# Dive Planner Calculator vs Drumaio

The clearest difference is price: Drumaio at Free against Dive Planner Calculator's $8.99. Drumaio also leads on update cadence (every 3 days vs every 7 months). Dive Planner Calculator's advantage is iOS requirement (11.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

Drumaio 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.

Dive Planner Calculator ships an update every 7 months, Drumaio every 3 days. The most recent releases landed on September 2, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Dive Planner Calculator | Drumaio |
| --- | --- | --- |
| Price | $8.99 | **Free** |
| Rating | **[3.3 (3 ratings)](https://appshunter.io/ios/app/dive-planner-calculator/id6739454581/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 days** |
| Monetization | Paid | — |
| Size | 10 MB | 33 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SAGA Virtual Tecnologia Ltda](https://appshunter.io/developer/1455930511) | [WTW Elec Co., Ltd](https://appshunter.io/developer/1894119583) |

## What reviewers say

### 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


### Drumaio

[App page](https://appshunter.io/ios/app/drumaio/id6762424348)

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

**In-app purchases:** none


## Frequently asked questions

### Is Dive Planner Calculator free?

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

### Is Drumaio free?

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

### Do Dive Planner Calculator or Drumaio have ads?

Neither Dive Planner Calculator nor Drumaio shows ads.

### Which is updated more often, Dive Planner Calculator or Drumaio?

Dive Planner Calculator ships an update every 7 months, and Drumaio every 3 days. Most recently, Dive Planner Calculator was updated on September 2, 2026 and Drumaio on September 21, 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.*