# Oilcalcs vs sSL

The clearest difference is price: sSL at $2.99 against Oilcalcs's $9.99. Oilcalcs's advantage is iOS requirement (15.6 vs 18.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Oilcalcs costs $9.99 and sSL $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Oilcalcs ships an update every 4 months, sSL every 2 months. The most recent releases landed on September 17, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Oilcalcs | sSL |
| --- | --- | --- |
| Price | $9.99 | **$2.99** |
| Rating | **[4.8 (46 ratings)](https://appshunter.io/ios/app/oilcalcs/id612283154/reviews)** | — |
| Number of ratings | **46** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 2 MB | 2 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [ron mooring](https://appshunter.io/developer/612283157) | [Philippe Le Gall](https://appshunter.io/developer/1004932800) |

## 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


### sSL

[App page](https://appshunter.io/ios/app/ssl/id1568969548)

**In-app purchases:** none


## Frequently asked questions

### Is Oilcalcs free?

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

### Is sSL free?

sSL costs $2.99, with no in-app purchases.

### Do Oilcalcs or sSL have ads?

Neither Oilcalcs nor sSL shows ads.

### Which is updated more often, Oilcalcs or sSL?

Oilcalcs ships an update every 4 months, and sSL every 2 months. Most recently, Oilcalcs was updated on September 17, 2026 and sSL on September 15, 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.*