# Oilcalcs vs Orca Maritime Tools

The clearest difference is price: Orca Maritime Tools at Free against Oilcalcs's $9.99. Orca Maritime Tools also leads on rating (5.0 vs 4.8). Oilcalcs's advantage is ratings volume (46 vs 1). On update cadence, ads, in-app purchases and device support there is nothing between them.

Orca Maritime Tools is free to download; Oilcalcs costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Orca Maritime Tools holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Oilcalcs has 46 ratings behind it against 1, so its average is the more settled of the two.

Oilcalcs ships an update every 4 months, Orca Maritime Tools every 2 months. The most recent releases landed on November 8, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Oilcalcs | Orca Maritime Tools |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [4.8 (46 ratings)](https://appshunter.io/ios/app/oilcalcs/id612283154/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/orca-maritime-tools/id1528498935/reviews)** |
| Number of ratings | **46** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Size | 2 MB | 64 MB |
| Requires iOS | 15.6 | **15.5** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ron mooring](https://appshunter.io/developer/612283157) | [Web That Matters LLC](https://appshunter.io/developer/1281900540) |

## What reviewers say

### Oilcalcs

[App page](https://appshunter.io/ios/app/oilcalcs/id612283154)

This app provides comprehensive calculations for professionals in the oil and gas industry. It offers versatile tools for volume and weight conversions, density corrections, and blending calculations, supporting various industry tables and units.

**Highlights:** Volume and weight conversions, Density correction for special applications, Viscosity, pour point, and flash point blender, LNG and LPG density calculators, Support for ASTM tables and units, Data export to database

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

**In-app purchases:** none


### Orca Maritime Tools

[App page](https://appshunter.io/ios/app/orca-maritime-tools/id1528498935)

This business application helps manage maritime operations by tracking fleets, vessels, and daily job routines. It provides reminders and a summary dashboard for a comprehensive overview of maritime activities.

**Highlights:** Fleet and vessel tracking, Daily job routine management, Reminder system, Summary dashboard, Maritime business operations

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

**In-app purchases:** none


## Frequently asked questions

### Is Oilcalcs free?

Oilcalcs costs $9.99, with no in-app purchases.

### Is Orca Maritime Tools free?

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

### Which has better reviews, Oilcalcs or Orca Maritime Tools?

Orca Maritime Tools is rated higher. Oilcalcs averages 4.8 out of 5 from 46 ratings, while Orca Maritime Tools averages 5.0 from 1 ratings.

### Do Oilcalcs or Orca Maritime Tools have ads?

Neither Oilcalcs nor Orca Maritime Tools shows ads.

### Which is updated more often, Oilcalcs or Orca Maritime Tools?

Oilcalcs ships an update every 4 months, and Orca Maritime Tools every 2 months. Most recently, Oilcalcs was updated on November 8, 2026 and Orca Maritime Tools on November 3, 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.*