# DPC Tools vs Buoyancy Calc

The clearest difference is review sentiment: Buoyancy Calc at 40% against DPC Tools's 0%. Buoyancy Calc also leads on ratings volume (25 vs 5). DPC Tools's advantage is rating (3.4 vs 3.1) and iOS requirement (13.0 vs 15.6). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DPC Tools holds the better App Store score, 3.4 against 3.1. That said, the two scores are not equally well evidenced: Buoyancy Calc has 25 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 0% of DPC Tools's written reviews are positive against 40% of Buoyancy Calc's, so the app with the better star average is not the one people write more warmly about.

DPC Tools ships an update every 2 months, Buoyancy Calc every 3 months. The most recent releases landed on September 21, 2026 and June 8, 2026 respectively.

## The numbers

| Metric | DPC Tools | Buoyancy Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (5 ratings)](https://appshunter.io/ios/app/dpc-tools/id1481236443/reviews)** | [3.1 (25 ratings)](https://appshunter.io/ios/app/buoyancy-calc/id1482332472/reviews) |
| Number of ratings | 5 | **25** |
| Positive reviews | 0.0% of reviews | **40.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 15 MB | 1 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Diamond Plastics Corporation](https://appshunter.io/developer/659014057) | [Eric Hamiter](https://appshunter.io/developer/1482332471) |

## What reviewers say

### DPC Tools

[App page](https://appshunter.io/ios/app/dpc-tools/id1481236443)

This app provides a suite of tools for designing and building projects using PVC pipe. It calculates pipe buoyancy, external load deflection, flow rates, pricing, and truckload capacity. Results can be printed for easy reference.

**Highlights:** Pipe Buoyancy Calculator, External Load Design, Flow Calculator, Pricing Calculator, Representative Locator, Truckload Calculator

**Features:** macOS Compatibility

**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 DPC Tools free?

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

### Is Buoyancy Calc free?

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

### Which has better reviews, DPC Tools or Buoyancy Calc?

DPC Tools is rated higher. DPC Tools averages 3.4 out of 5 from 5 ratings, while Buoyancy Calc averages 3.1 from 25 ratings.

### Do DPC Tools or Buoyancy Calc have ads?

Neither DPC Tools nor Buoyancy Calc shows ads.

### Which is updated more often, DPC Tools or Buoyancy Calc?

DPC Tools ships an update every 2 months, and Buoyancy Calc every 3 months. Most recently, DPC Tools 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.*