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Senior-only AI and SaaS engineering

Apptension is a senior-only AI and SaaS engineering company. We take RAG, agents, voice AI, and multi-tenant SaaS from prototype to production, then hand over the code, evaluation harness, and guardrails your team needs to operate them.

  • Min project size
    $25,000+
  • Hourly rate
    $50 - $99 / hr
  • Employees
    50 - 249
  • Locations
    Poznań, Poland
  • Year founded
    Founded 2012

1 Locations

  • Poznań , Poland

Select Focus Area
Application Platforms
Amazon Application Development Framework
50%
Linux server
10%
Other app platform
10%
Heroku
5%
AI Agent Development Focus
Voice AI Agents
65%
AI Agent Platforms & Builders
20%
AI Agent Frameworks
15%
AI Agent Purpose Focus
Customer Service AI Agents
25%
Productivity AI Agents
25%
Business Intelligence AI Agents
20%
Coding & Development AI Agents
20%
Sales & Lead Generation AI Agents
10%
AI Technologies & Models
Anthropic
75%
Open AI GPT-3
25%
Frameworks and CMS
Django
25%
Programming & Scripting
Python
22%
C#
6%
Go
6%
HTML5
6%
Redux
6%
AJAX
3%
Industries
Business services
20%
eCommerce
20%
Information technology
15%
Arts, entertainment & music
10%
Consumer products & services
10%
Financial services
10%
Legal Cannabis
10%
Media
5%
Clients
Midmarket ($10M - $1B)
50%
Enterprise (>$1B)
35%
Small Business (<$10M)
15%

Pricing Snapshot

Min. project size $25,000+
Avg. hourly rate $50 - $99 /hr
Rating for cost 4.7 /5

What Clients Have Said

Apptension is praised for competitive pricing and delivering good value for cost. Clients reported project costs ranging from $10,000 to over $300,000, with satisfaction in budget adherence and quality of work across diverse project scopes.

This summary is based on verified Clutch reviews.

Most Common Project Size

$50,000 - $199,999 based on 18 reviews
< $49,999 $50,000 - $199,999 $200,000 - $999,999 > $1,000,000

Select a service to see pricing information

Highly Rated Similar Providers

Apptension Review Insights

Overall Review Rating

4.8
  • Quality 4.8
  • Schedule 4.7
  • Cost 4.7
  • Willing to Refer 4.9

Top Mentions

Review Highlights

  • Time Zone Challenges

    While Apptension's global reach is beneficial, some clients experienced challenges due to time zone differences, impacting synchronous communication. However, this was often mitigated by flexible working hours.

  • Cost-Effective Solutions

    Apptension is recognized for providing good value for cost, delivering high-quality solutions that align with client budgets. Their pricing is seen as competitive and reasonable.

  • Excellent Communication

    Apptension's communication is frequently highlighted as a major asset. They use various tools like Slack, Jira, and email to ensure clarity and responsiveness, fostering strong collaboration with clients.

  • High-Quality Deliverables

    The company consistently delivers high-quality products, exceeding client expectations in terms of design implementation and functionality. Clients appreciate the attention to detail and the final product's performance.

  • Effective Project Management

    Clients commend Apptension's project management skills, noting their ability to deliver on time and within budget. They maintain clear communication and adapt well to changes, ensuring a smooth workflow and successful project outcomes.

  • Proactive and Innovative

    Clients value Apptension's proactive approach, where they offer suggestions and improvements to enhance project outcomes. Their innovative mindset contributes to successful and forward-thinking solutions.

Apptension Reviews

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Services
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Industry
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Mobile & Web App Development for Management Consulting Firm

  • Custom Software Development Mobile App Development UX/UI Design
  • $1,000,000 to $9,999,999
  • Oct. 2022 - Apr. 2024
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They were determined to make the project and collaboration a success."

Apr 28, 2024
Partner & Associate Director, Management Consulting Firm
Anonymous
Verified
  • Other industries
  • Norway
  • 10,001+ Employees
  • Online Review
  • Verified

Apptension designed and developed a digital banking app for a management consulting company. The team built the mobile and web frontends using React Native and the backend using JavaScript.

E-Commerce Platform Dev for Independent Creative Agency

  • Custom Software Development E-Commerce Development
  • $50,000 to $199,999
  • Jan. 2022 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Apptension showed great flexibility, having deep technical knowledge and understanding of how our industry works."

Nov 14, 2022
Head of Production, Independent Creative Agency
Anonymous
Verified
  • Advertising & marketing
  • Barcelona, Spain
  • 51-200 Employees
  • Online Review
  • Verified

Apptension has been hired by an independent creative agency to develop an e-commerce platform for an end client. They work as an extension of the team and directly communicate with the end client.

Android App Dev Services for Management Consulting Company

  • Mobile App Development
  • $200,000 to $999,999
  • Oct. 2021 - Apr. 2022
5.0
Quality
5.0
Schedule
5.0
Cost
4.5
Willing to Refer
5.0

"The dedicated team was professional, responsive, and proactive with the solutions they offered for our project."

Aug 11, 2022
Engineering Director, Management Consulting Company
Anonymous
Verified
  • Other industries
  • London, England
  • 10,001+ Employees
  • Online Review
  • Verified

Apptension developed a home management mobile app for a consulting company. The app had three main submodels and a marketplace for home services. The technologies used include Python, React, and React Native. 

E-Commerce Site Dev for Beauty Brand Incubator

  • E-Commerce Development
  • $50,000 to $199,999
  • July 2019 - May 2020
5.0
Quality
4.5
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"The organization and ease of communication were very impressive."

May 16, 2022
Founder & CEO, Magic Dusk
Daniel Kiyoi
Verified
  • Other industries
  • Los Angeles, California
  • 1-10 Employees
  • Online Review
  • Verified

Apptension developed an e-commerce platform for a beauty brand incubator. Among the technologies used were Basecamp, Jira, Slack, G Suite, Invision Studio, Sketch, and Zeplin.

E-Commerce Development for Contemporary Art Retailer

  • E-Commerce Development Web Design Web Development
  • $200,000 to $999,999
  • Feb. - May 2021
4.5
Quality
4.0
Schedule
4.5
Cost
4.5
Willing to Refer
4.5

"They've integrated very well with my internal team, and they are also able to scale up and down to suit our needs."

Apr 27, 2022
Head of E-Commerce, Contemporary Art Retailer
Anonymous
Verified
  • Retail
  • Brooklyn, New York
  • 11-50 Employees
  • Online Review
  • Verified

Apptension developed a fine arts e-commerce site for a contemporary art retailer. They built a customized frontend store application based on the BigCommerce engine Wagtail CMS.

SaaS Management Tool for Cannabis Company

  • Custom Software Development UX/UI Design
  • $50,000 to $199,999
  • May - Oct. 2021
5.0
Quality
5.0
Schedule
4.5
Cost
5.0
Willing to Refer
5.0

"They integrated very well with our internal project management processes and our teams had excellent synergy."

Feb 22, 2022
Software Engineering Manager, Cannabis Company
Anonymous
Verified
  • Other industries
  • Toronto, Ontario
  • 5,001-10,000 Employees
  • Online Review
  • Verified

Apptension was assigned by a cannabis company with creating a frontend for their internal business management tool. They also spent a large fraction of their time on QAs.

E-Commerce Development for Mobile Checkout Platform

  • E-Commerce Development
  • $50,000 to $199,999
  • Sep. 2021 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They are a true partner in the evolution of a product from concept to finished app out in the world."

Dec 10, 2021
CEO, blkbx.
Anonymous
Verified
  • Other industries
  • London, England
  • 1-10 Employees
  • Online Review
  • Verified

A mobile checkout platform wanted to create a transactional, account-based MVP that can provide performance analytics. They hired Apptension to provide the resources and expertise they needed.

App Design for Mobile Application Company

  • Mobile App Development
  • $200,000 to $999,999
  • Oct. 2018 - Oct. 2020
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"The most impressive was their flexibility and the unconditional way to face all challenges and problems."

Oct 21, 2020
CEO, LESS_
Mateusz Oleksiuk
Verified
  • Other industries
  • Wroclaw, Poland
  • 11-50 Employees
  • Online Review
  • Verified

Apptension provided mobile application development for a mobile application company. The team designed an app to will serve  as a platform for informed fashion users.

Mobile App Development for Marketing Consultants

  • Mobile App Development
  • Consumer Mobile App Development
  • $50,000 to $199,999
  • Nov. 2019 - Ongoing
4.5
Quality
5.0
Schedule
4.5
Cost
4.0
Willing to Refer
5.0

“They have a very constructive approach to client feedback and were always willing to come up with new solutions.”

Apr 14, 2020
Strategic Producer of New Business, pro(u)d Solutions
Catarina Rocha
Verified
  • Advertising & marketing
  • Lisbon, Portugal
  • 1-10 Employees
  • Phone Interview
  • Verified

Apptension is developing a mobile app for a consultant company’s multinational client. So far, they’ve completed the discovery phase and have moved onto development.

CMS Dev for Special Effects Co

  • Custom Software Development
  • Other frameworks and CMS
  • Confidential
  • Nov. 2019 - Jan. 2020
5.0
Quality
5.0
Schedule
4.0
Cost
4.0
Willing to Refer
5.0

"Their team communicated clearly and remained on top of their assignments."

Mar 19, 2020
Interactive Producer, The Mill
Sinead Catney
Verified
  • Advertising & marketing
  • London, England
  • 501-1,000 Employees
  • Phone Interview
  • Verified

Apptension developed a CMS to support a website and an AR app for a visual effects company. The team built the product to direct content within the app including a gallery, localizations, and copy.

Showing 1-10 of 22 Reviews

Our Story

Three engineers met at Poznań University of Technology in 2009. Bias: ship something real, then make it better. In 2012 they won Poznań Hackfest, earned a coworking desk, and founded Apptension on August 21.

App for what we build. Tension for the friction that turns ideas into production software. We later founded Teamdeck from running our own teams. That product DNA still shapes how we ship.

Since 2012: 30+ senior engineers. 360+ projects. Hackathon speed, enterprise discipline.

Locations (1)

Górecka 1 PoznańPoland 60-101

50 - 75

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