$10,000+
$30 - $49 / hr
10 - 49
SMBs
Poland, Warsaw
2015
Within 2-3 weeks

Appstronauts is a software development company with offices located in Warsaw (Poland) and Manchester (UK). They provide design, frontend development and backend development for iOS and Android. The company works with clients at all stages: from workshops and prototyping, through design and development, to release and maintenance. Appstronauts provide custom solutions for startups, small and medium enterprises and corporations. They have experience in various industries like fin-tech, e-commerce, transportation, and telecommunication. They also create complex digital marketplaces and provide applications to help companies improve their internal processes. According to Clutch, Appstronauts are one of the top mobile app development companies in Poland. They have an excellent team of experienced, knowledgeable developers. Their clients value the quality of their work and the fact that they are not only technical specialists but also understand the business side of every project. They claim that Appstronauts team is very creative, open-minded and engaged in clients’ success.

Techreviewer rating

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4.9

Client review platforms

The company's reputation is reflected through ratings and reviews from different review websites:

5.0
(28 reviews)Clutch
5.0
(3 reviews)GoodFirms
5.0
(5 reviews)Google

Employee review platforms

The company's work culture and employee satisfaction from top workplace review platforms:

5.0
(3 reviews)Glassdoor

AI Overview

Powered bytechreviewer AI
This company performance overview is based on AI analysis of 31 client reviews across 2 different review platforms. Read more about our methodology.
Last updated: April 2026

Performance snapshot

Appstronauts is a Poland-based software development firm with a strong track record across mobile app development, custom software, web development, and IT staff augmentation. The review corpus is large and spans nearly a decade, showing consistent excellence across all five evaluation categories. The overwhelming majority of ratings are perfect or near-perfect, with only isolated minor concerns around communication and scheduling. No systemic or recurring negative patterns were identified across the 31 reviews.

Performance breakdown

Technical expertise
Strong

Multiple reviews cite specific technologies including .NET, Angular, Flutter, Python, Node.js, Ionic, MS Azure, and IoT, alongside deliverables such as infrastructure migrations, PWAs, and MVP builds. A staff augmentation engagement for a multinational oil and gas company involved migrating full infrastructure to MS Azure and delivering a .NET API with an Angular platform.

Project management & delivery
Strong

Across more than 20 reviews, clients consistently report on-time delivery, adherence to roadmaps, and agile or Scrum-based sprint methodologies. One engagement delivered an MVP to market in four months, and another produced a fully operational website in under one week, both within agreed budgets.

Communication & collaboration
Mixed

The vast majority of clients praise transparent, proactive communication via Slack, Jira, email, and virtual meetings. However, one reviewer (FCapp, 2022) explicitly noted that communication could have been better, preventing a uniformly Strong rating despite all other feedback being highly positive.

Reliability
Strong

A media company reviewer highlighted delivery of a polished, bug-free product that was easy to maintain, while a four-year ongoing e-commerce engagement reports consistently improved response times and resource usage. No reviews mention recurring bugs, missed deadlines, or product instability across the full review set.

Client satisfaction & outcomes
Strong

Quantified outcomes are well-documented: a coffee events platform served over 10,000 attendees; a SaaS platform scaled to service 4,000 technicians and 100,000 clients monthly; cloud costs were reduced by one-third for a football community app. A renewable energy company reported a substantial surge in app downloads and active users, positioning the app as a key revenue generator.

Best for

Appstronauts is best suited for SMEs and mid-market companies seeking custom mobile or web application development, staff augmentation, or CRM and API integrations, particularly those requiring agile delivery, cross-platform expertise, and a collaborative partner mindset.

Clients info

Appstronauts serves a wide range of industries including e-commerce, financial services, healthcare, retail, energy, media, and business services. Clients range from early-stage startups and micro-businesses to large multinational enterprises. Project budgets most commonly fall between $10,000 and $199,999, with at least one engagement exceeding $200,000 for a multinational oil and gas firm. Primary industries represented include eCommerce, Financial Services, Business Services, Retail, Healthcare & Medical, Energy & Natural Resources, Media, Advertising & Marketing. Typical client size bands include 1-10 Employees, 11-50 Employees, 51-200 Employees, 201-500 Employees, 1,001-5,000 Employees, 10,001+ Employees. Common project budget ranges include Less than $10,000, $10,000 to $49,999, $50,000 to $199,999, $200,000 to $999,999.

Review strength

The assessment is based on 31 reviews sourced from two platforms, spanning from August 2018 to February 2025. The review volume is robust and recent, with the majority of reviews published within the last four years. Three reviews date back to 2018–2019 and should be weighted with appropriate context given the passage of time. Review date range: 2018-08-09 - 2025-02-14.

Performance breakdown

Technical expertise
Strong

Multiple reviews cite specific technologies including .NET, Angular, Flutter, Python, Node.js, Ionic, MS Azure, and IoT, alongside deliverables such as infrastructure migrations, PWAs, and MVP builds. A staff augmentation engagement for a multinational oil and gas company involved migrating full infrastructure to MS Azure and delivering a .NET API with an Angular platform.

Project management & delivery
Strong

Across more than 20 reviews, clients consistently report on-time delivery, adherence to roadmaps, and agile or Scrum-based sprint methodologies. One engagement delivered an MVP to market in four months, and another produced a fully operational website in under one week, both within agreed budgets.

Communication & collaboration
Mixed

The vast majority of clients praise transparent, proactive communication via Slack, Jira, email, and virtual meetings. However, one reviewer (FCapp, 2022) explicitly noted that communication could have been better, preventing a uniformly Strong rating despite all other feedback being highly positive.

Reliability
Strong

A media company reviewer highlighted delivery of a polished, bug-free product that was easy to maintain, while a four-year ongoing e-commerce engagement reports consistently improved response times and resource usage. No reviews mention recurring bugs, missed deadlines, or product instability across the full review set.

Client satisfaction & outcomes
Strong

Quantified outcomes are well-documented: a coffee events platform served over 10,000 attendees; a SaaS platform scaled to service 4,000 technicians and 100,000 clients monthly; cloud costs were reduced by one-third for a football community app. A renewable energy company reported a substantial surge in app downloads and active users, positioning the app as a key revenue generator.

Location and contacts

Poland, Warsaw
Twarda 18
00-105
+48 570 707 700
United Kingdom, Manchester
John Dalton Street
M2 6DS
+44 161 315 0255

Major clients

Solutions30
Agora S.A
OTIS