# Repose vs Oil density

The clearest difference is in-app purchases: Repose at none against Oil density's 2. Repose also leads on update cadence (every 7 months vs every 47 months) and iOS requirement (12.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Oil density sells 2 one-off in-app purchases. Repose asks for nothing beyond the download.

Repose ships an update every 7 months, Oil density every 47 months. The most recent releases landed on October 14, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Repose | Oil density |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/oil-density/id1641733273/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 47 months |
| Monetization | — | Free |
| Size | 3 MB | 7 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Longbo Business & Trade Co., Ltd.](https://appshunter.io/developer/1476024417) | [昆 张](https://appshunter.io/developer/517645105) |

## What reviewers say

### Repose

[App page](https://appshunter.io/ios/app/repose-evc/id1484755417)

**Features:** macOS Compatibility

**In-app purchases:** none


### Oil density

[App page](https://appshunter.io/ios/app/oil-density/id1641733273)

This tool calculates the standard density of oil products based on measured apparent density. It automatically queries density tables and computes volume correction factors for accurate standard volume and mass calculations. Improve efficiency and accuracy compared to manual methods.

**Highlights:** Calculates standard oil density, Queries petroleum density tables, Computes volume correction factor (VCF), Calculates standard volume and mass, Adheres to GB/T 1885-1998 national standard

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly card | $2.99 | one-time |
| Lifetime Card | $8.99 | one-time |


## Frequently asked questions

### Is Repose free?

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

### Is Oil density free?

Oil density is free to download, with in-app purchases available.

### Do Repose or Oil density have ads?

Neither Repose nor Oil density shows ads.

### Which is updated more often, Repose or Oil density?

Repose ships an update every 7 months, and Oil density every 47 months. Most recently, Repose was updated on October 14, 2026 and Oil density on October 9, 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.*