# Dive Calculator vs DecoPlanner mobile

The clearest difference is review sentiment: Dive Calculator at 100% against DecoPlanner mobile's 40%. Dive Calculator also leads on iOS requirement (6.0 vs 13.0). DecoPlanner mobile's advantage is in-app purchases (none vs 2) and update cadence (every 2 months vs every 12 months). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. Dive Calculator sells 2 one-off in-app purchases. DecoPlanner mobile asks for nothing beyond the download.

Dive Calculator ships an update every 12 months, DecoPlanner mobile every 2 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Dive Calculator | DecoPlanner mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (26 ratings)](https://appshunter.io/ios/app/dive-calculator/id831751437/reviews)** | — |
| Number of ratings | **26** | — |
| Positive reviews | **100.0% of reviews** | 40.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 7 MB | 74 MB |
| Requires iOS | **6.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zanthic Automation Inc.](https://appshunter.io/developer/574695320) | [Global Underwater Explorers Inc.](https://appshunter.io/developer/1459213336) |

## What reviewers say

### Dive Calculator

[App page](https://appshunter.io/ios/app/dive-calculator/id831751437)

This app provides comprehensive scuba diving calculations, including basic, nitrox, and trimix gas mixes. It supports both metric and imperial units, and allows for gas volume and cost calculations for blending and top-ups. Results can be easily copied for documentation.

**Highlights:** Basic, Nitrox, and Trimix calculations, Gas volume and cost calculations, Top-up and bleed down mix calculations, Metric and imperial unit support, Oxygen narcotic/non-narcotic selection, Copy results to clipboard

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EANx Calculations | $0.99 | one-time |
| Trimix Calculations | $0.99 | one-time |


### DecoPlanner mobile

[App page](https://appshunter.io/ios/app/decoplanner-mobile/id1580563324)

Plan complex dive profiles using advanced decompression models. Track multiple gases, manage dive buddies, and visualize dive data with detailed graphs. Choose the version that suits your diving certification level.

**Highlights:** Open/Closed/Passive Semi-Closed Circuit planning, ZH-L16 / VPM-B decompression models, Gas tracking for multiple gases and dive buddies, Gas mixing (partial pressure & continuous blending), Dive profile and tissue compartment graphs, Diving level selection (Rec 1 to Unlimited CCR)

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

**In-app purchases:** none


## Frequently asked questions

### Is Dive Calculator free?

Dive Calculator is free to download, with in-app purchases available.

### Is DecoPlanner mobile free?

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

### Do Dive Calculator or DecoPlanner mobile have ads?

Neither Dive Calculator nor DecoPlanner mobile shows ads.

### Which is updated more often, Dive Calculator or DecoPlanner mobile?

Dive Calculator ships an update every 12 months, and DecoPlanner mobile every 2 months. Most recently, Dive Calculator was updated on October 24, 2026 and DecoPlanner mobile on October 24, 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.*