# Oilquick vs OELCHECK 4.0

The clearest difference is update cadence: OELCHECK 4.0 at every 3 months against Oilquick's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Oilquick ships an update every 9 months, OELCHECK 4.0 every 3 months. The most recent releases landed on September 12, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Oilquick | OELCHECK 4.0 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 months** |
| Size | 36 MB | 24 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OilQuick Deutschland GmbH](https://appshunter.io/developer/1455982731) | [OELCHECK GmbH](https://appshunter.io/developer/1210793145) |

## What reviewers say

### Oilquick

[App page](https://appshunter.io/ios/app/oilquick/id1455982732)

**Features:** macOS Compatibility

**In-app purchases:** none


### OELCHECK 4.0

[App page](https://appshunter.io/ios/app/oelcheck-40/id1474067028)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Oilquick free?

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

### Is OELCHECK 4.0 free?

OELCHECK 4.0 is free to download, with no in-app purchases.

### Do Oilquick or OELCHECK 4.0 have ads?

Neither Oilquick nor OELCHECK 4.0 shows ads.

### Which is updated more often, Oilquick or OELCHECK 4.0?

Oilquick ships an update every 9 months, and OELCHECK 4.0 every 3 months. Most recently, Oilquick was updated on September 12, 2026 and OELCHECK 4.0 on September 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.*