QA for a Multi-Platform Crypto Solution

About project

Client

Our client for this project is a renowned crypto exchange platform that decided to venture into the NFT market with a new website, two mobile apps, and solutions for Apple TV and Google Chromecast where the NFTs can be viewed. With a wide range of possible platform combinations and the inaccuracy-sensitive nature of NFTs, as well as the massive competition in the market, the quality of the products had to be non-negotiable.

Project overview

We will make your app’s quality its strongest feature.

Challenge

The client approached us with an already live crypto platform that combined mobile apps, a web interface, and large-screen viewing via Apple TV and Google Chromecast. While the product was functional, it suffered from a growing number of unresolved defects, inconsistent behavior across platforms, and the complete absence of any structured QA process or documentation. The startup team was fully focused on development, with no dedicated testers in place, which led to bugs accumulating and fixes being released without proper testing.

Additionally, the platform included crypto wallets, transaction displays, and real-time data updates, where even minor inaccuracies could significantly damage user trust. With applications running on Android, iOS, web, and large-screen environments, the client needed fast defect resolution across multiple platforms without slowing down development.

Key Challenges

• Limited internal resources for quality assurance and release verification
• No existing QA process, test documentation, or test cases
• Large volume of unreported and unverified legacy defects
• Cross-platform complexity (mobile apps, web, and TV environments)
• Inconsistent wallet and transaction data updates across platforms
• Lack of release validation and regression testing
• Testing performed only by developers on an ad-hoc basis
• Time constraints for stabilizing the product and improving market readiness

Solutions

We introduced a dedicated QA setup into the client’s delivery process and rebuilt quality control from the ground up. Starting with full exploratory testing, our team thoroughly analyzed the existing solution across Android, iOS, web, Apple TV, and Google Chromecast. This allowed us to quickly map real user flows, identify hidden critical defects, and understand where the platform was most vulnerable from a stability and data consistency standpoint.

To eliminate uncertainty and ensure long-term control, we built a structured QA workflow with formal test documentation, sustainable regression cycles, and systemic bug fix verification. Testing was mainly executed on real physical devices, ensuring accurate evaluation of usability, key functionality, device-specific features, transaction accuracy, and large-screen rendering. We also used BrowserStack to increase the number of device/OS/browser combinations we tested.

Key Solutions and Activities

• Set up consistent communication between QA and developers to speed up defect resolution
• Built a complete functional test suite from scratch for wallets, NFT purchasing, account management, and large-screen viewing
• Introduced structured bug reporting with severity levels, reproduction steps, and bug fix validation workflows
• Established systematic regression testing after every batch of fixes
• Performed cross-platform compatibility testing across mobile, web, and TV environments using real devices
• Checked crypto wallet accuracy, balance synchronization, and transaction display consistency
• Conducted UI/UX and usability testing to verify navigation and interaction logic
• Created full QA documentation package, including test cases, checklists, and testing reports

Results

Within two months, the platform moved from unstable, reactive testing to a controlled, documented QA process with full regression coverage. Our team created 100+ test cases, identified and documented 50+ defects, and increased overall release stability by an estimated 45%. The mobile crash rate across Android and iOS applications also dropped significantly after in-depth fix verification and compatibility testing.

Crypto wallet accuracy and transaction display consistency were stabilized across mobile, web, and large-screen environments, including Apple TV and Google Chromecast. In addition to that, we introduced complete test documentation from the ground up and set up a sustainable QA process involving both development and testing teams, giving the client long-term control over quality and platform reliability.