# Buoyancy Calc vs Dive Planner Calculator

The clearest difference is price: Buoyancy Calc at Free against Dive Planner Calculator's $8.99. Buoyancy Calc also leads on update cadence (every 3 months vs every 7 months) and ratings volume (25 vs 3). Dive Planner Calculator's advantage is review sentiment (67% vs 40%) and rating (3.3 vs 3.1). On ads, in-app purchases and device support there is nothing between them.

Buoyancy Calc 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 holds the better App Store score, 3.3 against 3.1. That said, the two scores are not equally well evidenced: Buoyancy Calc has 25 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 40% of Buoyancy Calc's written reviews are positive against 67% of Dive Planner Calculator's.

Buoyancy Calc ships an update every 3 months, Dive Planner Calculator every 7 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Buoyancy Calc | Dive Planner Calculator |
| --- | --- | --- |
| Price | **Free** | $8.99 |
| Rating | [3.1 (25 ratings)](https://appshunter.io/ios/app/buoyancy-calc/id1482332472/reviews) | **[3.3 (3 ratings)](https://appshunter.io/ios/app/dive-planner-calculator/id6739454581/reviews)** |
| Number of ratings | **25** | 3 |
| Positive reviews | 40.0% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 7 months |
| Monetization | **Free** | Paid |
| Size | 1 MB | 10 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eric Hamiter](https://appshunter.io/developer/1482332471) | [SAGA Virtual Tecnologia Ltda](https://appshunter.io/developer/1455930511) |

## What reviewers say

### Buoyancy Calc

[App page](https://appshunter.io/ios/app/buoyancy-calc/id1482332472)

Calculate the optimal weight for scuba diving based on environmental factors. Input your weight, water type, tank, and exposure suit to get a suggested weight for neutral buoyancy.

**Highlights:** Calculate suggested diving weight, Adjust for water type, Adjust for tank type, Adjust for exposure suit, Supports pounds and kilograms

**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 Buoyancy Calc free?

Buoyancy Calc 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, Buoyancy Calc or Dive Planner Calculator?

Dive Planner Calculator is rated higher. Buoyancy Calc averages 3.1 out of 5 from 25 ratings, while Dive Planner Calculator averages 3.3 from 3 ratings.

### Do Buoyancy Calc or Dive Planner Calculator have ads?

Neither Buoyancy Calc nor Dive Planner Calculator shows ads.

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

Buoyancy Calc ships an update every 3 months, and Dive Planner Calculator every 7 months. Most recently, Buoyancy Calc was updated on November 3, 2026 and Dive Planner Calculator on October 30, 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.*