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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

  • High Client Satisfaction

    Onix-Systems maintains a high level of client satisfaction, with many clients expressing willingness to continue working with them on future projects due to the quality of work and service provided.

  • 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.

  • 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.

  • Cultural and Value Alignment

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

  • Timely Delivery with Few Delays

    Most clients report that Onix-Systems delivers projects on time, though there are occasional mentions of minor delays. Overall, their adherence to timelines is praised.

  • Strong Project Management and Communication

    Onix-Systems is commended for their excellent project management, timely deliveries, and clear communication. They maintain effective workflows and are responsive to client needs, ensuring projects run smoothly.

Onix-Systems Reviews

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E-Learning App Development for Software Development Firm

  • Custom Software Development Mobile App Development UX/UI Design
  • $50,000 to $199,999
  • May 2021 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
CEO, Shmonster
Michal Finegold
  • Software
  • Greenwich, Connecticut
  • 1-10 Employees
  • Online Review 
  • Verified

Onix-Systems developed an e-learning app for a software development firm, incorporating data analytics, a backend for user registration, and web-based access. 

Mobile App Dev for SaaS Company

  • Mobile App Development
  • $50,000 to $199,999
  • Jan. 2022 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
4.0
Willing to Refer
5.0

"Their clear communication and quick response have resulted in efficient project management and completion."

Co-Founder, Penny
Mary-Catherine McRoskey
  • Advertising & marketing
  • San Diego, California
  • 1-10 Employees
  • Online Review 
  • Verified

Onix-Systems is helping a SaaS firm develop an iOS and Android mobile app based on the codes, app designs, and front- and backend logic they provided. The app features camera integration and third-party APIs.

VR & AR Development for Web & VR Development Company

  • Custom Software Development
  • $10,000 to $49,999
  • Jan. - July 2022
5.0
Quality
5.0
Schedule
5.0
Cost
4.5
Willing to Refer
5.0

"They always have an elegant way of achieving the desired results."

Engineering Manager, Immersion 360
Olivier Leprohon
  • Software
  • Montreal, Quebec
  • 1-10 Employees
  • Online Review 
  • Verified

A VR firm has hired Onix-Systems for their dedicated VR and AR development resources. They provide customer projects for Onix-Systems to complete, split into tasks that are then executed in several revisions. 

VR Development for Consulting Company

  • AR/VR Development Mobile App Development Web Development
  • Less than $10,000
  • June 2021 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

''They’ve been doing everything right.''

Executive, Consulting Company
Anonymous
  • Consulting
  • Gaithersburg, Maryland
  • 1-10 Employees
  • Phone Interview 
  • Verified

A consulting company hired Onix-Systems to provide VR development. They're creating the unity base application for the project that the client is working on.

Mobile App Dev for Educational Apps Company

  • Mobile App Development
  • $10,000 to $49,999
  • Mar. 2020 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They never treat me as just another client; there’s a real effort being put into our relationship and into the work."

Founder & Director, Educational Apps Company
Anonymous
  • Education
  • United Kingdom
  • 1-10 Employees
  • Phone Interview 
  • Verified

An educational apps company partnered with Onix Systems to rebuild one of their existing applications. The team has now developed two different iOS and Android apps.

UI/UX Design for Data Analytics Company

  • UX/UI Design
  • $10,000 to $49,999
  • Jan. - Mar. 2022
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They provided us with amazing UI/UX design — it was exactly what we had envisioned."

Business Analyst, QoreNext
Gary Kwan
  • IT Services
  • Singapore
  • 11-50 Employees
  • Online Review 
  • Verified

Onix-Systems designed the UI/UX of a data analytics company’s collaboration platform. After a thorough explanation of the client’s product, they created wireframes and the app’s prototype using Figma. 

 

Front End App Dev & UI/UX Design for Fin Tech Company

  • Mobile App Development UX/UI Design Web Development
  • $50,000 to $199,999
  • Mar. 2021 - Ongoing
4.5
Quality
4.5
Schedule
4.0
Cost
5.0
Willing to Refer
4.5

"Beyond their competency and straightforward execution of tasks, I like their flexibility." 

Head of Product, Fin Tech Company
Anonymous
  • IT Services
  • Zurich, Switzerland
  • 1-10 Employees
  • Phone Interview 
  • Verified

Onix-Systems provides ongoing software development, including UI/UX creation and frontend application development. They work in React Native and have delivered iOS and Android solutions as well. 

Software Development for Learning Software Company

  • Custom Software Development
  • Confidential
  • Oct. 2019 - Ongoing
4.5
Quality
4.5
Schedule
4.0
Cost
4.0
Willing to Refer
5.0

"They’ve been diligent and have good technical individuals in their team."

Executive, Learning Software Company
Anonymous
  • Software
  • United Kingdom
  • 201-500 Employees
  • Phone Interview 
  • Verified

A learning software company hired Onix-Systems to provide software development. Their efforts involve front- and backend development, along with data aggregation for multiple training platforms.

UI/UX Design for Data Science & PostgreSQL Company

  • UX/UI Design
  • $50,000 to $199,999
  • Feb. 2020 - Feb. 2021
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"The project was very well treated by the team."

PostgreSQL Expert, CYBERTEC
Pavlo Golub
  • IT Services
  • Austria
  • 51-200 Employees
  • Online Review 
  • Verified

A PostgreSQL database company hired Onix-Systems to design the UI/UX of their platform. The team used React.js on the frontend and Node.js on the middleware, designing and implementing the UI section by section.

Website & App Redesign for Gaming Platform

  • Web Development
  • $50,000 to $199,999
  • June - Dec. 2021
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They always went above and beyond and really viewed themselves as an extension of our company's team."

CEO, Bracketology, LLC
Jonah Fialkow
  • Gaming
  • Chicago, Illinois
  • 1-10 Employees
  • Online Review 
  • Verified

A fantasy gaming platform hired Onix-Systems, LLC to redevelop their website and application. The team did large-scale work on AWS and delivered a completely repackaged design for the project.

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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