# V vs Buoyancy Calc

The clearest difference is price: Buoyancy Calc at Free against V's $48.99. Buoyancy Calc also leads on ratings volume (25 vs 7) and iOS requirement (15.6 vs 17.6). V's advantage is rating (4.1 vs 3.1) and review sentiment (68% vs 40%). On update cadence, ads, in-app purchases and device support there is nothing between them.

Buoyancy Calc is free to download; V costs $48.99 up front. Neither carries in-app purchases, so what you see is what you pay.

V holds the better App Store score, 4.1 against 3.1. Both are backed by a comparable volume of ratings — 7 and 25 respectively. Written reviews point the same way: 68% of V's written reviews are positive against 40% of Buoyancy Calc's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 21, 2026 and June 8, 2026 respectively.

## The numbers

| Metric | V | Buoyancy Calc |
| --- | --- | --- |
| Price | $48.99 | **Free** |
| Rating | **[4.1 (7 ratings)](https://appshunter.io/ios/app/v-planner/id301978860/reviews)** | [3.1 (25 ratings)](https://appshunter.io/ios/app/buoyancy-calc/id1482332472/reviews) |
| Number of ratings | 7 | **25** |
| Positive reviews | **67.9% of reviews** | 40.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Paid | **Free** |
| Size | 3 MB | 1 MB |
| Requires iOS | 17.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HHS Software Corp.](https://appshunter.io/developer/301978863) | [Eric Hamiter](https://appshunter.io/developer/1482332471) |

## What reviewers say

### V

[App page](https://appshunter.io/ios/app/v-planner/id301978860)

This app is a dive decompression calculator for technical scuba divers, implementing the VPM decompression model. It supports various gas mixes, planning methods for open circuit and rebreathers, and includes detailed dive planning tools and a gas blending utility.

**Highlights:** VPM-B and VPM-B/E decompression models, Support for nitrox and trimix gases, OC and CCR planning, Bailout planning for CCR, ppO2, END, and gas consumption details, Dive planning tools (best mix, MOD, END, EAD), Gas blending utility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is V free?

V costs $48.99, with no in-app purchases.

### Is Buoyancy Calc free?

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

### Which has better reviews, V or Buoyancy Calc?

V is rated higher. V averages 4.1 out of 5 from 7 ratings, while Buoyancy Calc averages 3.1 from 25 ratings.

### Do V or Buoyancy Calc have ads?

Neither V nor Buoyancy Calc shows ads.

### Which is updated more often, V or Buoyancy Calc?

V ships an update every 3 months, and Buoyancy Calc every 3 months. Most recently, V was updated on September 21, 2026 and Buoyancy Calc on June 8, 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.*