# USSD справочник vs OilCenter

The clearest difference is iOS requirement: USSD справочник at 9.0 against OilCenter's 14.0. 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.

## The numbers

| Metric | USSD справочник | OilCenter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Size | 13 MB | 70 MB |
| Requires iOS | **9.0** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Vladimir Zavyalov](https://appshunter.io/developer/1198527635) | [Alexandr Kocherga](https://appshunter.io/developer/1766088349) |

## What reviewers say

### USSD справочник

[App page](https://appshunter.io/ios/app/ussd/id1265261114)

**Features:** macOS Compatibility

**In-app purchases:** none


### OilCenter

[App page](https://appshunter.io/ios/app/oilcenter/id6670398959)

**In-app purchases:** none


## Frequently asked questions

### Is USSD справочник free?

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

### Is OilCenter free?

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

### Do USSD справочник or OilCenter have ads?

Neither USSD справочник nor OilCenter shows ads.

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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.*