Comparison

Project 4.0 vs Petro USA Rewards

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Project 4.0

Features
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Direct registration through this mobile application is not possible. This can only be done through the relevant Company / Employer. This mobile application is part of a larger analytical system originally developed for a german company working in Shipbuilding industry. It has been developed and improved under the influence of German requirements for innovation and quality. The development of a management system in the shipbuilding industry is a great challenge due to the fact that the work organisation requires constant movement of personnel from one place to another and therefore controlling of this movements and the work done is a challenge. It is one thing to design and implement a system for managing work in an office or hall, where everything is grouped in one place, and quite another to manage distant work objects with constant movement of staff between them and with constantly changing and dynamic production structure, such as shipbuilding. Over time, this has led to the development of a project management system that is so accurate and precise that it is able to perform real-time detailed analysis of each production process (related to human activity) down to the smallest detail, including the key productivity factor - The People. An objective, mathematical evaluation of the work, regardless of the personal preferences of the respective manager, may surprise you. It is possible that, after proper analysis, it turns out that not all of the always raised and privileged workers are really like that productive and effective. You will have another staff appraisal tool that will help you to promote exactly the employees that deserve. Every employer tries to encourage those who bring him money. Every worker needs his well done assignment to be noticed. We assume that as a manager you have often had cases where employees have asked you for a promotion, claiming that they are one of the most productive and conscientious employees. If you are not their direct manager, how do you decide who to promote and who not? Where is the third independent assessment that confirms or refutes the opinion received from the manager? Now you can have such a tool. EVALUATION OF TASKS The system performs a detailed analysis of each task and subtask of the launched project. You can track in real time who has achieved what, when and to the smallest position. You can analyse and evaluate the results. Based on the analysis, you can create a catalog with typical tasks that will be of invaluable help in preparing offers and planning of future work. Supported languages: English, Deutsch, Polish, Ukrainian, Russisch, Turkisch, Romanish, Bulgarian

About

Petro USA Rewards

Access exclusive deals and join a loyalty program directly from your phone. This app offers a convenient way to manage special offers and maximize benefits.

Highlights
  • Exclusive deals access
  • Loyalty program enrollment
  • Mobile offer management
  • Special offerings
  • Faster deal access
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Our mobile app provides a faster way to access our unique deals. In addition, you will also be able to join our vigorous loyalty program right from your phone. It's the easiest and most beneficial way to take full advantage of all of your special offerings!

Screenshots

Project 4.04 screens
Petro USA Rewards4 screens

Verdict

The call

The clearest difference is ads: Project 4.0 at none against Petro USA Rewards's shown. Petro USA Rewards's advantage is iOS requirement (12.2 vs 17.0). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Project 4.0 ships an update every 5 months, Petro USA Rewards every 10 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

Scorecard2 real differences · 7 level
Project 4.0 versus Petro USA Rewards: the parameters behind the verdict, then further details
ParameterProject 4.0Petro USA Rewards
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 5 months — betterEvery 10 months
AdsNo — betterYes
In-app purchasesNoNo
Monetization—Ad-supported
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.012.2 — better
Further details — not scored
Size83 MB303 MB
Age rating4+4+
DeveloperNikola NikolovPetro USA

In-app purchases

None

Project 4.0

No in-app purchases

None

Petro USA Rewards

No in-app purchases

Questions

Is Project 4.0 free?
Project 4.0 is free to download, with no in-app purchases.
Is Petro USA Rewards free?
Petro USA Rewards is free to download, with no in-app purchases.
Do Project 4.0 or Petro USA Rewards have ads?
Petro USA Rewards shows ads; Project 4.0 does not.
Which is updated more often, Project 4.0 or Petro USA Rewards?
Project 4.0 ships an update every 5 months, and Petro USA Rewards every 10 months. Most recently, Project 4.0 was updated on November 7, 2026 and Petro USA Rewards on November 3, 2026.

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