# Surface Air Consumption vs Kraken NextGen

The clearest difference is rating: Surface Air Consumption at 5.0 against Kraken NextGen's 2.8. Surface Air Consumption also leads on in-app purchases (none vs 4) and review sentiment (100% vs 67%). On price, ratings volume and ads there is nothing between them.

Both are free to download. Kraken NextGen sells 4 in-app purchases, starting at $4.99 per 7 days. Surface Air Consumption asks for nothing beyond the download.

Surface Air Consumption holds the better App Store score, 5.0 against 2.8. Both are backed by a comparable volume of ratings — 2 and 5 respectively. Written reviews point the same way: 100% of Surface Air Consumption's written reviews are positive against 67% of Kraken NextGen's.

Surface Air Consumption ships an update weekly, Kraken NextGen every 2 months. The most recent releases landed on June 1, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Surface Air Consumption | Kraken NextGen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/surface-air-consumption/id1532974489/reviews)** | [2.8 (5 ratings)](https://appshunter.io/ios/app/kraken-nextgen/id6478402046/reviews) |
| Number of ratings | 2 | **5** |
| Positive reviews | **100.0% of reviews** | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 322 MB |
| Requires iOS | **13.6** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Leridian Dynamics, Inc.](https://appshunter.io/developer/1356342542) | [DATS Sports](https://appshunter.io/developer/1556559865) |

## What reviewers say

### 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


### Kraken NextGen

[App page](https://appshunter.io/ios/app/kraken-nextgen/id6478402046)

Enhance your underwater photography and track dives with AI-powered image improvements and detailed dive logging. This app works with smart housings to provide real-time data and safety timers for a superior diving experience.

**Highlights:** AI Image Enhancement, AI Color Correction, AI Image Denoise, Comprehensive Dive Logs, Real-Time Dive Tracking, Cool-Down Timers, Decompression Calculations

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kraken Pro Weekly | $4.99 | per 7 days |
| Kraken Pro Monthly | $9.99 | per month |
| Kraken Pro Half-Yearly | $49.99 | per 6 months |
| Kraken Pro Yearly | $79.99 | per year |


## Frequently asked questions

### Is Surface Air Consumption free?

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

### Is Kraken NextGen free?

Kraken NextGen is free to download, with in-app purchases available.

### Which has better reviews, Surface Air Consumption or Kraken NextGen?

Surface Air Consumption is rated higher. Surface Air Consumption averages 5.0 out of 5 from 2 ratings, while Kraken NextGen averages 2.8 from 5 ratings.

### Do Surface Air Consumption or Kraken NextGen have ads?

Neither Surface Air Consumption nor Kraken NextGen shows ads.

### Which is updated more often, Surface Air Consumption or Kraken NextGen?

Surface Air Consumption ships an update weekly, and Kraken NextGen every 2 months. Most recently, Surface Air Consumption was updated on June 1, 2026 and Kraken NextGen on September 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.*