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We Provide Full Scope Mobile Development Expertise

Onix is a full-cycle software development company that builds well-suited solutions to drive company outcomes for startups, small and medium-sized businesses.

1100+  Successfully delivered projects
23+  Years of experience in software development
55+ Countries represented by clients
370+ Talented multi‑dimensional experts

  • $10,000+
  • $25 - $49 / hr
  • 250 - 999
  • Kropyvnytskyi, Ukraine
  • Founded 2000

2 Languages that we service

  • English
  • Ukrainian

38 Timezones that we service

GMT
Greenwich Mean Time (GMT)
CET
Central European Time (CET)
ACT
Australia Central Time (ACT)
ART
(Arabic) Egypt Standard Time (ART)
EET
Eastern European Time (EET)
EST
Eastern Standard Time (EST)
IDT
Israel Daylight Time (IDT)
PST
Pacific Standard Time (PST)
AGT
Argentina Standard Time (AGT)
AKST
Alaska Standard Time (AKST)
AST
Arabia Standard Time (AST)
AET
Australia Eastern Time (AET)
BST
Bangladesh Standard Time (BST)
CNT
Canada Newfoundland Time (CNT)
COT
Colombia Time (COT)
CST
Central Standard Time (CST)
CTT
China Taiwan Time (CTT)
EAT
Eastern African Time (EAT)
BET
Brazil Eastern Time (BET)
CAT
Central African Time (CAT)
GST
Gulf Standard Time (GST)
HST
Hawaii Standard Time (HST)
IET
Indiana Eastern Standard Time (IET)
IST
India Standard Time (IST)
JST
Japan Standard Time (JST)
MET
Middle East Time (MET)
MIT
Midway Islands Time (MIT)
NET
Near East Time (NET)
MST
Mountain Standard Time (MST)
NST
New Zealand Standard Time (NST)
PNT
Phoenix Standard Time (PNT)
PLT
Pakistan Lahore Time (PLT)
PRT
Puerto Rico and US Virgin Islands Time (PRT)
SAST
South African Standard Time (SAST)
SGT
Singapore Standard Time (SGT)
SST
Solomon Standard Time (SST)
UTC
Universal Coordinated Time (UTC)
VST
Vietnam Standard Time (VST)

3 Locations

  • Kropyvnytskyi , Ukraine
  • Poznań , Poland
  • Bratislava , Slovakia

Focus

Pricing Snapshot

Min. project size $10,000+
Avg. hourly rate $25 - $49 /hr
Rating for cost 4.8 /5

What Clients Have Said

Onix-Systems offers competitive pricing, with projects ranging from $5,000 to over $192,000. Clients appreciate the value for cost, citing good project management and quality deliverables while maintaining flexibility and responsiveness.

This summary is based on verified Clutch reviews.

Most Common Project Size

$10,000 - $49,999 based on 36 reviews
< $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000
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Onix-Systems Review Insights

Overall Review Rating

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

Top Mentions

Review Highlights

  • Impressive Technical Expertise

    Clients consistently praise Onix-Systems for overcoming complex technical challenges, such as developing an iOS app deemed impossible by others, and integrating complex hardware like Apple Watch and Android Watch. Their ability to deliver technically demanding projects is a key strength.

  • Innovative Approach to Unique Challenges

    Onix-Systems is recognized for their innovative approach to solving unique and unprecedented technical challenges, setting them apart from competitors.

  • Language and Communication Challenges

    While Onix-Systems generally maintains good communication, some clients have noted language barriers, particularly with developers, which can lead to miscommunications in technical discussions.

  • Effective Problem-Solving

    The team at Onix-Systems is known for proactive problem-solving, often anticipating potential issues and offering solutions before they arise. This approach saves time and resources for clients.

  • Flexibility and Adaptability

    Onix-Systems demonstrates flexibility by adapting to changing project requirements and client needs. Their ability to pivot and innovate on the go is frequently highlighted as a valuable trait.

  • Cultural and Value Alignment

    Clients often choose Onix-Systems for their cultural fit and alignment with company values, which enhances collaboration and project outcomes.

Onix-Systems Reviews

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All Filters

DevOps Services for Software Company

  • Custom Software Development DevOps Managed Services
  • Confidential
  • May 2014 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They have an amazing culture of continuous improvement and an obsession with customer success!"

Head of Product, Software Company
Anonymous
  • Software
  • San Francisco, California
  • 51-200 Employees
  • Online Review 
  • Verified

Onix-Systems provides DevOps services for a software company. The team handles CI/CD, cloud infrastructure, and app development, primarily in Python. They manage the client's DevOps function and organization.

Website Development for Design Agency

  • Application Testing Custom Software Development Web Development
  • Less than $10,000
  • Nov. - Dec. 2024
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Onix-Systems’ technical expertise and commitment to delivering a high-quality product were truly impressive."

Project Manager, Gapsy Studio
Anonymous
  • Design
  • Ukraine
  • 11-50 Employees
  • Online Review 
  • Verified

Onix-Systems developed a website for a creative design agency. The team created a responsive site with a CMS, integrated custom animations, and optimized the site's performance to ensure fast loading times.

VR Development for Creative Agency

  • AR/VR Development
  • Confidential
  • Sep. - Nov. 2024
5.0
Quality
5.0
Schedule
4.5
Cost
5.0
Willing to Refer
5.0

"Onix-Systems was able to touch on the essence of our question and interpret our needs well."

Owner, Director & Photographer, First on Mars
Herman Poppelaars
  • Other industries
  • Amsterdam, Netherlands
  • 1-10 Employees
  • Phone Interview 
  • Verified

Onix-Systems provided VR development services for a creative agency's end client's product presentation. The team was responsible for designing 60 seconds of 360-degree animations for a two-minute video.

Web & Mobile App Dev for Event Marketing & Production Firm

  • Mobile App Development UX/UI Design Web Development
  • $50,000 to $199,999
  • Feb. 2024 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"The level of communication felt as though they were an extension of our team."

CEO, Bar Crawl Nation LLC
Peter Altholz
  • Arts, entertainment & music
  • Boca Raton, Florida
  • 1-10 Employees
  • Online Review 
  • Verified

Onix-Systems provides website and mobile app development for iOS and Android for an event marketing and production firm. The team has fixed bugs, added new features, and improved the UI/UX design.

UX/UI Design for Software

  • Custom Software Development UX/UI Design Web Development
  • $50,000 to $199,999
  • June 2021 - Sep. 2023
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Onix-Systems is highly professional and focused on efficiently delivering a high-quality product."

Executive, 4D Insight
Anonymous
  • Software
  • United Kingdom
  • 1-10 Employees
  • Online Review 
  • Verified

Onix-Systems developed and designed an immersive training platform for a software company. The team was also responsible for setting up the platform server and providing hosting services. 

Web Development for Media Content Company

  • Web Development
  • Less than $10,000
  • Jan. 2023 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Their depth of knowledge and ability to place the correct expert into the project as required are impressive."

Director of Operations, Media Content Company
Anonymous
  • Media
  • St. Louis, Missouri
  • 1-10 Employees
  • Online Review 
  • Verified

Onix-Systems has redesigned and redeveloped a website for a media content company. The project's goal is to refactor, update, and make the website more efficient.

Web Dev & Design for Sports Video Production Company

  • Web Design
  • $10,000 to $49,999
  • July 2022 - Jan. 2023
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Top company for a competitive price. Great people to work with."

President, Colorado Sports Video
Heberto Limas-Villers
  • Media
  • Denver, Colorado
  • 11-50 Employees
  • Online Review 
  • Verified

Onix-Systems was hired by a sports video production company to develop a new website that would automate most of their backend tasks. The team handled the design flow of the site and execution.

Web App Dev for Fitness Company

  • Mobile App Development Web Development
  • $50,000 to $199,999
  • July 2022 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

“I’ve been most impressed by their level of communication and timelines.”

CEO, Eric Roberts Fitness
Eric Roberts
  • Wellness & Fitness
  • Highland, Maryland
  • 1-10 Employees
  • Phone Interview 
  • Verified


Onix-Systems has built a mobile web app for a fitness company. They’ve used Figma and Vue.js to design and build the app from scratch, which allows users to complete workouts and log data points.

Mobile App Dev & UI/UX Design for Fintech Startup Company

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

“Everything Onix-Systems does is impressive, but their English level is their best asset.”

Co-Founder, COO & CPO, Fintech Startup Company
Anonymous
  • Business services
  • Makati City, Philippines
  • 1-10 Employees
  • Phone Interview 
  • Verified

Onix-Systems is the development partner of a fintech startup. They’ve helped them design and develop their banking app and admin portal using Java, Sprint Boot, Flutter, and Vue.js as the main technologies.

Clutch verification provides an additional layer of data to help you make the right purchasing decision of business services.

Learn More
Verified Client Reviews
38
Overall Review Rating
4.9
Source
Clutch
Last Updated
March 21, 2025
Business Entity
Business Entity Name Onix-Systems Limited Liability Company
Source Youcontrol
Jurisdiction of Formation Ukraine
Date of Formation December 25, 2001
Status Active
Last Updated March 31, 2022
ID 31774976
Credit Report Results

Clutch was unable to obtain a credit report for this company. However, Clutch performed additional verification on this company and confirmed that there are no negative legal filings or large outstanding debts. This company has also received 3 or more verified reviews on our platform.

Learn More About The Clutch Verification Process

Locations (3)

301 - 400

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