# KOJI Filter App vs XOil

The clearest difference is update cadence: XOil at weekly against KOJI Filter App's every 6 months. XOil also leads on iOS requirement (13.0 vs 15.0). 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.

KOJI Filter App ships an update every 6 months, XOil weekly. The most recent releases landed on October 29, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | KOJI Filter App | XOil |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/xoil/id6471597932/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Weekly** |
| Monetization | — | Free |
| Size | 74 MB | 105 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Harren Chua](https://appshunter.io/developer/1546545104) | [Kellison Gatinho](https://appshunter.io/developer/1715687710) |

## What reviewers say

### KOJI Filter App

[App page](https://appshunter.io/ios/app/koji-filter-app/id1546942830)

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

**In-app purchases:** none


### XOil

[App page](https://appshunter.io/ios/app/xoil/id6471597932)

Schedule your car's oil change conveniently online. A professional will come to your location to perform the service efficiently and with expertise.

**Highlights:** Schedule oil changes online, Mobile service professionals, Convenient at-location service, Professional and agile service

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is KOJI Filter App free?

KOJI Filter App is free to download, with no in-app purchases.

### Is XOil free?

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

### Do KOJI Filter App or XOil have ads?

Neither KOJI Filter App nor XOil shows ads.

### Which is updated more often, KOJI Filter App or XOil?

KOJI Filter App ships an update every 6 months, and XOil weekly. Most recently, KOJI Filter App was updated on October 29, 2026 and XOil on October 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.*