# OPEC vs Zaki

The clearest difference is update cadence: Zaki at every 3 months against OPEC's every 39 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.

OPEC ships an update every 39 months, Zaki every 3 months. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | OPEC | Zaki |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/opec/id6449494383/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 335 MB | 53 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OPEC](https://appshunter.io/developer/1170047215) | [Zaki Universal Inc.](https://appshunter.io/developer/1765663777) |

## What reviewers say

### OPEC

[App page](https://appshunter.io/ios/app/opec/id6449494383)

Access global oil and energy market data through an interactive platform. Explore flagship publications, dynamic charts, and historical data to understand market trends.

**Highlights:** Flagship publication library, Interactive charts and tables, Historical data archive, Global energy market insights, Dynamic data visualization

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

**In-app purchases:** none


### Zaki

[App page](https://appshunter.io/ios/app/zaki/id6749177228)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OPEC free?

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

### Is Zaki free?

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

### Do OPEC or Zaki have ads?

Neither OPEC nor Zaki shows ads.

### Which is updated more often, OPEC or Zaki?

OPEC ships an update every 39 months, and Zaki every 3 months. Most recently, OPEC was updated on October 19, 2026 and Zaki on October 24, 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.*