# kong calculator vs Oil Timer

The clearest difference is device support: kong calculator at 3 against Oil Timer's —. Oil Timer's advantage is iOS requirement (13.0 vs 15.0). On price 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.

## The numbers

| Metric | kong calculator | Oil Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | — |
| Update frequency | Every 4 days | — |
| Size | 20 MB | 53 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Changyeol Seo](https://appshunter.io/developer/551904752) | [Focaccia, Inc.](https://appshunter.io/developer/1689143851) |

## What reviewers say

### kong calculator

[App page](https://appshunter.io/ios/app/kong-calculator/id1594969449)

**Features:** macOS Compatibility

**In-app purchases:** none


### Oil Timer

[App page](https://appshunter.io/ios/app/oil-timer/id6760693832)

**In-app purchases:** none


## Frequently asked questions

### Is kong calculator free?

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

### Is Oil Timer free?

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

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*