# Surface Air Consumption vs Dive Planner Calculator

The clearest difference is price: Surface Air Consumption at Free against Dive Planner Calculator's $8.99. Surface Air Consumption also leads on rating (5.0 vs 3.3) and review sentiment (100% vs 67%). Dive Planner Calculator's advantage is iOS requirement (11.0 vs 13.6). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Surface Air Consumption is free to download; Dive Planner Calculator costs $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Surface Air Consumption holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews point the same way: 100% of Surface Air Consumption's written reviews are positive against 67% of Dive Planner Calculator's.

Surface Air Consumption ships an update weekly, Dive Planner Calculator every 7 months. The most recent releases landed on October 16, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Surface Air Consumption | Dive Planner Calculator |
| --- | --- | --- |
| Price | **Free** | $8.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/surface-air-consumption/id1532974489/reviews)** | [3.3 (3 ratings)](https://appshunter.io/ios/app/dive-planner-calculator/id6739454581/reviews) |
| Number of ratings | 2 | **3** |
| Positive reviews | **100.0% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 7 months |
| Monetization | **Free** | Paid |
| Size | 1 MB | 10 MB |
| Requires iOS | 13.6 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Leridian Dynamics, Inc.](https://appshunter.io/developer/1356342542) | [SAGA Virtual Tecnologia Ltda](https://appshunter.io/developer/1455930511) |

## 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


### Dive Planner Calculator

[App page](https://appshunter.io/ios/app/dive-planner-calculator/id6739454581)

This app simplifies recreational dive planning by calculating essential dive parameters for up to three consecutive dives. It provides automatic calculations for residual nitrogen, safe ascent times, and includes a visual dive graph for easy review. Designed for both new and experienced divers, it ensures adherence to safety standards for stress-free underwater exploration.

**Highlights:** Plan up to three consecutive dives, Automatic calculation of dive parameters, Surface interval tracking, Visual dive graph, Adherence to safety guidelines, On-the-go convenience

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

**In-app purchases:** none


## Frequently asked questions

### Is Surface Air Consumption free?

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

### Is Dive Planner Calculator free?

Dive Planner Calculator costs $8.99, with no in-app purchases.

### Which has better reviews, Surface Air Consumption or Dive Planner Calculator?

Surface Air Consumption is rated higher. Surface Air Consumption averages 5.0 out of 5 from 2 ratings, while Dive Planner Calculator averages 3.3 from 3 ratings.

### Do Surface Air Consumption or Dive Planner Calculator have ads?

Neither Surface Air Consumption nor Dive Planner Calculator shows ads.

### Which is updated more often, Surface Air Consumption or Dive Planner Calculator?

Surface Air Consumption ships an update weekly, and Dive Planner Calculator every 7 months. Most recently, Surface Air Consumption was updated on October 16, 2026 and Dive Planner Calculator on October 23, 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.*