OPEC vs Zaki
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OPEC
Access global oil and energy market data through an interactive platform. Explore flagship publications, dynamic charts, and historical data to understand market trends.
- Flagship publication library
- Interactive charts and tables
- Historical data archive
- Global energy market insights
- Dynamic data visualization
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Our new app brings the world of oil and energy to your fingertips through an engaging, interactive platform. With a valuable library of our flagship publications including the "Monthly Oil Market Report", "World Oil Outlook" and the "Annual Statistical Bulletin" users gain unprecedented access to the pulse of global energy markets. Experience Dynamic Data Interact with our detailed charts and tables that transform complex market data into an easy-to-understand visual story. Explore a Library of Historical Data Our app provides an comprehensive archive of historical editions, granting users the ability to examine and analyze past trends in the energy market. This allows for richer context and understanding of how the energy markets have evolved over time.
Zaki
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ZAKI®, a registered trademark of Zaki Universal Inc., stands for transparency, accountability, and trust in the digital giving economy. ZAKI provides transparent and privacy-preserving on-chain trackability of recorded contributions. Impact metrics are derived from related on-chain sales transactions at points of sale manifesting within the Zaki ecosystem (specifically from Zaki Pay App and Zaki Merchant App). ZAKI currently operates solely in viewing and analytics mode, displaying verified blockchain transactions and impact metrics. The app functions as a non-custodial blockchain interface — users retain full control of their private keys. Where Zaki Universal Inc. and/or its partners obtain appropriate regulatory authorizations, additional user-engagement or payment-integrated features may be enabled in accordance with applicable laws. ZAKI is designed, built, and deployed using proprietary systems and methods of USPTO pending patents of Zaki Universal Inc. Key Features • Track externally executed contributions recorded on-chain • View balances and impact metrics • Maintain visibility of verified blockchain transactions through a self-custodial interface
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | OPEC | Zaki |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 39 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 335 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | OPEC | Zaki Universal Inc. |
In-app purchases
OPEC
No in-app purchases
Zaki
No in-app purchases





