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Product optimization
& maintenance

Product optimization
& maintenance
Scaling products, fixing bugs, and improving the UX - our flexible team is ready to take your existing product to the next level.

what we do

Quality testing
Quality testing
Quality testing
Bug Fixing
Bug Fixing
Bug Fixing
New feature development
New feature development
New feature development
Technical audit
Technical audit
Technical audit
User data analysis
User data analysis
User data analysis
UX audit
UX audit
UX audit

how we do it

With experience in various industries, we know how to hit your targets with high-performant, feature-packed, and user-friendly web products. Our extensive tech stack and capabilities allow us to validate your ideas, turning them into successful MVP releases and rapid product growth.
Frontend
tech stack
We adopt widely tested JavaScript & TypeScript frameworks at the frontend to build beautiful and swift web interfaces.
javascript
typescript
react.js
vue.js
python
django
node.js
flask
graphql
firebase
Backend
tech stack
Playing with high-end and versatile backend solutions, we’ll produce complex, secure and scalable architecture & software according to the industry’s best standards.
Our QA
toolkit
Our testing process is rigorous and designed to identify and address any potential issues before they become problems, ensuring that your application has the best possible interface for your users.
sentry
cypress.io
testrail
selenium
Webdriverio
appium
cucumber
aws device
farm
browser
stack
docker
detox
active
collab
agile pm
asana
extreme
programming
github
issues
kanban
pmi
trello
Our project
management
tools
Streamline your product development and minimize business risks with our data-driven project management approach.

Our focus on data-driven decision making helps reduce time-to-market and ensures that your project stays on track and on budget.
UX & other
Continuos UX optimization is a must for further product scale-up.

Analyzing user behavior,
we’ll help you meet customer expectations and ensure an intuitive experience.
google tag
manage
google
analytics
hotjar
impact
mapping
rice
mixpanel
Need help with fixing your product?
Let us bring your product to a new level.

what clients say about us?

The code and the work were good quality and really what we were looking for. They were able to bring technical design thinking to the project. Project management was tight and I always knew what was happening.
Daniel Kiyoi
CEO & Founder Magic Dust
Apptension was flexible and professional. When I needed to quickly add capacity, it took a week or two at worst - often days. The cooperation enabled me to slowly scale up my own IT team, and the company was very helpful until the last moments of the transition.
Mateusz Oleksiuk
CEO LESS_
The technical creativity delivered by the team at Apptension was invaluable in the formation of our mixed reality start-up Hyper.
Nathan Sparshott
Co-Founder & CEO of Hyper
The SaaS Boilerplate Apptension built was a huge reason we were so successful, because all these little seemingly unrelated tasks and integrations needed to happen. If we had been working with anybody else, It would have probably taken months to do the same work.
Kwame Nyanning
CEO blkbx.
We needed their help to build the backend services and capabilities needed to deliver a production level on demand. Their ability to produce high-quality work with consistency while dealing with a new type of project was impressive.
Kelly O’Conor
Product Lead, Siberia
The project’s success has resulted in a long-term partnership for design and development. Apptension is a fantastic partner, who is willing to go above and beyond in order to deliver what the client needs.
Catarina Rocha
p(r)oud solutions
Apptension fared well in our project, working with our bespoke CMS and complex requirements. The designs were implemented well and the schedule was kept tight.
Christian Marc Schmidt
Partner at Schema

all our services

Read about our apps & other stuff