scroll
Back to Services

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

Your product needs a different approach after the launch to keep scaling up. A view from a fresh perspective can bring out new opportunities and identify expansion blocks. Respond to the actual market needs and aim for new horizons with dedicated experts on board. 
Front-end
tech stack
We adopt highly scalable JavaScript frameworks at the front to build beautiful and swift web solutions.
javascript
next.js
react native
react.js
vue.js
gatsby.js
python
django
node.js
flask
graphql
Back-end
tech stack
Playing with high-end and versatile backend solutions, we’ll produce complex, secure, and scalable documentation according to the industry’s best standards.
Our QA
toolkit
Well-planned knowledge transfer, expert teams, and highly customizable tech capabilities allow
us to provide high-end quality testing.
firebase
sentry
cypress.io
testrail
google tag
manager
google
analytics
hotjar
impact
mapping
rice
mixpanel
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.
Address user feedback about your product in no time
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
Daniel Kiyoi - Apptension Client
Daniel Kiyoi
CEO & Founder Magic Dusk
“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_
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
Nathan Sparshott
Co-Founder & CEO of Hyper
“The SaaS Boilerplate Appension built was a huge reason we were so successful, because all these little seeminaly 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.
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
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
Catarina Rocha
Business Development Manager, 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
Christian Marc Schmidt
Partner at Schema

all our services

Read about our apps & other stuff