# OilCity vs e

The clearest difference is iOS requirement: OilCity at 15.0 against e's 17.0. On price, update cadence, ads 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.

OilCity ships an update monthly, e every 6 weeks. Both last shipped on September 9, 2026.

## The numbers

| Metric | OilCity | e |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Size | 75 MB | 15 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Global Nengchuang (Beijing) Network Technology Co., Ltd.](https://appshunter.io/developer/1646201435) | [STEPHAN DR. GILLMEIER](https://appshunter.io/developer/1729166330) |

## What reviewers say

### OilCity

[App page](https://appshunter.io/ios/app/oilcity/id6443466499)

**Features:** macOS Compatibility

**In-app purchases:** none


### e

[App page](https://appshunter.io/ios/app/e-boost/id6477388767)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OilCity free?

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

### Is e free?

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

### Do OilCity or e have ads?

Neither OilCity nor e shows ads.

### Which is updated more often, OilCity or e?

OilCity ships an update monthly, and e every 6 weeks. Most recently, OilCity was updated on September 9, 2026 and e on September 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.*