysis, Focuses solely on air consumption

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Baltic Blender free?

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

### Is Surface Air Consumption free?

Surface Air Consumption is free to download, with no in-app purchases.

### Do Baltic Blender or Surface Air Consumption have ads?

Neither Baltic Blender nor Surface Air Consumption shows ads.

### Which is updated more often, Baltic Blender or Surface Air Consumption?

Baltic Blender ships an update every 5 months, and Surface Air Consumption weekly. Most recently, Baltic Blender was updated on October 17, 2026 and Surface Air Consumption on October 16, 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.*