2016 - 2020: The Freebies

2020 - The Pandemic

Due to the increasing threat from the pandemic, in the second half of 2020 an attempt was made to create a knowledge sharing platform regarding the consequences of the Corona Virus. This knowledge sharing platform was temporarily available as the main website with the wallets being accessible through a top-menu however sign-ups were disabled as of November 30, 2020.
Although hundreds of people volunteered to add, manage and curate content, and there was a lot of interest from users, managing and standardizing the content (and the contributors) proofed too time-consuming. Furthermore, Google and Apple started to only allow apps dealing with the coronavirus from official sources making a mobile app impossible.
The effort was ultimately discontinued in the first quarter of 2021.

2018 - 2019 - Upgrades

To resolve the scalability issues, the architecture was changed and the code-base of QoinPro was refactored from a monolithic application to a modern server-less SPA (Single Page Application) with multi-lingual capabilities.
On June 13, 2018, we implemented Social Login support through the provider Auth0. The existing database was cleaned up to remove the many duplicate- fake- and unverified email accounts. Accounts with on-chain transactional history were migrated to the new system, and other users could have their account imported by logging in before November 30, 2020 with the original username and password credentials.

2016 - 2017 - Growing Pains

QoinPro supported several alt coins. Examples include Litecoin, Feathercoin, etc. A special type of alt coin (with genesis blocks intact) are called forks. Some were initially supported. Examples include Bitcoin Cash (BCH) or Bitcoin Gold (BTG).
Most did not gain traction in the community or otherwise failed and were delisted. The last to get delisted was Bitcoin Cash (BCH).
With the addition more freebies and later on Airdrops/Airdrips, many users started creating fake accounts in order to grow their network and benefit from additional rewards. The scale at which this happened took us by surprise. Hundreds of thousands of accounts looking for freebies had to be suspended which took a significant amount of time. This introduced significant scalability issues. QoinPro started as a side-project and the code-base and database design did not anticipate such growth. It took until 2018 before the scalability issues were finally resolved. Over the years the scalability issues have resulted in intermittent (but recurring) connectivity and availability issues.