Postgres is an object-relational database management system.

PostgreSQL serves to provide support for applications which need data management, objects, and knowledge management. Therefore, the database supports all modern Unix systems.  That is to say nothing more nor less than 34 platforms.
 It will take a long time to describe the full list of PostgreSQL features. But let's coupled with the most basic:
  • On the one hand, reliability is a proven fact. It is obvious from the following features:
o full compliance with the principles of ACID - Atomicity, Consistency, Isolation, Durability.
o multiple Concurrency Control (MVCC) to maintain consistency of data in competitive conditions. MVCC means that each transaction sees the database version at the time the transaction starts.
o Write Ahead Logging (WAL) is a common mechanism for logging all transactions. That allows you to restore the system after possible failures.
o Point in Time Recovery (PITR) is the ability to restore a database (using WAL) at any time in the past.
o replication that increases the reliability of PostgreSQL.
o data integrity is the heart of PostgreSQL. PostgreSQL supports data-level consistency at the schema level - foreign keys, constraints.
o the openness of code means their absolute accessibility for anyone.
  • On the other hand, there are a lot of indexes on the use, intelligent query scheduler, thin locking system, memory buffer management and caching system, excellent scalability in competitive work.
o index support: standard, partial indices, functional indices (expressional indices)
 o the query scheduler provides the user with debugging queries and allows to configure the system.
o the lock system supports locking at a lower level. That allows you to maintain a high level of competitiveness while protecting the integrity of the data.
o buffer management and caching.

Fridn Application

We have developed a unique application for the company that includes blockchain, healthcare lifestyle, the opportunity to earn, attracting new members of the system and using the exchange to buy and sell crypto assets. The main idea of the application is the user’s reward for achievements. At the moment, a cash reward has been realized for the running. In order to start mining money, it’s enough for the user to use the fitness bracelet and the Fridn app, which is available for both iOS and Android.

The development goes on and soon it will be available to connect different types of bracelets and smart watches, as well as mining with the help of a different activity (not just running).

We developed the Frind application based on ReactNative technology. We highly recommend this technology, because it allows you to compile one source code on both iOS and Android while producing native (non-hybrid) applications. This significantly speeds up and reduces the cost of developing and debugging the app. If you have an idea for an application and want to implement it, please fill in the order form of the app.


Branding, Design, Development, UI, UX


Android, Backend, Blockchain, Database, Django, iOS, PostgreSQL, Python

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